TOUR

Interest Rate Risk Our exposure to interest rate risk primarily relates to the interest income generated by excess cash, which is mostly held in interest-bearing bank deposits. We have not used derivative financial instruments in our investment portfolio to hedge our exposure to the interest rate risk. Interest earning instruments carry a degree of interest rate risk. We have not been exposed to, nor do we anticipate being exposed to, material risks due to changes in market interest rates. However, our future interest income may fall short of expectations due to changes in market interest rates. Foreign Exchange Risk The conversion of Renminbi into foreign currencies, including U.S. dollars, is based on rates set by the People’s Bank of China. The Renminbi has fluctuated against the U.S. dollar, at times significantly and unpredictably. The value of Renminbi against other currencies is affected by changes in China’s political and economic conditions and by China’s foreign exchange policies, among other things. It is difficult to predict how market forces or government policies may impact the exchange rate between Renminbi and other currencies in the future. Substantially all of our revenues and expenses are denominated in RMB. We do not believe that we currently have any significant direct foreign exchange risk. To the extent that we need to convert U.S. dollars into Renminbi for our operations, appreciation of the Renminbi against the U.S. dollar would have an adverse effect on the RMB amount we receive from the conversion. Conversely, if we decide to convert Renminbi into U.S. dollars for the purpose of making payments for dividends on our ordinary shares or ADSs or for other business purposes, appreciation of the U.S. dollar against the Renminbi would have a negative effect on the U.S. dollar amounts available to us. 123 Table of Contents As of December 31, 2025, we had Renminbi-denominated cash and cash equivalents, restricted cash, short-term investments and long-term deposits of RMB806.95 million, and U.S. dollar-denominated cash, cash equivalents and short-term investments of US$47.18 million. Assuming we had converted RMB1.0 million into U.S. dollars at the exchange rate of RMB6.9931 per US$1.00 as of December 31, 2025, our U.S. dollar cash balance would have been US$162.57 million. If the Renminbi had depreciated by 10% against the U.S. dollar, our U.S. dollar cash balance would have been US$151.03 million instead. If the Renminbi had appreciated by 10% against the U.S. dollar, our Renminbi cash balance would have been US$174.11 million instead. To date, we have not entered into any material hedging transactions in an effort to reduce our exposure to foreign currency exchange risk.

Our Holding Company Structure and Contractual Arrangements with the VIE Tuniu Corporation is not an operating company in China but a Cayman Islands holding company with no equity ownership in the VIE. We conduct our business in China through (i) our PRC subsidiaries and (ii) the consolidated affiliated entities with which we have maintained contractual arrangements. PRC laws and regulations restrict and impose conditions on foreign investment in value-added telecommunication services and certain other businesses. Accordingly, we operate these businesses in China through the VIE, and such structure is used to provide investors with exposure to foreign investment in China-based companies where laws and regulations in China prohibit or restrict direct foreign investment in certain operating companies. Revenues contributed by the VIE accounted for 78.2%, 80.9% and 90.8% of our total revenues for the years of 2023, 2024 and 2025, respectively. Holders of our ADSs hold equity interest in Tuniu Corporation, our Cayman Islands holding company, and do not have direct or indirect equity interest in the VIE, and may never directly hold equity interests in the VIE. A series of contractual agreements, including powers of attorney, equity interest pledge agreement, cooperation agreement, purchase option agreement and shareholders’ voting rights agreement, have been entered into by and among our wholly owned PRC subsidiary, Beijing Tuniu Technology Co., Ltd., or Beijing Tuniu, the VIE and its shareholders. As a result of the contractual arrangements, we are able to direct the activities of and derive economic benefits from the VIE. We are considered the primary beneficiary of the VIE, and we have consolidated the financial results of the VIE in our consolidated financial statements under U.S. GAAP for accounting purposes. Neither we nor our investors has an equity ownership in, direct foreign investment in, or control through such ownership or investment of, the VIE, and the contractual arrangements are not equivalent to an equity ownership in the business of the VIE. For more details of these contractual arrangements, see “Item 4. Information on the Company—C. Organizational Structure.” However, the contractual arrangements may not be as effective as direct ownership and we may incur substantial costs to enforce the terms of the arrangements. There are substantial uncertainties regarding the interpretation and application of current and future PRC laws, regulations and rules regarding the status of our rights with respect to our contractual arrangements with the VIE and its shareholders. It is uncertain whether any new PRC laws or regulations relating to VIE structure will be adopted or if adopted, what they would provide. If we or the VIE is found to be in violation of any existing or future PRC laws or regulations, or fail to obtain or maintain any of the required permits or approvals, the relevant PRC authorities would have broad discretion to take action in dealing with such violations or failures. The PRC regulatory authorities could disallow the VIE structure, which would likely result in a material adverse change in our operations and cause our ADSs to decline significantly in value or become worthless. Our holding company, our PRC subsidiaries and the VIE, and investors of our company face uncertainty about potential future actions by the PRC government that could affect the enforceability of the contractual arrangements with the VIE and, consequently, significantly affect the financial performance of the VIE and our company as a whole. In addition, these agreements have not been tested in Chinese courts. For a detailed description of the risks associated with our corporate structure, please refer to risks disclosed under “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure.” The PRC government’s significant authority in regulating our operations and its oversight and control over offerings conducted overseas by, and foreign investment in, China-based issuers could significantly limit or completely hinder our ability to offer or continue to offer securities to investors. The laws and regulations governing the internet industry in China are evolving, hence bringing uncertainties to their interpretation and enforcement. Implementation of industry-wide regulations, including data security or anti-monopoly related regulations, in this nature may cause the value of such securities to significantly decline or become worthless. For more details, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The PRC government’s significant oversight over our business operation could result in a material adverse change in our operations and the value of our ADSs.” 3 Table of Contents The PRC regulatory and enforcement regime with regard to data security and privacy is evolving and may be subject to different interpretations or significant changes without prior notice. In the event that any new development requires us to change our business operations relevant to data security, data privacy or cybersecurity in general, we cannot assure you that we can comply with such new requirements in a timely manner or at all. Rules in this regime include the PRC Data Security Law and the Personal Information Protection Law released in 2021, which posed additional challenges to our cybersecurity and data privacy compliance. The Cybersecurity Review Measures promulgated in December 2021 imposed potential additional restrictions on China-based overseas-listed companies like us. If future implementing rules of the Cybersecurity Review Measures mandate clearance of cybersecurity review and other specific actions to be taken by issuers like us, we face uncertainties as to whether these additional procedures can be completed by us timely, or at all, which may subject us to government enforcement actions and investigations, fines, penalties, or suspension of our non-compliant operations, and materially and adversely affect our business and results of operations and the price of our ADSs. In September 2024, State Council released the Administrative Regulations on Cyber Data Security, which requires, among others, that a prior cybersecurity review should be required for cyber data processing activities which affects or may affect national security. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Business and Industry—Our business generates and processes a large amount of data, and we are required to comply with PRC and other applicable laws relating to privacy and cybersecurity. The improper use or disclosure of data could have a material and adverse effect on our business and prospects.” In addition, on February 17, 2023, the China Securities Regulatory Commission, or the CSRC, promulgated the Trial Administrative Measures of Overseas Securities Offering and Listing by Domestic Companies, or the Overseas Listing Trial Measures, and five guidelines, which became effective on March 31, 2023, requiring Chinese domestic companies’ overseas offerings and listings of equity securities be filed with the CSRC. According to the Overseas Listing Trial Measures, if we are deemed as an indirect overseas listed Chinese domestic company but fail to complete the filing procedures with the CSRC for any of our future securities offerings and listings outside of mainland China, including but not limited to follow-on offerings, secondary listings and going-private transactions, or follow any other reporting requirements required thereunder, we may be subject to penalties, sanctions and fines imposed by the CSRC and the departments of the State Council, which could have a material and adverse effect on our business, financial condition, results of operations, reputation and prospects, as well as the trading price of our ADSs. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The approval of or filing with the CSRC or other PRC government authorities may be required in connection with our offshore offerings under PRC law, and, if required, we cannot predict whether or for how long we will be able to obtain such approval or complete such filing.” Furthermore, the PRC regulators have promulgated new anti-monopoly and competition laws and regulations and strengthened the enforcement under these laws and regulations. There remain uncertainties as to how the laws, regulations and guidelines recently promulgated will be implemented and whether these laws, regulations and guidelines will have a material impact on our business, financial condition, results of operations and prospects. We cannot assure you that our business operations comply with such regulations and authorities’ requirements in all respects. If any non-compliance is raised by relevant authorities and determined against us, we may be subject to fines and other penalties. See “Item 3. Key Information—Risk Factors— Risks Related to Doing Business in China—Any failure or perceived failure by us to comply with the anti-monopoly and unfair competition laws and regulations may result in penalties against us and could have an adverse effect on our business, financial condition and results of operations.” Risks and uncertainties arising from the legal system in mainland China, including risks and uncertainties regarding the enforcement of laws and quickly evolving rules and regulations in mainland China, could result in a material adverse change in our operations and the value of our ADSs. With respect to the legal risks associated with being based in and having operations in mainland China, the laws, regulations and the discretion of PRC government authorities discussed in this annual report are expected to apply to mainland China entities and businesses, rather than entities or businesses in Hong Kong and Macau, which operate under different sets of laws from mainland China. As of the date of this annual report, regulatory actions related to data security or anti-monopoly concerns in Hong Kong and Macau do not have a material impact on our ability to conduct business, accept foreign investment in the future or continue to list on a United States stock exchange. However, the PRC government may influence our operations in Hong Kong and Macau at any time and new regulatory actions related to data security or anti-monopoly concerns in Hong Kong or Macau may be taken in the future, which may have a material impact on our ability to conduct business, accept foreign investment or continue to list on a United States stock exchange. For more details, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China— Uncertainties in the interpretation and enforcement of PRC laws and regulations could limit the legal protections available to you and us.” These risks could result in a material adverse change in our operations and the value of our ADSs, significantly limit or completely hinder our ability to continue to offer securities to investors, or cause the value of such securities to significantly decline or be worthless. For a detailed description of risks related to doing business in China, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China.” 4 Table of Contents Permissions Required from the PRC Authorities for Our Operations We conduct our business in China through our subsidiaries and the consolidated affiliated entities in China. Our operations in China are governed by PRC laws and regulations. After consulting our PRC legal counsel, Fangda Partners, we believe, as of the date of this annual report, except as otherwise stated in “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—We may be adversely affected by the complexity, uncertainties and changes in PRC regulations of internet and related business and companies,” our PRC subsidiaries and the VIE have obtained all the requisite licenses and permits from the PRC government authorities for the business operations of our PRC subsidiaries and the VIE in China, including, among others, Value-Added Telecommunication Business Operating License issued by the local bureau of the Ministry of Industry and Information Technology, Food Business License issued by Jizhou Branch of Tianjin Administration for Market Regulation, Filing Certificates for Operation of Prepacked Food issued by Xuanwu Branch of Nanjing Administration for Market Regulation, Travel Agency Business Licenses issued by the local bureaus of and/or the Ministry of Culture and Tourism, approvals for Operation of Small Credit Business issued by the Guangzhou Municipal Bureau of Finance, Insurance Intermediary License issued by the local bureau of the National Financial Regulatory Administration, and Hotel Hygiene License issued by the local bureau of the National Health Commission. Our PRC subsidiaries, the VIE and the VIE’s subsidiaries have not been denied any permission or approval by any PRC authority as of the date of this annual report. Given the uncertainties of interpretation and implementation of relevant laws and regulations and the enforcement practice by relevant government authorities, we may be required to obtain additional licenses, permits, filings or approvals for the functions and services of our platform in the future. If our PRC subsidiaries, the VIE or the VIE’s subsidiaries do not receive or maintain any necessary permissions or approvals, inadvertently conclude that such permissions or approvals are not required, or if applicable laws, regulations, or interpretations change and we are required to obtain such permissions or approvals in the future, we cannot assure you that we will be able to obtain the necessary permissions or approvals in a timely manner, or at all, and such approvals may be rescinded even if obtained. Any such circumstance could subject us to penalties, including fines, suspension of business and revocation of required licenses, significantly limit or completely hinder our ability to continue to offer securities to investors and cause the value of such securities to significantly decline or be worthless. For more detailed information, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—We may be adversely affected by the complexity, uncertainties and changes in PRC regulations of internet and related business and companies.” Furthermore, in connection with our previous issuance of securities to foreign investors, under the currently effective PRC laws and regulations, as of the date of this annual report, we are not aware of, after consulting our PRC legal counsel, Fangda Partners, any PRC laws or regulations which explicitly require us to obtain any permission from or complete any filing with the CSRC or go through a cybersecurity review by the Cyberspace Administration of China, and we, our PRC subsidiaries and the VIE, (i) have not received any requirement from competent PRC authorities to obtain permissions from the CSRC, (ii) have not received any requirement from competent PRC authorities to go through cybersecurity review by the Cyberspace Administration of China, and (iii) have not received or were denied such requisite permissions by any PRC authority. However, the PRC government has recently indicated an intent to exert more oversight and control over offerings that are conducted overseas and/or foreign investment in China-based issuers. For more detailed information, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The approval of or filing with the CSRC or other PRC government authorities may be required in connection with our offshore offerings under PRC law, and, if required, we cannot predict whether or for how long we will be able to obtain such approval or complete such filing.” 5 Table of Contents The Holding Foreign Companies Accountable Act Pursuant to the Holding Foreign Companies Accountable Act, or the HFCAA, if the Securities and Exchange Commission, or the SEC, determines that we have filed audit reports issued by a registered public accounting firm that has not been subject to inspections by the Public Company Accounting Oversight Board, or the PCAOB, for two consecutive years, the SEC will prohibit our shares or the ADSs from being traded on a national securities exchange or in the over-the-counter trading market in the United States. On December 16, 2021, the PCAOB issued a report to notify the SEC of its determination that the PCAOB was unable to inspect or investigate completely registered public accounting firms headquartered in mainland China and Hong Kong, including our auditor. In May 2022, the SEC conclusively listed us as a Commission-Identified Issuer under the HFCAA following the filing of our annual report on Form 20-F for the fiscal year ended December 31, 2021. On December 15, 2022, the PCAOB issued a report that vacated its December 16, 2021 determination and removed mainland China and Hong Kong from the list of jurisdictions where it is unable to inspect or investigate completely registered public accounting firms. As of the date of this annual report, the PCAOB has not issued any new determination that it is unable to inspect or investigate completely registered public accounting firms headquartered in any jurisdiction. For this reason, we were not identified as a Commission-Identified Issuer under the HFCAA after we filed our annual report on Form 20-F for the fiscal year ended December 31, 2023, 2024 or 2025, and we do not expect to be identified as a Commission-Identified Issuer under the HFCAA after we file this annual report on Form 20-F for the fiscal year ended December 31, 2025. Each year, the PCAOB will determine whether it can inspect and investigate completely audit firms in mainland China and Hong Kong, among other jurisdictions. If the PCAOB determines in the future that it no longer has full access to inspect and investigate completely accounting firms in mainland China and Hong Kong and we continue to use an accounting firm headquartered in one of these jurisdictions to issue an audit report on our financial statements filed with the SEC, we would be identified as a Commission-Identified Issuer following the filing of the annual report on Form 20-F for the relevant fiscal year. There can be no assurance that we would not be identified as a Commission-Identified Issuer for any future fiscal year, and if we were so identified for two consecutive years, we would become subject to the prohibition on trading under the HFCAA. For more details, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The PCAOB had historically been unable to inspect our auditor in relation to their audit work performed for our financial statements and the inability of the PCAOB to conduct inspections of our auditor in the past has deprived our investors with the benefits of such inspections” and “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—Our ADSs may be prohibited from trading in the United States under the HFCAA in the future if the PCAOB is unable to inspect or investigate completely auditors located in China. The delisting of the ADSs, or the threat of their being delisted, may materially and adversely affect the value of your investment.” Cash Flows through Our Organization Tuniu Corporation is a holding company with no operations of its own. We conduct our business in China through our subsidiaries and the consolidated affiliated entities in China. As a result, although other means are available for us to obtain financing at the holding company level, Tuniu Corporation’s ability to pay dividends to the shareholders and to service any debt it may incur may depend upon dividends paid by our PRC subsidiaries and license and service fees paid by the VIE. If any of our subsidiaries incurs debt on its own behalf in the future, the instruments governing such debt may restrict its ability to pay dividends to Tuniu Corporation. In addition, our PRC subsidiaries are permitted to pay dividends to Tuniu Corporation only out of their retained earnings, if any, as determined in accordance with PRC accounting standards and regulations. Further, our PRC subsidiaries and VIE are required to make appropriations to certain statutory reserve funds or may make appropriations to certain discretionary funds, which are not distributable as cash dividends except in the event of a solvent liquidation of the companies. For more details, see “Item 5. Operating and Financial Review and Prospects—B. Liquidity and Capital Resources—Holding Company Structure.” 6 Table of Contents Under PRC laws and regulations, our PRC subsidiaries and the VIE are subject to certain restrictions with respect to paying dividends or otherwise transferring any of their net assets to us. Remittance of dividends by a wholly foreign-owned enterprise out of mainland China is also subject to examination by the banks designated by the State Administration of Foreign Exchange, or SAFE. Our PRC subsidiaries have not paid dividends and will not be able to pay dividends until they generate accumulated profits and meet the requirements for statutory reserve funds. Furthermore, cash transfers from our PRC subsidiaries and the consolidated affiliated entities to entities outside of mainland China are subject to PRC governmental control on currency conversion. As a result, the funds in our PRC subsidiaries or the consolidated affiliated entities in mainland China may not be available to fund operations or for other use outside of mainland China due to the interventions in, or the imposition of restrictions and limitations on, the ability of our holding company, our subsidiaries, or the consolidated affiliated entities by the PRC government on such currency conversion. As of the date of this annual report, there is no equivalent or similar restriction or limitation in Hong Kong or Macau on cash transfers in, or out of, our Hong Kong entities. However, if certain restrictions or limitations in mainland China were to become applicable to cash transfers in and out of Hong Kong entities in the future, the funds in our Hong Kong entities may not be available to fund operations or for other use outside of Hong Kong. For risks relating to the fund flows of our operations in China, see “Item 3. Key Information—Risk Factors—Risks Related to Doing Business in China—Our subsidiaries and the consolidated affiliated entities in China are subject to restrictions on paying dividends or making other payments to our holding company, which may restrict our ability to satisfy our liquidity requirements” and “Item 3. Key Information—Risk Factors—Risks Related to Doing Business in China—PRC regulation of direct investment and loans by offshore holding companies to PRC entities and governmental control of currency conversion may delay or limit us from using the proceeds of our financing activities, or making additional capital contributions or loans to our PRC subsidiaries and the consolidated affiliated entities, which could materially and adversely affect our liquidity and our ability to fund and expand our business.” For purposes of illustration, the following discussion reflects the hypothetical taxes that might be required to be paid within China, assuming that: (i) we have taxable earnings, and (ii) we determine to pay dividends in the future. ​ ​ ​ ​ ​ ​ ​ ​ Tax calculation (1) Hypothetical pre-tax earnings 100 % Tax on earnings at statutory rate of 25% (2) (25) % Net earnings available for distribution 75 % Withholding tax at standard rate of 10% (3) (7.5) % Net distribution to Parent/Shareholders 67.5 % Notes: (1) For purposes of this example, the tax calculation has been simplified. The hypothetical book pre-tax earnings amount, not considering timing differences, is assumed to equal taxable income in China. (2) Certain of our subsidiaries qualify for a 15% preferential income tax rate in China. For purposes of this hypothetical example, the table above reflects a maximum tax scenario under which the full statutory rate would be effective. (3) The PRC Enterprise Income Tax Law imposes a withholding income tax of 10% on dividends distributed by a foreign invested enterprise to its immediate holding company outside of mainland China. A lower withholding income tax rate of 5% is applied if the foreign invested enterprise’s immediate holding company is registered in Hong Kong or other jurisdictions that have a tax treaty arrangement with mainland China, subject to a qualification review at the time of the distribution. For purposes of this hypothetical example, the table above assumes a maximum tax scenario under which the full withholding tax would be applied. 7 Table of Contents Under PRC law, Tuniu Corporation may provide funding to our PRC subsidiaries only through capital contributions or loans, and to the VIE only through loans, subject to satisfaction of applicable government registration and approval requirements. For the years ended December 31, 2023, 2024 and 2025, Tuniu Corporation did not make any capital contribution to our intermediate holding companies and subsidiaries. For the years ended December 31, 2023, 2024 and 2025, our intermediate holding companies and subsidiaries and the consolidated affiliated entities received no capital contribution or loan investment from Tuniu Corporation. The VIE and its subsidiaries repaid financing from external banks for their operations with the amount of RMB21.0 million and nil for the year ended December 31, 2023 and 2025, respectively, and obtained financing with the amount of RMB1.0 million for the year ended December 31, 2024. In March 2025, our board of directors declared a cash dividend of US$0.012 per ordinary share to holders of ordinary shares and holders of ADSs of record as of the close of business on March 27, 2025. In March 2026, our board of directors approved a three-year shareholder return plan, under which we may, during the three-year period from the date of approval, (i) declare and distribute cash dividends of no more than US$30 million and (ii) repurchase of our Class A Ordinary Shares and/or ADSs of no more than US$20 million. Under the shareholder return plan, our board of directors reserves the discretion to determine the form, timing, and amount of the capital return measures based on our financial condition, results of operations, capital requirements and other relevant factors. In the same month, pursuant to this shareholder return plan, our board of directors declared a cash dividend of US$0.0399 per ordinary share to holders of ordinary shares and holders of ADSs of record as of the close of business on May 4, 2026. See “Item 8. Financial Information—A. Consolidated Statements and Other Financial Information—Dividend Policy.” For PRC and United States federal income tax considerations of an investment in our ADSs, see “Item 10. Additional Information—E. Taxation.” Financial Information Related to the VIE The following table presents the condensed consolidating schedules of financial position for the VIE and other entities as of the dates presented. ​ 8 Table of Contents Selected Condensed Consolidating Balance Sheets Information ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of December 31, 2024 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ ​ ​ (in RMB thousands) ASSETS ​ ​ ​ ​ ​ ​ Current assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents 12,592 351,538 1,014 99,860 — 465,004 Restricted cash — 13,304 — 12,757 — 26,061 Short-term investments — 212,070 1,041 219,712 — 432,823 Accounts receivable, net — 14,789 — 28,524 — 43,313 Intercompany loan receivables (1) ​ — ​ 181,090 ​ — ​ — ​ (181,090) ​ — Amounts due from entities within Tuniu (2) 7,109,706 4,446,086 110,180 289,753 (11,955,725) — Amounts due from related parties — — — 752 — 752 Prepayments and other current assets, net (including loan receivable from a related party, net amounting to RMB10,173 as of December 31, 2024) 147 238,714 2,350 10,820 (16,588) 235,443 Total current assets 7,122,445 5,457,591 114,585 662,178 (12,153,403) 1,203,396 Non-current assets: ​ ​ ​ ​ ​ ​ Long-term investments (3) — 258,728 — 363,046 (87,733) 534,041 Property and equipment, net — 17,829 540 15,806 (1,326) 32,849 Intangible assets, net (5) — 43,045 — 20,382 (41,217) 22,210 Land use right, net — 88,467 — — — 88,467 Operating lease right-of-use assets, net — 4 — 9,262 — 9,266 Other non-current assets, net — 5,990 145 13,073 — 19,208 Total non-current assets — 414,063 685 421,569 (130,276) 706,041 Total assets 7,122,445 5,871,654 115,270 1,083,747 (12,283,679) 1,909,437 LIABILITIES AND EQUITY ​ ​ ​ ​ ​ ​ Current liabilities: ​ ​ ​ ​ ​ ​ Short-term borrowings (1) — 192,510 — — (192,474) 36 Accounts and notes payable — 151,901 — 138,211 — 290,112 Amounts due to entities within Tuniu (2) — 6,904,236 13,934 5,037,555 (11,955,725) — Amounts due to related parties — — — 3,121 — 3,121 Salary and welfare payable — 4,989 1,532 16,627 — 23,148 Taxes payable — 2,473 429 2,158 — 5,060 Advances from customers — 9,634 — 242,721 (5,204) 247,151 Operating lease liabilities, current — 584 — 2,410 — 2,994 Accrued expenses and other current liabilities 661 42,886 94 278,393 — 322,034 Total current liabilities 661 7,309,213 15,989 5,721,196 (12,153,403) 893,656 Non-current liabilities: ​ ​ ​ ​ ​ ​ Operating lease liabilities, non-current — 295 — 1,385 — 1,680 Deferred tax liabilities — 343 — 4,808 — 5,151 Investment deficit in subsidiaries and the consolidated affiliated entities (4) 6,041,193 4,512,910 4,569,648 — (15,123,751) — Total non-current liabilities 6,041,193 4,513,548 4,569,648 6,193 (15,123,751) 6,831 Total liabilities 6,041,854 11,822,761 4,585,637 5,727,389 (27,277,154) 900,487 Equity ​ ​ ​ ​ ​ ​ Total Tuniu Corporation shareholders’ equity 1,080,591 (6,041,193) (4,470,367) (4,569,648) 15,081,208 1,080,591 Noncontrolling interests (3) — 90,086 — (73,994) (87,733) (71,641) Total equity 1,080,591 (5,951,107) (4,470,367) (4,643,642) 14,993,475 1,008,950 Total liabilities and equity 7,122,445 5,871,654 115,270 1,083,747 (12,283,679) 1,909,437 ​ ​ 9 Table of Contents ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of December 31, 2025 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ ​ ​ (in RMB thousands) ASSETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Current assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents 94,162 ​ 13,384 ​ 419 ​ 99,263 ​ — ​ 207,228 Restricted cash — ​ 868 ​ — ​ 9,354 ​ — ​ 10,222 Short-term investments — ​ 491,208 ​ 1,647 ​ 360,849 ​ — ​ 853,704 Accounts receivable, net — ​ 2,860 ​ 98 ​ 63,876 ​ — ​ 66,834 Intercompany loan receivables (1) ​ — ​ 181,090 ​ — ​ — ​ (181,090) ​ — Amounts due from entities within Tuniu (2) 6,873,533 ​ 4,795,988 ​ 115,177 ​ 237,476 ​ (12,022,174) ​ — Amounts due from related parties — ​ — ​ — ​ 1,293 ​ — ​ 1,293 Prepayments and other current assets, net (including loan receivable from a related party, net amounting to RMB5,396 as of December 31, 2025)(1) 12,618 ​ 151,183 ​ 2,155 ​ 5,702 ​ (14,100) ​ 157,558 Total current assets 6,980,313 ​ 5,636,581 ​ 119,496 ​ 777,813 ​ (12,217,364) ​ 1,296,839 Non-current assets: ​ ​ ​ ​ ​ ​ Long-term investments (3) — ​ 177,516 ​ — ​ 164,429 ​ (114,933) ​ 227,012 Property and equipment, net — ​ 5,556 ​ 572 ​ 12,732 ​ — ​ 18,860 Intangible assets, net(5) — ​ 26,969 ​ — ​ 18,293 ​ (25,617) ​ 19,645 Operating lease right-of-use assets, net — ​ — ​ — ​ 6,873 ​ — ​ 6,873 Other non-current assets, net — ​ 18,009 ​ 1 ​ 12,744 ​ — ​ 30,754 Total non-current assets — ​ 228,050 ​ 573 ​ 215,071 ​ (140,550) ​ 303,144 Total assets 6,980,313 ​ 5,864,631 ​ 120,069 ​ 992,884 ​ (12,357,914) ​ 1,599,983 LIABILITIES AND EQUITY ​ ​ ​ ​ ​ ​ Current liabilities: ​ ​ ​ ​ ​ ​ Short-term borrowings (1) — ​ 195,225 ​ — ​ — ​ (195,190) ​ 35 Accounts and notes payable — ​ 73 ​ — ​ 219,367 ​ — ​ 219,440 Amounts due to entities within Tuniu (2) — ​ 7,034,539 ​ 13,934 ​ 4,973,701 ​ (12,022,174) ​ — Amounts due to related parties — ​ — ​ — ​ 980 ​ — ​ 980 Salary and welfare payable — ​ 3,596 ​ 1,506 ​ 14,492 ​ — ​ 19,594 Taxes payable — ​ 2,017 ​ 492 ​ 1,568 ​ — ​ 4,077 Advances from customers — ​ 1,806 ​ — ​ 182,655 ​ — ​ 184,461 Operating lease liabilities, current — ​ — ​ — ​ 3,340 ​ — ​ 3,340 Accrued expenses and other current liabilities 1,220 ​ 5,564 ​ 80 ​ 197,524 ​ — ​ 204,388 Total current liabilities 1,220 ​ 7,242,820 ​ 16,012 ​ 5,593,627 ​ (12,217,364) ​ 636,315 Non-current liabilities: ​ ​ ​ ​ ​ ​ Operating lease liabilities, non-current — ​ 603 ​ — ​ 420 ​ — ​ 1,023 Deferred tax liabilities — ​ 229 ​ — ​ 4,305 ​ — ​ 4,534 Investment deficit in subsidiaries and the consolidated affiliated entities (4) 5,948,792 ​ 4,451,287 ​ 4,529,727 ​ — ​ (14,929,806) ​ — Total non-current liabilities 5,948,792 ​ 4,452,119 ​ 4,529,727 ​ 4,725 ​ (14,929,806) ​ 5,557 Total liabilities 5,950,012 ​ 11,694,939 ​ 4,545,739 ​ 5,598,352 ​ (27,147,170) ​ 641,872 Equity ​ ​ ​ ​ ​ ​ Total Tuniu Corporation shareholders’ equity 1,030,301 ​ (5,948,792) ​ (4,425,670) ​ (4,529,727) ​ 14,904,189 ​ 1,030,301 Noncontrolling interests (3) — ​ 118,484 ​ — ​ (75,741) ​ (114,933) ​ (72,190) Total equity 1,030,301 ​ (5,830,308) ​ (4,425,670) ​ (4,605,468) ​ 14,789,256 ​ 958,111 Total liabilities and equity 6,980,313 ​ 5,864,631 ​ 120,069 ​ 992,884 ​ (12,357,914) ​ 1,599,983 ​ ​ 10 Table of Contents Selected Condensed Consolidating Statements of Comprehensive Loss Information ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, 2023 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ ​ ​ (in RMB thousands) Revenues: ​ ​ ​ ​ ​ ​ Third-party revenues — 96,305 — ​ 344,965 ​ — ​ 441,270 Intra-Tuniu revenues (5) — 24,017 13,357 ​ 5,337 ​ (42,711) ​ — Total revenues — 120,322 13,357 ​ 350,302 ​ (42,711) ​ 441,270 Total costs and expenses (5) (3,790) (229,113) (17,546) ​ (352,779) ​ 60,094 ​ (543,134) Loss from operations (3,790) (108,791) (4,189) ​ (2,477) ​ 17,383 ​ (101,864) Other income/(expenses) (5) 7,272 38,186 298 ​ (42,968) ​ — ​ 2,788 Investment in loss from subsidiaries and the consolidated affiliated entities (4) (102,773) (31,015) (44,507) ​ — ​ 178,295 ​ — Loss before income tax expense (99,291) (101,620) (48,398) ​ (45,445) ​ 195,678 ​ (99,076) Income tax (expense)/benefit — (2,046) — ​ 605 ​ — ​ (1,441) Equity in income/(loss) of unrelated affiliates — 10 — ​ (590) ​ — ​ (580) Net loss (99,291) (103,656) (48,398) ​ (45,430) ​ 195,678 ​ (101,097) Net loss attributable to noncontrolling interests — (883) — ​ (923) ​ — ​ (1,806) Net loss attributable to Tuniu Corporation (99,291) (102,773) (48,398) ​ (44,507) ​ 195,678 ​ (99,291) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, 2024 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ ​ ​ (in RMB thousands) Revenues: ​ ​ ​ ​ ​ ​ Third-party revenues — 98,144 ​ — ​ 415,478 ​ — ​ 513,622 Intra-Tuniu revenues (5) — 32,952 ​ 17,320 ​ 3,816 ​ (54,088) ​ — Total revenues — 131,096 ​ 17,320 ​ 419,294 ​ (54,088) ​ 513,622 Total costs and expenses (5) (1,590) (268,579) ​ (17,003) ​ (335,987) ​ 172,797 ​ (450,362) (Loss)/ income from operations (1,590) (137,483) ​ 317 ​ 83,307 ​ 118,709 ​ 63,260 Other income/(expenses) (5) 13,513 13,761 ​ 25 ​ 96,927 ​ (104,436) ​ 19,790 Investment in income from subsidiaries and the consolidated affiliated entities (4) 65,251 186,999 ​ 172,384 ​ — ​ (424,634) ​ — Income before income tax expense 77,174 63,277 ​ 172,726 ​ 180,234 ​ (410,361) ​ 83,050 Income tax (expense)/benefit — (1,460) ​ — ​ 623 ​ — ​ (837) Equity in income of unrelated affiliates — 1,140 ​ — ​ 346 ​ — ​ 1,486 Net income 77,174 62,957 ​ 172,726 ​ 181,203 ​ (410,361) ​ 83,699 Net (loss)/ income attributable to noncontrolling interests — (2,294) ​ — ​ 8,819 ​ — ​ 6,525 Net income attributable to Tuniu Corporation 77,174 65,251 ​ 172,726 ​ 172,384 ​ (410,361) ​ 77,174 ​ ​ 11 Table of Contents ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, 2025 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ ​ (in RMB thousands) Revenues: ​ ​ ​ ​ ​ ​ Third-party revenues — ​ 53,406 ​ — ​ 524,568 ​ — ​ 577,974 Intra-Tuniu revenues (5) — ​ 40,273 ​ 20,635 ​ 5,460 ​ (66,368) ​ — Total revenues — ​ 93,679 ​ 20,635 ​ 530,028 ​ (66,368) ​ 577,974 Total costs and expenses (5) (4,943) ​ (100,233) ​ (15,697) ​ (525,234) ​ 79,368 ​ (566,739) (Loss)/ income from operations (4,943) ​ (6,554) ​ 4,938 ​ 4,794 ​ 13,000 ​ 11,235 Other income/(expenses) (5) (561) ​ (11,785) ​ (35) ​ 31,649 ​ — ​ 19,268 Investment in income from subsidiaries and the consolidated affiliated entities (4) 36,629 ​ 57,516 ​ 39,613 ​ — ​ (133,758) ​ — Income before income tax expense 31,125 ​ 39,177 ​ 44,516 ​ 36,443 ​ (120,758) ​ 30,503 Income tax (expense)/benefit — ​ (1,227) ​ — ​ (198) ​ — ​ (1,425) Equity in income of unrelated affiliates — ​ (122) ​ — ​ 701 ​ — ​ 579 Net income 31,125 ​ 37,828 ​ 44,516 ​ 36,946 ​ (120,758) ​ 29,657 Net (loss)/ income attributable to noncontrolling interests — ​ 1,199 ​ — ​ (2,667) ​ — ​ (1,468) Net income attributable to Tuniu Corporation 31,125 ​ 36,629 ​ 44,516 ​ 39,613 ​ (120,758) ​ 31,125 ​ Selected Condensed Consolidating Cash Flows Information ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, 2023 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ (in RMB thousands) Net cash provided by/(used in) transactions within entities within Tuniu ​ — ​ 3,173 ​ 18,989 ​ (22,162) ​ — ​ — Net cash provided by/(used in) transactions with external parties ​ 313 ​ (75,942) ​ (25,629) ​ 356,336 ​ — ​ 255,078 Net cash provided by/(used in) operating activities 313 ​ (72,769) ​ (6,640) ​ 334,174 ​ — ​ 255,078 Receipts of repayment from entities within Tuniu, net — ​ 88,432 ​ 4,194 ​ — ​ (92,626) ​ — Purchase of intangible assets with entities within Tuniu — ​ — ​ — ​ — ​ — ​ — Other investing activities ​ (450) ​ 83,623 ​ 2,700 ​ (67,183) ​ — ​ 18,690 Net cash (used in)/provided by investing activities (450) ​ 172,055 ​ 6,894 ​ (67,183) ​ (92,626) ​ 18,690 Borrowings under loan from entities within Tuniu, net — ​ — ​ — ​ (92,626) ​ 92,626 ​ — Other financing activities 9 ​ (1,588) ​ — ​ (21,000) ​ — ​ (22,579) Net cash provided by/(used in) financing activities 9 ​ (1,588) ​ — ​ (113,626) ​ 92,626 ​ (22,579) ​ ​ 12 Table of Contents ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, 2024 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ ​ ​ (in RMB thousands) Net cash provided by/(used in) transactions within entities within Tuniu ​ — ​ 26,492 ​ 18,359 ​ (44,851) ​ — ​ — Net cash provided by/(used in) transactions with external parties ​ 6,015 ​ (62,236) ​ (18,168) ​ 170,670 ​ — ​ 96,281 Net cash provided by/(used in) operating activities 6,015 ​ (35,744) ​ 191 ​ 125,819 ​ — ​ 96,281 Receipts of repayment from entities within Tuniu, net — ​ 105,982 ​ 690 ​ — ​ (106,672) ​ — Purchase of intangible assets with entities within Tuniu — ​ — ​ — ​ — ​ — ​ — Other investing activities 2,725 ​ (36,566) ​ (1,041) ​ 61,543 ​ — ​ 26,661 Net cash provided by/(used in) investing activities 2,725 ​ 69,416 ​ (351) ​ 61,543 ​ (106,672) ​ 26,661 Borrowings under loan from entities within Tuniu, net 47,672 ​ — ​ — ​ (154,344) ​ 106,672 ​ — Other financing activities (44,862) ​ (30,117) ​ — ​ 1,000 ​ — ​ (73,979) Net cash provided by/(used in) financing activities 2,810 ​ (30,117) ​ — ​ (153,344) ​ 106,672 ​ (73,979) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, 2025 ​ ​ ​ ​ ​ ​ Primary ​ VIE and ​ ​ ​ ​ ​ ​ Tuniu ​ Other ​ Beneficiary of ​ its ​ Eliminating ​ Consolidated ​ ​ ​ ​ Corporation ​ ​ ​ Subsidiaries ​ ​ ​ VIE ​ ​ ​ Subsidiaries ​ ​ ​ Adjustments ​ ​ ​ Totals ​ ​ ​ ​ (in RMB thousands) Net cash provided by/(used in) transactions within entities within Tuniu ​ — ​ 34,924 ​ 20,524 ​ (55,448) ​ — ​ — Net cash provided by/(used in) transactions with external parties ​ (20,469) ​ (276,557) ​ (15,722) ​ 203,680 ​ — ​ (109,068) Net cash provided by/(used in) operating activities (20,469) ​ (241,633) ​ 4,802 ​ 148,232 ​ — ​ (109,068) Receipts of repayment from entities within Tuniu, net — ​ 16,369 ​ (4,791) ​ — ​ (11,578) ​ — Other investing activities 108,951 ​ 37,185 ​ (606) ​ (140,654) ​ — ​ 4,876 Net cash provided by/(used in) investing activities 108,951 ​ 53,554 ​ (5,397) ​ (140,654) ​ (11,578) ​ 4,876 Borrowings under loan from entities within Tuniu, net — ​ — ​ — ​ (11,578) ​ 11,578 ​ — Other financing activities (6,210) ​ (153,877) ​ — ​ — ​ — ​ (160,087) Net cash provided by/(used in) financing activities (6,210) ​ (153,877) ​ — ​ (11,578) ​ 11,578 ​ (160,087) (1) It represents the elimination of intercompany loan provided by other subsidiaries to the VIE and its subsidiaries. (2) It represents the elimination of the intercompany balances among Tuniu Corporation, other subsidiaries, primary beneficiary of the VIE, and the VIE and its subsidiaries. (3) The VIE invested in a subsidiary of other subsidiaries and measured at cost, and such investment is eliminated with noncontrolling interests of other subsidiaries. (4) It represents the elimination of the investments among Tuniu Corporation, other subsidiaries, primary beneficiary of the VIE, and the VIE and its subsidiaries. (5) It represents the elimination of the intercompany transactions at the consolidation level, as follows: Charges to the VIE (i) Technology consulting service fees, platform service fees and group management fees charged by other subsidiaries and the primary beneficiary of the VIE to the VIE and its subsidiaries, in aggregate amounting to RMB41.3 million, RMB48.2 million and RMB58.9 million for the years ended 2023, 2024 and 2025, respectively. These charges are recognized as operating expenses by the VIE and its subsidiaries. 13 Table of Contents (ii) Revenue was recognized by other subsidiaries for interest on loans to the VIE and its subsidiaries, in the amounts of nil, nil and nil for the years ended 2023, 2024 and 2025, respectively. These charges are recognized as interest expense by the VIE and its subsidiaries. Charges by the VIE (i) Royalty fees charged by the VIE and its subsidiaries to other subsidiaries and the primary beneficiary of the VIE for the usage of software owned by the VIE and its subsidiaries in the amounts of RMB5.3 million, RMB3.8 million and RMB5.5 million for the years ended 2023, 2024 and 2025, respectively. These charges are recognized as operating expenses by the other subsidiaries and the primary beneficiary of the VIE. Charges between other entities (i) Group management fees charged by the primary beneficiary of the VIE to other subsidiaries in the Tuniu. Transfers of Cash Within Tuniu Transfer of cash do not necessarily equal amounts charged, due to the timing of payments. The following is a summary of cash transfers that have occurred between our subsidiaries and the VIE and its subsidiaries (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of December 31, ​ ​ 2023 ​ 2024 ​ 2025 ​ ​ ​ ​ RMB ​ ​ ​ RMB ​ ​ ​ RMB Cash paid by our subsidiaries to the VIE and its subsidiaries for royalties 7,731 ​ 4,045 ​ 5,460 Cash paid by the VIE and its subsidiaries to our subsidiaries under service agreements ​ (11,604) ​ (32,780) ​ (42,389) Cash paid by the VIE and its subsidiaries to our subsidiaries for intra-Tuniu financing (92,626) ​ (154,344) ​ (11,578) ​ A.[Reserved] B.Capitalization and Indebtedness Not applicable. C.Reasons for the Offer and Use of Proceeds Not applicable. D.Risk Factors Summary of Risk Factors Investing in our ADSs involves significant risks. You should carefully consider all of the information in this annual report before making an investment in our ADSs. Below is a summary of material risks we face, organized under relevant headings. The operational risks associated with being based in and having operations in mainland China could also apply to operations in Hong Kong and Macau. While entities and businesses in Hong Kong and Macau operate under different sets of laws from mainland China, the legal risks associated with being based in and having operations in mainland China could apply to our operations in Hong Kong and Macau, if the laws applicable to mainland China become applicable to entities and businesses in Hong Kong and Macau in the future. These risks are discussed more fully in Item 3. Key Information—D. Risk Factors. 14 Table of Contents Risks Related to Our Corporate Structure ● Tuniu Corporation is a Cayman Islands holding company with no equity ownership in the VIE, and we conduct our operations in China primarily through (i) our PRC subsidiaries and (ii) the VIE with which we have maintained contractual arrangements. Holders of our ADSs hold equity interest in Tuniu Corporation, our Cayman Islands holding company, and do not have direct or indirect equity interest in the VIE. If the PRC government finds that the agreements that establish the structure for operating some of our business operations in China do not comply with PRC regulations relating to the industries we operate in, or if these regulations or the interpretation of existing regulations change in the future, we and the VIE could be subject to severe penalties, or be forced to relinquish our interest in those operations. Our holding company in the Cayman Islands, the VIE, and investors of Tuniu face uncertainty about potential future actions by the PRC government that could affect the enforceability of the contractual arrangements with the VIE and, consequently, significantly affect the financial performance of the VIE and our company as a whole. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—We rely on contractual arrangements with Nanjing Tuniu and its shareholders for the operation of our business, which may not be as effective as direct ownership. If Nanjing Tuniu or its shareholders fail to perform their obligations under these contractual arrangements, we may have to resort to litigation or arbitration to enforce our rights, which may be time-consuming, unpredictable, expensive and damaging to our operations and reputation. If we are unable to direct the activities of and derive economic benefits from the VIE, we would not be able to continue to consolidate the financial results of the consolidated affiliated entities with our financial results.” ● Substantial uncertainties and restrictions exist with respect to the interpretation and application of PRC laws and regulations relating to restrictions on foreign investment in value-added telecommunications and travel companies in China. Consequently, we conduct our businesses that are subject to restrictions under PRC value-added telecommunications laws and regulations primarily through the VIE. If the VIE structure, the businesses of our company, our PRC subsidiaries or the consolidated affiliated entities are found to be in violation of any existing or future PRC laws or regulations, or if we fail to obtain or maintain any of the required permits or approvals, we could be subject to severe penalties, including but not limited to revoking licenses necessary to conduct our business, shutting down of our online platform, discontinuing or placing restrictions or onerous conditions on our operations and requiring us to undergo a costly and disruptive restructuring, which would in turn materially and adversely affect our business, financial condition and results of operations. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—Substantial uncertainties and restrictions exist with respect to the interpretation and application of PRC laws and regulations relating to restrictions on foreign investment in value-added telecommunications and travel companies in China. If the PRC government determines that the contractual arrangements constituting part of the VIE structure do not comply with PRC laws and regulations, we could be subject to severe penalties, including shutting down of our online platform, and our ADSs may decline in value or become worthless.” ● Substantial uncertainties exist with respect to the interpretation and implementation of adopted PRC Foreign Investment Law and its implementation rules and how they may impact the viability of our current corporate structure, corporate governance and business operations. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—Substantial uncertainties exist with respect to the interpretation and implementation of adopted PRC Foreign Investment Law and its implementation rules and how they may impact the viability of our current corporate structure, corporate governance and business operations.” Risks Related to Doing Business in China ● Risks and uncertainties arising from the legal system in China, including risks and uncertainties regarding the enforcement of laws and quickly evolving rules and regulations in China, could result in a material adverse change in our operations and the value of our ADSs. For more details, see “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—Uncertainties in the interpretation and enforcement of PRC laws and regulations could limit the legal protections available to you and us” and “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—We may be adversely affected by the complexity, uncertainties and changes in PRC regulations of internet and related business and companies.” The approval of or filing with the CSRC or other PRC government authorities may be required in connection with our offshore offerings under PRC law, and, if required, we cannot predict whether or for how long we will be able to obtain such approval or complete such filing. Any failure to obtain or delay in obtaining such approval for our offshore offerings, or a rescission of obtained approval, would subject us to sanctions imposed by the CSRC or other PRC government authorities. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The approval of or filing with the CSRC or other PRC government authorities may be required in connection with our offshore offerings under PRC law, and, if required, we cannot predict whether or for how long we will be able to obtain such approval or complete such filing.” 15 Table of Contents ● Our ADSs may be prohibited from trading in the United States under the HFCAA in the future if the PCAOB is unable to inspect or fully investigate auditors located in China. The PCAOB had historically been unable to inspect our auditor in relation to their audit work performed for our financial statements and the inability of the PCAOB to conduct inspections of our auditor in the past has deprived our investors with the benefits of such inspections. The delisting of our ADSs, or the threat of their being delisted, may materially and adversely affect the value of your investment. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The PCAOB had historically been unable to inspect our auditor in relation to their audit work performed for our financial statements and the inability of the PCAOB to conduct inspections of our auditor in the past has deprived our investors with the benefits of such inspections.” t and “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—Our ADSs may be prohibited from trading in the United States under the HFCAA in the future if the PCAOB is unable to inspect or investigate completely auditors located in China. The delisting of the ADSs, or the threat of their being delisted, may materially and adversely affect the value of your investment.” ● The PRC government’s significant authority in regulating our operations and its oversight and control over offerings conducted overseas by, and foreign investment in, China-based issuers could significantly limit or completely hinder our ability to offer or continue to offer securities to investors. Implementation of industry-wide regulations in this nature may cause the value of such securities to significantly decline. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—The PRC government’s significant oversight over our business operation could result in a material adverse change in our operations and the value of our ADSs.” ● PRC regulation of direct investment and loans by offshore holding companies to PRC entities and governmental control of currency conversion may delay or limit us from using the proceeds of our financing activities, or making additional capital contributions or loans to our PRC subsidiaries and the consolidated affiliated entities, which could materially and adversely affect our liquidity and our ability to fund and expand our business. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—PRC regulation of direct investment and loans by offshore holding companies to PRC entities and governmental control of currency conversion may delay or limit us from using the proceeds of our financing activities, or making additional capital contributions or loans to our PRC subsidiaries and the consolidated affiliated entities, which could materially and adversely affect our liquidity and our ability to fund and expand our business.” Risks Related to Our Business and Industry ● Declines or disruptions in the leisure travel industry may materially and adversely affect our business and results of operations. ● We face risks related to natural disasters and health epidemics. ● If we do not continue to provide competitive travel products and services, we may not be able to attract new customers or retain existing customers, and our business, financial condition and results of operations could suffer. ● Failure to maintain the quality of customer services could harm our reputation and our ability to retain existing customers and attract new customers, which may materially and adversely affect our business, financial condition and results of operations. ● We incurred losses in the past and may not be able to maintain profitability. ● We face intense competition and may not be able to compete successfully against existing and new competitors. ● Our business generates and processes a large amount of data, and we are required to comply with PRC and other applicable laws relating to privacy and cybersecurity. The improper use or disclosure of data could have a material and adverse effect on our business and prospects. ● If we are unable to maintain existing relationships with travel suppliers, or develop relationships with new travel suppliers on favorable terms or terms similar to those we currently have, our business and results of operations may suffer. ● We may be subject to legal or administrative proceedings regarding our travel products and services, information provided on our online platform or other aspects of our business operations, which may be time-consuming to defend and affect our reputation. 16 Table of Contents Risks Related to our ADSs and Class A Ordinary Shares ● Our ADSs may be delisted from the Nasdaq Global Market as a result of our failure of meeting the Nasdaq Global Market continued listing requirements. ● The trading price of our ADSs have fluctuated and may continue to be volatile regardless of our operating performance. ● Our dual class share structure with different voting rights will limit your ability to influence corporate matters and could discourage others from pursuing any change of control transactions that holders of our Class A ordinary shares and ADSs may view as beneficial. ● The sale or availability for sale of substantial amounts of our Class A ordinary shares and/or ADSs could adversely affect their market price. Risks Related to Our Corporate Structure Uncertainties and restrictions exist with respect to the interpretation and application of PRC laws and regulations relating to restrictions on foreign investment in value-added telecommunications and travel companies in China. If the PRC government determines that the contractual arrangements constituting part of the VIE structure do not comply with PRC laws and regulations, we could be subject to severe penalties, including shutting down of our online platform, and our ADSs may decline in value or become worthless. Foreign ownership of internet-based businesses is subject to significant restrictions under current PRC laws and regulations. The PRC government regulates internet access, the distribution of online information and the conduct of online commerce through strict business licensing requirements and other government regulations. These laws and regulations include limitations on foreign ownership in PRC companies that provide internet content distribution services. Specifically, foreign investors are prohibited from owning more than 50% of the equity interest in any PRC entity conducting value-added telecommunications business, with certain exceptions. Regulations on foreign investment in telecommunications business require foreign investors to set up foreign-invested telecom enterprises and obtain business operating licenses for internet content provision, or an ICP license, to conduct any value-added telecommunications business in China. A domestic company that holds an ICP license is prohibited from leasing, transferring or selling the license to foreign investors in any form, and from providing any assistance, including providing resources, sites or facilities, to foreign investors that conduct value-added telecommunications business illegally in China. Furthermore, the trademarks and domain names that are used in the value-added telecommunications business must be owned by the domestic ICP license holder or its shareholders. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Value-Added Telecommunication Services” and “—Foreign Investment in Value-Added Telecommunications Services.” We are a Cayman Islands company and our wholly owned PRC subsidiary, Beijing Tuniu, is a foreign invested enterprise. To comply with PRC laws and regulations, we conduct our business in China through a series of contractual arrangements entered into among Beijing Tuniu, Nanjing Tuniu, and the shareholders of Nanjing Tuniu. As a result of these contractual arrangements, we are able to direct the activities of and derive economic benefits from Nanjing Tuniu and its subsidiaries and consolidate their results of operations in our financial statements under U.S. GAAP. Nanjing Tuniu and its subsidiaries hold our ICP licenses, and own all the domain names used in our value-added telecommunications business. Nanjing Tuniu and its subsidiaries are also the owners of all the registered trademarks used in our value-added telecommunications business and are the applicants of all the applications for trademark registration we have made. See “Item 4. Information on the Company—C. Organizational Structure.” There is uncertainty as to how the aforementioned laws and regulations affect us as a result of our corporate structure and contractual arrangements. In the opinion of our PRC counsel, Fangda Partners, the organizational structure of Nanjing Tuniu, each of the shareholders’ voting rights agreement, powers of attorney, equity interest pledge agreement and purchase option agreement entered into among Beijing Tuniu, Nanjing Tuniu and the shareholders of Nanjing Tuniu, and the cooperation agreement between Beijing Tuniu and Nanjing Tuniu, which establish our contractual arrangement with Nanjing Tuniu and its shareholders, are valid, binding and enforceable in accordance with their terms. However, as of the date of this annual report, the legality and enforceability of our contractual arrangements, as a whole, have not been tested in any PRC court, and we cannot guarantee you that the contractual arrangements, as a whole, would ultimately be legal or enforceable if they were to be tested in a PRC court. We are also advised by our PRC counsel, Fangda Partners, that there are uncertainties regarding the interpretation and application of current or future PRC laws and regulations and there can be no assurance that the PRC government will ultimately take a view that is consistent with the opinion of our PRC counsel stated above. 17 Table of Contents If the VIE structure, contractual arrangements and business of our company, our PRC subsidiaries or the consolidated affiliated entities are found to be in violation of any existing or future PRC laws or regulations, or we fail to obtain or maintain any of the required permits or approvals, the relevant government authorities would have broad discretion in dealing with such violations, including levying fines, confiscating our income or the income of our PRC subsidiaries or the consolidated affiliated entities, revoking the business licenses or operating licenses of our PRC subsidiaries or the consolidated affiliated entities, shutting down our servers or blocking our online platform, discontinuing or placing restrictions or onerous conditions on our operations, requiring us to undergo a costly and disruptive restructuring, restricting or prohibiting our use of proceeds from our financing activities, such as our private placements, to finance our business and operations in China, and taking other regulatory or enforcement actions that could be harmful to our business. Any of these actions could cause significant disruption to our business operations and severely damage our reputation, which would in turn materially and adversely affect our business, financial condition and results of operations. If the PRC government determines that the contractual arrangements constituting part of the VIE structure do not comply with PRC laws and regulations, or if these regulations change or are interpreted differently in the future, our ADSs may decline in value or become worthless if we are unable to assert our contractual control rights over the assets of the VIE. If any of these occurrences result in our inability to direct the activities of any of the consolidated affiliated entities that most significantly impact its economic performance, and/or our failure to receive the economic benefits from any of the consolidated affiliated entities, we may not be able to consolidate the entity in our consolidated financial statements in accordance with U.S. GAAP. Uncertainties exist with respect to the interpretation and implementation of adopted PRC Foreign Investment Law and its implementation rules and how they may impact the viability of our current corporate structure, corporate governance and business operations. The “variable interest entity” structure, or VIE structure, has been adopted by many PRC-based companies, including us, to obtain and maintain necessary licenses and permits in industries that are currently subject to foreign investment restrictions in China. See “—Risks Related to Our Corporate Structure—Uncertainties and restrictions exist with respect to the interpretation and application of PRC laws and regulations relating to restrictions on foreign investment in value-added telecommunications and travel companies in China. If the PRC government determines that the contractual arrangements constituting part of the VIE structure do not comply with PRC laws and regulations, we could be subject to severe penalties, including shutting down of our online platform, and our ADSs may decline in value or become worthless” and “Item 4. Information on the Company—C. Organizational Structure.” Pursuant to the PRC Foreign Investment Law, “foreign investments” refer to investment activities conducted by foreign investors (including foreign natural persons, foreign enterprises or other foreign organizations) directly or “indirectly” in the PRC, which include any of the following circumstances: (i) foreign investors setting up foreign-invested enterprises in the PRC solely or jointly with other investors, (ii) foreign investors obtaining shares, equity interests, property portions or other similar rights and interests of enterprises within the PRC, (iii) foreign investors investing in new projects in the PRC solely or jointly with other investors, and (iv) investment in other methods as specified in laws and administrative regulations, or as stipulated by the State Council. The PRC Foreign Investment Law and its implementation rules do not use the concept of “control” in determining whether a company should be considered as a foreign-invested enterprise, nor do they explicitly provide the VIE structure as a method of foreign investment. However, the PRC Foreign Investment Law has a catch-all provision that includes into the definition of “foreign investments” made by foreign investors in China in other methods as specified in laws, administrative regulations, or as stipulated by the State Council. Since the PRC Foreign Investment Law and its implementation rules are relatively new, and the government authorities may promulgate future laws, regulations or rules on the interpretation and implementation of the PRC Foreign Investment Law, it is possible that the concept of “control” may be introduced or the VIE structure adopted by us may be deemed a method of foreign investment by any of such future laws, regulations and rules, which cause significant uncertainties as to whether the VIE structures would be treated as a method of foreign investment. If the VIE structure would be deemed as a method of foreign investment under any of such future laws, regulations and rules, and any of our businesses operations would fall under the “negative list” for foreign investment that is subject to any foreign investment restrictions or prohibitions, we would be required to take further actions to comply with such laws, regulations and rules, which may materially and adversely affect our current corporate structure, corporate governance, business, financial conditions and results of operations. Furthermore, if future laws, administrative regulations or rules mandate further actions to be taken by companies with respect to existing contractual arrangements, we may face uncertainties as to whether we are able to complete such actions in a timely manner, or at all. Failure to take timely and appropriate measures to respond to any of these or similar regulatory compliance challenges could materially and adversely affect our current corporate structure, business, financial condition and results of operations. 18 Table of Contents The PRC Foreign Investment Law requires foreign investors or applicable foreign investment enterprises to report investment information to government authority. Pursuant to the Information Reporting Measures for Foreign Investment jointly promulgated by the Ministry of Commerce and the State Administration for Market Regulation, or the SAMR, which took effect in January 2020, a foreign investment information reporting system shall be established and foreign investors or foreign investment enterprises shall report investment information to competent commerce departments of the government through the enterprise registration system and the enterprise credit information publicity system. The PRC government authorities may promulgate rules to further clarify the detailed information reporting requirements on foreign investors and the applicable foreign investment enterprises. In that case, our current corporate governance practices and business operations may need to be adjusted to comply with the information reporting requirements, which would significantly increase our compliance costs, and have a material and adverse effect on our current corporate structure, corporate governance, business, financial conditions and results of operations. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Foreign Investment in Value-Added Telecommunications Services.” We rely on contractual arrangements with Nanjing Tuniu and its shareholders for the operation of our business, which may not be as effective as direct ownership. If Nanjing Tuniu or its shareholders fail to perform their obligations under these contractual arrangements, we may have to resort to litigation or arbitration to enforce our rights, which may be time-consuming, unpredictable, expensive and damaging to our operations and reputation. If we are unable to direct the activities of and derive economic benefits from the VIE, we would not be able to continue to consolidate the financial results of the consolidated affiliated entities with our financial results. Although we have been advised by our PRC counsel, Fangda Partners, that our contractual arrangements with Nanjing Tuniu and its shareholders did not and does not result in any violation of current PRC laws and these agreements are valid, binding and enforceable, these contractual arrangements may not be as effective in providing control as direct ownership. If Nanjing Tuniu or its shareholders fail to perform their obligations under the contractual arrangements, we may have to incur substantial costs and expend additional resources to enforce such arrangements. We may also have to rely on legal remedies under contract law, including seeking specific performance or injunctive relief and claiming damages, which we cannot assure you will be effective. For example, if the shareholders of Nanjing Tuniu refuse to transfer their equity interests in Nanjing Tuniu to us or our designee when we exercise the purchase option pursuant to these contractual arrangements, or if they otherwise act in bad faith toward us, then we may have to take legal actions to compel them to perform their contractual obligations. Furthermore, while the company chops of Nanjing Tuniu are held by its legal and accounting departments, our ability to ensure its performance under the contractual agreements may be limited if we are unable to secure control of the company chops in the event of a dispute with its management or shareholders, as many official documents require the affixation of company chops to become fully effective. If we were the controlling shareholder of Nanjing Tuniu with direct ownership, we would be able to exercise our rights as shareholders to effect changes to its board of directors, which in turn could implement changes at the management and operational level. All the agreements under our contractual arrangements are governed by PRC laws and provide for the resolution of disputes through arbitration in the PRC. Accordingly, these contracts would be interpreted in accordance with PRC laws and any disputes would be resolved in accordance with PRC legal procedures. There remain significant uncertainties regarding how our contractual arrangements would be interpreted under PRC laws and the ultimate outcome of the resolution of disputes in relation to such contractual arrangements, should arbitration become necessary. Therefore, our ability to enforce these contractual arrangements is subject to uncertainties. Under PRC laws, if the losing parties fail to carry out the arbitration awards within a prescribed time limit, the prevailing parties may only enforce the arbitration awards in PRC courts through arbitration award recognition proceedings, which would require additional expenses and delay. In the event we are unable to enforce these contractual arrangements, we may not be able to direct the activities of and derive economic benefits from Nanjing Tuniu and its shareholders. As a result, our ability to conduct our business may be negatively affected and we would not be able to continue to consolidate the financial results of the consolidated affiliated entities with our financial results. The shareholders of Nanjing Tuniu may have potential conflicts of interest with us, which may materially and adversely affect our business and financial condition. We have designated individuals who are PRC nationals to be the shareholders of Nanjing Tuniu. The equity interests of Nanjing Tuniu are held by Messrs. Dunde Yu and Anqiang Chen. The interests of these individuals as the shareholders of Nanjing Tuniu may differ from the interests of our company as a whole. These shareholders may breach, or cause Nanjing Tuniu to breach, the existing contractual arrangements we have with them and Nanjing Tuniu, which would have a material and adverse effect on our ability to effectively control Nanjing Tuniu. We cannot assure you that when conflicts of interest arise, any or all of these shareholders will act in the best interests of our company or such conflicts will be resolved in our favor. 19 Table of Contents Currently, we do not have any arrangements to address potential conflicts of interest between these shareholders and our company, except that we could exercise our purchase option under the purchase option agreement with these shareholders to request them to transfer all of their equity interests in Nanjing Tuniu to a PRC entity or individual designated by us, to the extent permitted by PRC laws. We rely on Mr. Dunde Yu, who is our founder, director and beneficial owner, Mr. Anqiang Chen, who is our Financial Controller, to abide by the PRC laws and regulations. If we cannot resolve any conflict of interest or dispute between us and the shareholders of Nanjing Tuniu, we would have to rely on legal proceedings, which could result in disruption of our business and subject us to substantial uncertainty as to the outcome of any such legal proceedings. Our contractual arrangements with Nanjing Tuniu and its shareholders may be subject to scrutiny by the PRC tax authorities, and a finding that we owe additional taxes could substantially increase our consolidated net loss and reduce the value of your investment. Under PRC laws and regulations, arrangements and transactions among related parties may be subject to audit or challenge by the PRC tax authorities. We could face material and adverse tax consequences if the PRC tax authorities determine that the contractual arrangements among Beijing Tuniu, Nanjing Tuniu and the shareholders of Nanjing Tuniu are not conducted on an arm’s length basis and make transfer pricing adjustment to Nanjing Tuniu’s income. A transfer pricing adjustment could, among other things, result in a reduction, of expense deductions recorded by Nanjing Tuniu, which could in turn increase its tax liabilities. In addition, the PRC tax authorities may impose late payment fees and other penalties to Nanjing Tuniu for under-paid taxes. Our consolidated net loss may be increased if our tax liabilities increase or if we are found to be subject to late payment fees or other penalties. If Nanjing Tuniu becomes the subject of a bankruptcy or liquidation proceeding, we may lose the ability to use and enjoy its assets, which could materially and adversely affect our business. To comply with PRC laws and regulations relating to foreign ownership restrictions in the online value-added telecommunications business, we hold our ICP license and operate our business through contractual arrangements with Nanjing Tuniu as well as its shareholders. As part of these arrangements, Nanjing Tuniu holds assets that are important to the operation of our business. We do not have priority pledges or liens over Nanjing Tuniu’s assets. This lack of priority pledges and liens holds risks in the event Nanjing Tuniu becomes the subject of a bankruptcy or liquidation proceeding. If Nanjing Tuniu undergoes an involuntary liquidation proceeding, third-party creditors may claim rights to some or all of its assets and we may not have priority against such third-party creditors on Nanjing Tuniu’s assets. If Nanjing Tuniu undergoes voluntary liquidation, we may take part in the liquidation procedures as a general creditor under the PRC Enterprise Bankruptcy Law and recover any outstanding liabilities owed by Nanjing Tuniu to Beijing Tuniu under the cooperation agreement between them. To ameliorate the risks of an involuntary liquidation proceeding initiated by a third-party creditor, we closely monitor the operations and finances of Nanjing Tuniu through carefully designed budgetary and internal control measures to ensure that Nanjing Tuniu is well capitalized. Furthermore, Beijing Tuniu has the ability, if necessary, to provide financial support to Nanjing Tuniu to minimize the risk of such involuntary liquidation. We believe the likelihood that Nanjing Tuniu will undergo an involuntary liquidation is remote as a result of these ameliorating measures. However, we cannot assure you that our ameliorating measures will be effective and that the risks associated with such liquidation will not materialize. If the shareholders of Nanjing Tuniu were to attempt to voluntarily liquidate Nanjing Tuniu without obtaining our prior consent, we could effectively prevent such unauthorized voluntary liquidation by exercising our right to request Nanjing Tuniu’s shareholders to transfer all of their equity interests to a PRC entity or individual designated by us in accordance with the purchase option agreement with the shareholders of Nanjing Tuniu, to the extent permitted by PRC laws. In the event that the shareholders of Nanjing Tuniu initiate a voluntary liquidation proceeding without our authorization or attempt to distribute the retained earnings or assets of Nanjing Tuniu without our prior consent, we may need to resort to legal proceedings to enforce the terms of the contractual agreements. Any such legal proceeding may be costly and may divert our management’s time and attention away from the operation of our business, and the outcome of such legal proceeding would be uncertain. 20 Table of Contents Risks Related to Doing Business in China The approval of or filing with the CSRC or other PRC government authorities may be required in connection with our offshore offerings under PRC law, and, if required, we cannot predict whether or for how long we will be able to obtain such approval or complete such filing. The Regulations on Mergers and Acquisitions of Domestic Enterprises by Foreign Investors, or the M&A Rules, adopted by six PRC regulatory agencies in 2006 and amended in 2009, requires an overseas special purpose vehicle formed for listing purposes through acquisitions of PRC domestic companies and controlled by PRC companies or individuals to obtain the approval of the CSRC prior to the listing and trading of such special purpose vehicle’s securities on an overseas stock exchange. However, uncertainties remain regarding the interpretation and application of the M&A Rules, and our offshore offerings, including our initial public offering, may ultimately require approval of the CSRC. Our PRC counsel, Fangda Partners, has advised us that, based on its understanding of the current PRC laws, rules and regulations, we are not required to submit an application to the CSRC for its approval of the initial public offering and listing of our ADSs on the Nasdaq Global Market, because: ● the CSRC currently has not issued any definitive rule or interpretation concerning whether offerings like our initial public offering are subject to CSRC’s approval under the M&A Rules; ● our wholly owned PRC subsidiaries were established by means of foreign direct investment, rather than through a merger or acquisition of domestic companies, as defined under the M&A Rules; and ● there is no provision in the M&A Rules that explicitly classifies contractual arrangements as a type of transaction subject to the M&A Rules. If the CSRC approval is required, it is uncertain whether we can or how long it will take us to obtain the approval and, even if we obtain such CSRC approval, the approval could be rescinded. Any failure to obtain or delay in obtaining the CSRC approval for any of our offshore offerings, or a rescission of such approval if obtained by us, would subject us to sanctions imposed by the CSRC or other PRC regulatory authorities, which could include fines and penalties on our operations in China, restrictions or limitations on our ability to pay dividends outside of mainland China, and other forms of sanctions that may materially and adversely affect our business, financial condition, and results of operations. On February 17, 2023, the CSRC promulgated the Overseas Listing Trial Measures, and five guidelines, which became effective on March 31, 2023, requiring Chinese domestic companies’ overseas offerings and listings of equity securities be filed with the CSRC. The Overseas Listing Trial Measures provide, among others, that Chinese domestic companies that have already directly or indirectly offered and listed securities in overseas markets prior to the effectiveness of the Overseas Listing Trial Measures shall fulfil their filing obligations and report their information to the CSRC within three working days after conducting securities offerings and listings outside of mainland China. There are uncertainties as to the interpretation and implementation of the Overseas Listing Trial Measures. We cannot assure you that we would not be deemed as an indirect overseas listed Chinese company under the Overseas Listing Trial Measures. If we are deemed as an indirect overseas listed Chinese company but fail to complete the filing procedures with the CSRC for any of our future securities offerings and listings outside of mainland China, sanctions and fines imposed by the CSRC and relevant departments of the State Council. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Overseas Offering and Listing.”. Due to our operations in China and listing in U.S., the Overseas Listing Trial Measures and any future PRC, U.S. or other rules and regulations that place restrictions on capital raising could adversely affect our business and results of operations and could significantly limit or completely hinder our ability to offer or continue to offer our ADSs or ordinary shares to investors, and could cause the value of our ADSs or ordinary shares to significantly decline or become worthless. Relatedly, On September 6, 2024, the National Development and Reform Commission and the Ministry of Commerce jointly issued the Special Administrative Measures (Negative List) for Foreign Investment Access (2024 Version), or the 2024 Negative List, which became effective on November 1, 2024. Pursuant to the 2024 Negative List, if a domestic company engaging in the prohibited business stipulated in the 2024 Negative List seeks an overseas offering and listing, it shall obtain the approval from the competent government authorities. Besides, the foreign investors of the company shall not be involved in the company’s operation and management, and their shareholding percentage shall be subject, mutatis mutandis, to the regulations on the domestic securities investments by foreign investors. There remain substantial uncertainties as to the interpretation and implementation of these requirements, and it is unclear as to whether and to what extent listed companies like us will be subject to these new requirements. If we are required to comply with these requirements and fail to do so on a timely basis, if at all, our business operations, financial conditions and business prospects may be adversely and materially affected. 21 Table of Contents In addition, we cannot assure you that any new rules or regulations promulgated in the future will not impose additional requirements on us. If other approval and filing from the CSRC or other regulatory authorities or other procedures are required for our future offshore offerings, it is uncertain whether we can or how long it will take us to obtain such approvals or complete such filing procedures and any such approval or filing could be rescinded or rejected. Any failure to obtain or delay in obtaining such approvals or completing such filing procedures for our future offshore offerings, or a rescission of any such approval or filing if obtained by us, would subject us to sanctions by the CSRC or other PRC regulatory authorities. These regulatory authorities may impose fines and penalties on our operations in China, limit our ability to pay dividends outside of mainland China, limit our operating privileges in China, delay or restrict the repatriation of the proceeds from our future offshore offerings into mainland China, halt our future offshore offering or take other actions that could materially and adversely affect our businesses, financial conditions, results of operations, and prospects, as well as the trading price of our ADSs. In addition, if the CSRC or other regulatory authorities later promulgate new rules or explanations requiring that we obtain their approvals or accomplish the required filing or other regulatory procedures for our prior offshore offerings, we may be unable to obtain a waiver of such requirements, if and when procedures are established to obtain such a waiver. Any uncertainties or negative publicity regarding such requirement could materially and adversely affect our business, prospect, financial condition, reputation, and the trading price of our ADSs. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Information Security and Censorship” for more detailed discussion. Our PRC counsel has advised us based on their understanding of the current PRC laws, rules and regulations that no permission is required from any Chinese authorities (including the CSRC and the Cyberspace Administration of China) for our previous offshore offerings as of the date of this annual report. There can be no assurance that the PRC government agencies, including the CSRC, would reach the same conclusion as our PRC counsel. The PCAOB had historically been unable to inspect our auditor in relation to their audit work performed for our financial statements and the inability of the PCAOB to conduct inspections of our auditor in the past has deprived our investors with the benefits of such inspections. Our auditor, the independent registered public accounting firm that issues the audit report included elsewhere in this annual report, as an auditor of companies that are traded publicly in the United States and a firm registered with the PCAOB, is subject to laws in the United States pursuant to which the PCAOB conducts regular inspections to assess its compliance with the applicable professional standards. The auditor is located in mainland China, a jurisdiction where the PCAOB was historically unable to conduct inspections and investigations completely before 2022. As a result, we and investors in the ADSs were deprived of the benefits of such PCAOB inspections. The inability of the PCAOB to conduct inspections of auditors in China in the past has made it more difficult to evaluate the effectiveness of our independent registered public accounting firm’s audit procedures or quality control procedures as compared to auditors outside of China that are subject to the PCAOB inspections. On December 15, 2022, the PCAOB issued a report that vacated its December 16, 2021 determination and removed mainland China and Hong Kong from the list of jurisdictions where it is unable to inspect or investigate completely registered public accounting firms. However, if the PCAOB determines in the future that it no longer has full access to inspect and investigate completely accounting firms in mainland China and Hong Kong, and we use an accounting firm headquartered in one of these jurisdictions to issue an audit report on our financial statements filed with the Securities and Exchange Commission, we and investors in our ADSs would be deprived of the benefits of such PCAOB inspections again, which could cause investors and potential investors in the ADSs to lose confidence in our audit procedures and reported financial information and the quality of our financial statements. Our ADSs may be prohibited from trading in the United States under the HFCAA in the future if the PCAOB is unable to inspect or investigate completely auditors located in China. The delisting of the ADSs, or the threat of their being delisted, may materially and adversely affect the value of your investment. Pursuant to the HFCAA, if the SEC determines that we have filed audit reports issued by a registered public accounting firm that has not been subject to inspections by the PCAOB for two consecutive years, the SEC will prohibit our shares or ADSs from being traded on a national securities exchange or in the over-the-counter trading market in the United States. 22 Table of Contents On December 16, 2021, the PCAOB issued a report to notify the SEC of its determination that the PCAOB was unable to inspect or investigate completely registered public accounting firms headquartered in mainland China and Hong Kong, and our auditor was subject to that determination. In May 2022, the SEC conclusively listed us as a Commission-Identified Issuer under the HFCAA following the filing of our annual report on Form 20-F for the fiscal year ended December 31, 2021. On December 15, 2022, the PCAOB removed mainland China and Hong Kong from the list of jurisdictions where it is unable to inspect or investigate completely registered public accounting firms. As of the date of this annual report, the PCAOB has not issued any new determination that it is unable to inspect or investigate completely registered public accounting firms headquartered in any jurisdiction. For this reason, we were not identified as a Commission-Identified Issuer under the HFCAA after we filed our annual report on Form 20-F for the fiscal year ended December 31, 2022, 2023 or 2024, and we do not expect to be identified as a Commission-Identified Issuer under the HFCAA after we file this annual report on Form 20-F for the fiscal year ended December 31, 2025. Each year, the PCAOB will determine whether it can inspect and investigate completely audit firms in mainland China and Hong Kong, among other jurisdictions. If the PCAOB determines in the future that it no longer has full access to inspect and investigate completely accounting firms in mainland China and Hong Kong and we use an accounting firm headquartered in one of these jurisdictions to issue an audit report on our financial statements filed with the Securities and Exchange Commission, we would be identified as a Commission-Identified Issuer following the filing of the annual report on Form 20-F for the relevant fiscal year. In accordance with the HFCAA, our securities would be prohibited from being traded on a national securities exchange or in the over-the-counter trading market in the United States if we are identified as a Commission-Identified Issuer for two consecutive years in the future. If our shares and ADSs are prohibited from trading in the United States, there is no certainty that we will be able to list on a non-U.S. exchange or that a market for our shares will develop outside of the United States. Such a prohibition would substantially impair your ability to sell or purchase our ADSs when you wish to do so, and the risk and uncertainty associated with delisting would have a negative impact on the price of our ADSs. Also, such a prohibition would significantly affect our ability to raise capital on terms acceptable to us, or at all, which would have a material adverse impact on our business, financial condition, and prospects. Uncertainties in the interpretation and enforcement of PRC laws and regulations could limit the legal protections available to you and us. The PRC legal system is based on written statutes. Unlike common law systems, it is a system in which legal cases have limited value as precedents. In the late 1970s, the PRC government began to promulgate a comprehensive system of laws and regulations governing economic matters in general. The overall effect of legislation over the past three decades has significantly increased the protections afforded to various forms of foreign or private-sector investment in China. Our PRC subsidiaries and the consolidated affiliated entities are subject to various PRC laws and regulations generally applicable to companies in China. However, since these laws and regulations are relatively new and the PRC legal system continues to rapidly evolve, the interpretations of many laws, regulations and rules are not always uniform and enforcement of these laws, regulations and rules are still evolving and subject to change. From time to time, we may have to resort to administrative and court proceedings to enforce our legal rights. However, since PRC administrative and court authorities have significant discretion in interpreting and implementing statutory and contractual terms, it may be more difficult to evaluate the outcome of administrative and court proceedings and the level of legal protection we enjoy than in other jurisdictions. Furthermore, the PRC legal system is partly influenced by government policies and internal rules (some of which may be subject to changes from time to time and may be issued without advance notice). As a result, we may not be aware of our violation of these policies and rules until sometime after the violation. Such uncertainties, including uncertainty over the scope and effect of our contractual, property (including intellectual property) and procedural rights, and any failure to respond to changes in the regulatory environment in China could materially and adversely affect our business and impede our ability to continue our operations. 23 Table of Contents We may be adversely affected by the complexity, uncertainties and changes in PRC regulations of internet, tourism,and related business and companies. The PRC government regulates the internet, tourism and related industry extensively, including foreign ownership of, and the licensing and permit requirements pertaining to, companies in the internet industry. These laws and regulations in relation to internet and tourism are evolving, and their interpretation and enforcement involve significant uncertainty. As a result, under certain circumstances it may be difficult to determine what actions or omissions may be deemed to be violations of applicable laws and regulations. Issues, risks and uncertainties relating to PRC government regulation of the internet industry include, but are not limited to, the following: ● We only have contractual control over our websites. We do not own the websites due to the restriction of foreign investment in businesses providing value-added telecommunications services in China, including online information services. ● The licensing requirements relating to the internet business in China are rapidly evolving and are therefore subject to uncertainties. This means that permits, licenses or operations at some of our PRC subsidiaries and the consolidated affiliated entities may be subject to challenges, or we may not be able to obtain or renew certain permits or licenses. Violation of the laws and regulations governing these licenses, approvals, filings or qualifications may result in penalties and even suspension or revocation of the licenses, approvals, filings or qualifications. Failure to obtain, maintain or renew these permits and licenses may significantly disrupt our business, or subject us to sanctions, requirements to increase capital or other conditions or enforcement, or compromise enforceability of related contractual arrangements, or have other harmful effects on us. For example, we have not obtained the internet audio-visual program transmission license for providing the internet audio-visual program services and content on our platform in China, for which we are not qualified to apply, because the current applicable laws and regulations require an applicant to be a wholly state-owned or state-controlled entity. In addition, we have not completed filing for distributing publications and providing live streaming services on our platform. ● New laws and regulations may be promulgated to regulate internet activities, including online advertising and internet cultural activities. Other aspects of our online operations may be further regulated in the future. If these new laws and regulations are promulgated, additional licenses may be required for our online operations. If our operations do not comply with these new regulations at the time they become effective, or if we fail to obtain any licenses required under these new laws and regulations, we could be subject to penalties. ● The PRC Tourism Law and the Measures for the Administration of the Overseas Tours of Chinese Citizens promulgated by the State Council impose stringent restrictions on tour operators, pursuant to which, tour operators are prohibited from arranging compulsory shopping or other activities which charge additional fees on top of the contract prices that the tourist has already paid, unless it is agreed upon by both parties through consultation or requested by the tourist and does not affect the itinerary of other tourists. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Travel Companies.” If travel suppliers fail to comply with these restrictions, our reputation and brand may be negatively affected. 24 Table of Contents ● The PRC E-Commerce Law strengthens the regulation of e-commerce operators relating to consumer protection, personal data protection and intellectual property rights protection. As an e-commerce operator, we are required under the PRC E-Commerce Law, (1) to refrain from conducting false or misleading commercial promotion by fabricating transactions, making up user comments or otherwise, to defraud or mislead consumers, (2) to allow consumer to opt out of search results targeting his or her personally characteristics such as hobbies and shopping patterns and simultaneously show the consumers with options not targeting his or her personally characteristics, (3) to alert consumers of tie-in sale of commodities or services, and shall not set the tied-in commodities or services as a default option, (4) to obtain and maintain business license and other applicable licenses as required, and disclose information of such license at our front-page, (5) to clearly detail the refund procedure for the deposit we received from customers, and not set any unreasonable conditions to refund, (6) to take the risks and responsibilities in the transportation of the products, unless the consumer chooses a courier logistics service provider other than the default service provider, etc. Since the promulgation of the PRC E-Commerce Law, the PRC government has promulgated implementation rules and opinions governing the e-commerce industry, including measures governing the administration of payment institutions’ foreign exchange related services provided to e-commerce operators and consumers, as well as guiding opinions on data interconnection and sharing between enterprises of express delivery and e-commerce industries, and the Measures for the Supervision and Administration of Online Trading which impose a series of regulatory requirements on new forms of online trading, such as online social networking e-commerce and online livestreaming e-commerce. Among other things, the Measures for the Supervision and Administration of Online Trading specify typical examples of unreasonable restrictions or conditions imposed by e-commerce platform operators on transactions concluded on their platforms and require e-commerce platform operators to verify and update each merchant’s profile on a regular basis and monitor registration status of their market participants. See also “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Online Transaction Platform Operators.” We have adopted the required measures to keep our current practice in line with the requirements under the PRC E-Commerce Law and its implementation rules. However, the competent PRC government authorities may promulgate further implementation rules under the PRC E-Commerce Law and may deem our current measures insufficient under the PRC E-Commerce Law and its implementation rules. If we are required to adopt additional measures to comply with the PRC E-Commerce Law and its implementation rules, our compliance cost would increase significantly, and our business and results of operations will be materially and adversely affected. The interpretation and application of existing PRC laws, regulations and policies and possible new laws, regulations or policies relating to the internet and tourism industrires have created substantial uncertainties regarding the legality of existing and future foreign investments in, and the businesses and activities of, internet businesses in China, including our business. The PRC government’s significant oversight over our business operation could result in a material adverse change in our operations and the value of our ADSs. We conduct our business in China. Our operations in China are governed by PRC laws and regulations. The PRC government has significant oversight over the conduct of our business, and may influence our operations as the government deems appropriate to advance regulatory and societal goals and policy positions. The PRC government published policies that significantly affected certain industries and we cannot rule out the possibility that it will in the future release regulations or policies that directly or indirectly affect our industry or require us to seek additional permission to continue our operations, which could result in a material adverse change in our operation and/or the value of our ADSs. All the operational risks associated with being based in and having operations in mainland China may also apply to operations in Hong Kong and Macau. With respect to the legal risks associated with being based in and having operations in mainland China, the laws, regulations and the discretion of mainland China governmental authorities discussed in this annual report are expected to apply to mainland China entities and businesses, rather than entities or businesses in Hong Kong and Macau, which operate under different sets of laws from mainland China. However, the PRC government may influence our operations in Hong Kong and Macau at any time, which may have a material impact on our ability to conduct business in Hong Kong and Macau and could result in a material adverse change in our operation and/or the value of our ADSs. 25 Table of Contents PRC regulation of direct investment and loans by offshore holding companies to PRC entities and governmental control of currency conversion may delay or limit us from using the proceeds of our financing activities, or making additional capital contributions or loans to our PRC subsidiaries and the consolidated affiliated entities, which could materially and adversely affect our liquidity and our ability to fund and expand our business. We are not an operating company in China but a Cayman Islands holding company conducting our operations in China through our PRC subsidiaries and the consolidated affiliated entities. Holders of our ADSs hold equity interest in Tuniu Corporation, our Cayman Islands holding company, and do not have direct or indirect equity interest in the VIE. Any capital contributions or loans that we, as an offshore entity, make to our PRC subsidiaries and the consolidated affiliated entities, including from the proceeds of our financing activities, such as our private placements, are subject to PRC laws and regulations. Under PRC laws and regulations, we are permitted to utilize such proceeds to fund our existing PRC subsidiaries and the consolidated affiliated entities only through loans or capital contributions or to establish new PRC subsidiaries or new PRC consolidated affiliated entities, subject to applicable government registration and approval requirements. Currently, there is no statutory limit to the amount of funding that we can provide to our PRC subsidiaries through capital contributions. However, the maximum amount we can loan to our PRC subsidiaries and the consolidated affiliated entities is subject to statutory limits. According to current PRC laws and regulations, we can provide funding to our PRC subsidiaries through loans of up to either (i) the amount of the difference between the respective registered total investment amount and registered capital of each of our PRC subsidiaries, or the Total Investment and Registered Capital Balance, or (ii) the then applicable statutory multiple, the amount of their respective net assets, calculated in accordance with PRC GAAP, or the Net Assets Limit, at our election. We may also fund the consolidated affiliated entities through cross-border loans and the maximum amount would be their respective Net Assets Limit. Increasing the Total Investment and Registered Capital Balance of our PRC subsidiaries is subject to governmental procedures and may require a PRC subsidiary to increase its registered capital at the same time. If we choose to make a loan to a PRC subsidiary or PRC consolidated affiliated entity based on its Net Assets Limit, the maximum amount we would be able to loan to the relevant PRC subsidiary or PRC consolidated affiliated entity would depend on the relevant PRC entity’s net assets and the applicable statutory multiple at the time of calculation. Moreover, any medium or long-term loan to be provided by us to the VIE or other domestic PRC entities must also be registered with the National Development and Reform Commission. PRC laws and regulations may also impose more stringent limitations to cross - border loans, which will also have negative impacts on our ability to fund our PRC entities. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Foreign Currency Exchange.” SAFE regulations prohibit foreign-invested enterprises from using Renminbi funds converted from foreign exchange capital for the following purposes: (i) direct or indirect expenditure prohibited by relevant laws and regulations, (ii) directly or indirectly used for investment in securities investments or other investments in wealth management unless otherwise provided by relevant laws and regulations, (iii) providing loans to non-affiliated enterprises, except where it is expressly permitted in the business license and (iv) paying the expenses related to the purchase of real estate that is not for self-use (except for the foreign-invested real estate enterprises). In addition, SAFE continues to enhance its oversight of the flow and use of the Renminbi capital converted from foreign currency registered capital of a foreign-invested company. The business scopes of Beijing Tuniu and Tuniu (Nanjing) Information Technology Co., Ltd., or Tuniu Nanjing Information Technology, include research and development of computer software, network information technology products, computer application systems, e-commerce systems, network security systems and computer system integration; technology services, consulting and transfers; sales of self-developed products; investment consulting; business information consulting; and conference services and public relations advice. Beijing Tuniu and Tuniu Nanjing Information Technology may only use Renminbi converted from foreign exchange capital contribution for activities allowed by the aforementioned SAFE regulations. Violations of circulars promulgated by SAFE could result in severe monetary or other penalties. Although currently there are not equivalent or similar restrictions or limitations in Hong Kong or Macau on cash transfers in, or out of, our Hong Kong entities (including currency conversion), if certain restrictions or limitations in mainland China were to become applicable to cash transfers in and out of Hong Kong entities (including currency conversion) in the future, the funds in our Hong Kong entities likewise, may not be available to meet our currency demand. Due to the restrictions imposed on loans in foreign currencies extended to any PRC domestic companies, we may not be able to make such loans to the subsidiaries of our wholly foreign-owned subsidiaries in mainland China and the consolidated affiliated entities in mainland China. Meanwhile, we may not be able to finance the activities of the consolidated affiliated entities by means of capital contributions given the restrictions on foreign investment in the businesses that are currently conducted by the consolidated affiliated entities. 26 Table of Contents In light of the various requirements imposed by PRC regulations on loans to and direct investment in PRC entities by offshore holding companies, we cannot assure you that we will be able to complete the necessary government registrations or record-filings on a timely basis, if at all, with respect to future loans to our PRC subsidiaries or any consolidated affiliated entity or future capital contributions by us to our wholly foreign-owned subsidiaries in mainland China. As a result, uncertainties exist as to our ability to provide prompt financial support to our PRC subsidiaries or the consolidated affiliated entities when needed. If we fail to complete such registrations or record-filings, our ability to use foreign currency, including the proceeds we received from our initial public offering, and to capitalize or otherwise fund our PRC operations may be negatively affected, which could materially and adversely affect our liquidity and our ability to fund and expand our business. Changes in China’s economic or social conditions or government policies could have a material adverse effect on our business and operations. Our business operations are based in China. Accordingly, our business, financial condition, results of operations and prospects may be influenced to a significant degree by economic or social conditions or government policies in China generally and by continued economic growth in China as a whole. Although the PRC government has implemented measures emphasizing the utilization of market forces for economic reform, the reduction of state ownership of productive assets, and the establishment of improved corporate governance in business enterprises, a substantial portion of productive assets in China is still owned by the PRC government. In addition, the PRC government continues to play a significant role in regulating industry development by imposing industrial policies. The PRC government also exercises significant control over China’s economic growth through allocating resources, regulating payment of foreign currency-denominated obligations, setting monetary policy and using a variety of policies to guide the economic activities of businesses in China. While the Chinese economy has experienced significant growth over the past decades, growth has been uneven, both geographically and among various sectors of the economy. Some of the government measures may benefit the overall Chinese economy, but may have a negative effect on us. For example, our financial condition and results of operations may be adversely affected by government regulation over capital investments or changes in tax regulations. Any prolonged turbulence in the Chinese economy may reduce the demand for our products and services and materially and adversely affect our business and results of operations. However, any stimulus measures designed to boost the Chinese economy may contribute to higher inflation, which could adversely affect our financial condition and results of operations. For example, certain operating costs and expenses, such as employee compensation and office operating expenses, may increase as a result of higher inflation. A severe or prolonged downturn in the Chinese or global economy could materially and adversely affect the leisure travel industry and our business, results of operations and financial condition. The global macroeconomic environment still faces numerous challenges after 2022. The growth rate of the Chinese economy has been slowing since 2010 and the Chinese population has begun to decline since 2022. The Russia-Ukraine conflict, the Hamas-Israel conflict, the conflict in the Persian Gulf and surrounding areas as far west as Israel and Lebanon, and the restrictions at various times on shipping through the straits of Hormuz and the Red Sea have heightened geopolitical tensions across the world. The impact of the regional conflicts has contributed to increases in food and energy prices and thus to inflation more generally, with the potential for even more serious consequences if oil and gas facilities are destroyed or shipping is affected for an extended period of time. There have also been concerns about the relationship between China and other countries, which may potentially have economic effects. In particular, there is significant uncertainty about the future relationship between the United States and China with respect to a wide range of issues including trade policies, treaties, government regulations and tariffs. Economic conditions in China are sensitive to global economic conditions, as well as changes in domestic economic and political policies and the expected or perceived overall economic growth rate in China. Any severe or prolonged slowdown in the global or Chinese economy may materially and adversely affect the leisure travel industry and our business, results of operations and financial condition, and continued turbulence in the international markets may adversely affect our ability to access the capital markets to meet liquidity needs. Our users and business partners may reduce or delay spending with us, while we may have difficulty expanding our user base fast enough, or at all, to offset the impact of decreased spending by our existing users. 27 Table of Contents The current tensions in international trade and rising political tensions, may adversely impact our business, financial condition, and results of operations. There have been heightened tensions in international economic relations in recent years and these tensions may continue to escalate in the future. These tensions have resulted in changes in international trade policies and, as they further escalate, may result in additional barriers to trade. For example, the tensions between the United States and China in recent years have led to additional, or higher tariffs imposed by the United States on products imported from China and restrictions on the sale of certain products into the United States. China has responded by imposing, and proposing to impose additional, or higher tariffs on products imported from the United States, among other measures. In addition, international political tensions have escalated and continue to be subject to uncertainties with respect to a wide range of issues. The U.S. government has also adopted measures aiming to prohibit or restrict U.S. investment in China-associated companies that operate in certain industries. Rising political tensions could reduce levels of trades, investments, technological exchanges, and other economic activities, which would materially and adversely affect the global economic conditions and the stability of global financial markets. These developments may also lead to increased compliance costs, operational disruptions, and potential constraints on our access to capital markets. The possibility of the U.S. government delisting China-associated companies from U.S. stock exchanges, as recently reported in the media, creates uncertainty regarding our ability to maintain our Nasdaq listing. Any further escalation of international tensions may have a negative impact on the general, economic, political, and social conditions of the countries where we operate and, in turn, adversely impact our business, financial condition, and results of operations. The PRC government regulates travel and other related industries. If we fail to obtain or maintain all pertinent permits and approvals or if the PRC government imposes more restrictions on these industries, our business may be adversely affected. We are required to obtain applicable permits or approvals from regulatory authorities to conduct our business activities. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation.” If we fail to obtain or maintain any of the required permits or approvals in the future, we may be subject to various penalties, such as fines or suspension of operations in these regulated businesses, which could severely disrupt our business operations. As a result, our financial condition and results of operations may be adversely affected. Under the PRC Enterprise Income Tax Law, we may be classified as a PRC resident enterprise for PRC enterprise income tax purposes. Such classification would likely result in unfavorable tax consequences to us and our non-PRC shareholders and would have a material adverse effect on our results of operations and the value of your investment. Under the PRC Enterprise Income Tax Law and its implementation rules, an enterprise established outside the PRC with a “de facto management body” within the PRC is considered a PRC resident enterprise for PRC enterprise income tax purposes and is generally subject to a uniform 25% enterprise income tax rate on its worldwide income. Under the implementation rules to the Enterprise Income Tax Law, a “de facto management body” is defined as a body that has material and overall management and control over the manufacturing and business operations, personnel and human resources, finances and properties of an enterprise. In addition, STA Circular 82, which was issued in April 2009 and was amended in December 2017 by the State Taxation Administration specifies that certain offshore incorporated enterprises controlled by PRC enterprises or PRC enterprise groups will be classified as PRC resident enterprises if all of the following conditions are met: (a) senior management personnel and core management departments in charge of the daily operations of the enterprises have their presence mainly in the PRC; (b) their financial and human resources decisions are subject to determination or approval by persons or bodies in the PRC; (c) major assets, accounting books and company seals of the enterprises, and minutes and files of their board’s and shareholders’ meetings are located or kept in the PRC; and (d) half or more of the enterprises’ directors or senior management personnel with voting rights habitually reside in the PRC. Further to STA Circular 82, the State Taxation Administration issued STA Bulletin 45, which took effect on September 1, 2011, to provide more guidance on the implementation of STA Circular 82 and clarify the reporting and filing obligations of such “Chinese-controlled offshore-incorporated resident enterprises.” STA Bulletin 45 provides procedures and administrative details for the determination of PRC resident enterprise status and administration on post-determination matters. Although both STA Circular 82 and STA Bulletin 45 only apply to offshore enterprises controlled by PRC enterprises or PRC enterprise groups, not those controlled by PRC individuals or foreign individuals like us, the determining criteria set forth in STA Circular 82 and STA Bulletin 45 may reflect the State Taxation Administration’s general position on how the “de facto management body” test should be applied in determining the PRC resident enterprise status of offshore enterprises, regardless of whether they are controlled by PRC enterprises, PRC enterprise groups or by PRC or foreign individuals. 28 Table of Contents We do not believe that Tuniu Corporation meets all of the conditions above and thus we do not believe that it is a PRC resident enterprise for PRC enterprise income tax purposes, despite the fact that all of the members of our management team as well as the management team of Tuniu (HK) Limited are located in China. However, if the PRC tax authorities determine that it is a PRC resident enterprise for PRC enterprise income tax purposes, a number of unfavorable PRC tax consequences could follow. First, we will be subject to the uniform 25% enterprise income tax on our worldwide income, which could materially reduce our net income. In addition, we will also be subject to PRC enterprise income tax reporting obligations. Second, although dividends paid by one PRC tax resident to another PRC tax resident should qualify as “tax-exempt income” under the Enterprise Income Tax Law, we cannot assure you that such dividends will not be subject to a 10% withholding tax, as the PRC foreign exchange control authorities, which enforce the withholding tax on dividends, and the PRC tax authorities have not yet issued guidance with respect to the processing of outbound remittances to entities that are not controlled by any PRC enterprise or PRC enterprise group and treated as PRC resident enterprises for PRC enterprise income tax purposes. Under the Enterprise Income Tax Law and its implementation rules, subject to any applicable tax treaty or similar arrangement between the PRC and our shareholders’ jurisdiction of residence that provides for a different income tax arrangement, PRC withholding tax at the rate of 10% is normally applicable to dividends from PRC sources payable to investors that are non-PRC resident enterprises, which do not have an establishment or place of business in the PRC, or which have such establishment or place of business if the relevant income is not effectively connected with the establishment or place of business. Any gain realized on the transfer of ADSs or shares by such non-PRC resident enterprise investors is also subject to 10% PRC income tax if such gain is regarded as income derived from sources within the PRC unless a tax treaty or similar arrangement otherwise provides. Under the PRC Individual Income Tax Law and its implementation rules, dividends from sources within the PRC paid to foreign individual investors who are not PRC residents are generally subject to a PRC withholding tax at a rate of 20%, and gains from PRC sources realized by such investors on the transfer of ADSs or shares are generally subject to 20% PRC income tax, in each case, subject to any reduction or exemption set forth in applicable tax treaties and PRC laws. It is also unclear whether dividends we pay with respect to our ordinary shares or ADSs, or the gain realized from the transfer of our ordinary shares or ADSs, would be treated as income derived from sources within the PRC and as a result be subject to PRC income tax if we were considered a PRC resident enterprise, as described above. If PRC income tax was imposed on gains realized through the transfer of our ADSs or ordinary shares or on dividends paid to our non-PRC resident shareholders, the value of the investment in our ADSs or ordinary shares may be materially and adversely affected. Furthermore, our ADS holders whose jurisdictions of residence have tax treaties or arrangements with China may not qualify for benefits under such tax treaties or arrangements. We face uncertainty regarding the PRC tax reporting obligations and consequences for certain indirect transfers of our operating company’s equity interests. Enhanced scrutiny over acquisition transactions by the PRC tax authorities may have a negative impact on potential acquisitions we may pursue in the future. According to the Announcement of the State Taxation Administration on Several Issues Concerning the Enterprise Income Tax on Indirect Property Transfer by Non-Resident Enterprises promulgated by the State Taxation Administration in February 2015, which has been further amended by the Bulletin on Matters Concerning Withholding of Income Tax of Non-resident Enterprises at Source issued by the State Taxation Administration in October 2017 and amended in June 2018, if a non-resident enterprise transfers the equity interests of a PRC resident enterprise indirectly by transfer of the equity interests of an offshore holding company (other than a purchase and sale of shares issued by a PRC resident enterprise in public stock market) without a reasonable commercial purpose, the PRC tax authorities have the discretion to reassess the nature of the transaction and the indirect equity transfer will be treated as a direct transfer. As a result, gains derived from such a transfer, which means the equity transfer price minus the cost of equity, will be subject to PRC withholding tax at a rate of up to 10%. Under the terms of the announcement, as amended, the transfer that meets all of the following conditions shall be directly deemed as having no reasonable commercial purposes: (i) more than 75% of the value of the equity interests of the offshore holding company are directly or indirectly derived from PRC taxable properties; (ii) at any time during the year before the indirect transfer, over 90% of the total properties of the offshore holding company are investments within PRC territory, or in the year before the indirect transfer, over 90% of the offshore holding company’s revenue is directly or indirectly derived from PRC territory; (iii) the function performed and risks assumed by the offshore holding company are insufficient to substantiate its corporate existence; or (iv) the foreign income tax imposed on the indirect transfer is lower than the PRC tax imposed on the direct transfer of the PRC taxable properties. There is uncertainty as to the interpretation and application of the aforementioned announcement, as amended. If an Indirect Transfer occurs for us, we and our non-PRC resident shareholders may be at risk of being taxed under such announcement, as amended, and we may be required to expend valuable resources to comply with such the announcement, as amended, or to establish that we should not be taxed under such announcement, as amended. 29 Table of Contents Any failure or perceived failure by us to comply with the anti-monopoly and unfair competition laws and regulations may result in penalties against us and could have an adverse effect on our business, financial condition and results of operations. The PRC government agencies have in recent years strengthened enforcement under a number of PRC laws and regulations including anti-monopoly and unfair competition laws and regulations. In addition to the PRC Anti-Monopoly Law amended in 2022, these include the PRC Anti-Unfair Competition Law as most recently amended in October 2025 and its interpretations issued in 2022, the Interim Measures on Online Anti-unfair Competition, which came into effect in September 2024, the Guidelines on Anti-Monopoly Issues in Platform Economy published in 2021, the Provisions on the Prohibition of Monopoly Agreements released in 2023, as amended in December 2025, as well as the Provisions on the Review of Concentration of Undertakings released in 2024. These laws and regulations set forth the merger control review process, impose filing requirements with the anti-monopoly authority and provide for penalties for failing to meet such requirements. Due to the uncertainties associated with the new and evolving legislative activities and varied local implementation practices of anti-monopoly and competition laws and regulations in the PRC, complying with the requirements of the amended PRC Anti-Monopoly Law, M&A Rules, merger control review rules, security review rules and other PRC regulations to complete such transactions could be time-consuming, and any required approval processes, including obtaining approval from the SAMR, may delay or inhibit our ability to complete merger transactions, which could affect our ability to expand our business or maintain our market share. In June 2025, the Standing Committee of the National People’s Congress amended the PRC Anti-unfair Competition Law which took effect in October 2025. The amended PRC Anti-unfair Competition Law imposes more obligations on platform operators, requiring platform operators to incorporate fair competition provisions in their platform service agreements and transaction rules and take necessary measures to promptly prohibit operators’ unfair competition practices on their platforms, and prohibiting platform operators from forcing operators on their platforms to sell goods at prices below cost. In February 2026, the SAMR published the Guidelines on Antitrust Compliance for Internet Platforms, setting forth comprehensive compliance management requirements for Internet platform operators. The SAMR, together with certain other PRC government authorities have been active in their oversight and the establishment of long-term mechanisms for fair market competition in the consumption industry. We cannot assure you that our business operations comply with anti-monopoly and unfair competition laws and regulations and authorities’ requirements in all respects. If any non-compliance is raised by the authorities and determined against us, we may be subject to fines and other penalties. PRC regulations establish complex procedures for some acquisitions of PRC companies by foreign investors, which could make it more difficult for us to pursue growth through acquisitions in China. The M&A Rules establish procedures and requirements that could make some acquisitions of PRC companies by foreign investors more time-consuming and complex, including requirements in some instances that the Ministry of Commerce be notified in advance of any change-of-control transaction in which a foreign investor takes control of a PRC domestic enterprise. In addition, national security review rules issued by the PRC government authorities in 2011 require acquisitions by foreign investors of domestic companies engaged in military-related or certain other industries that are crucial to national security to be subject to prior security review. According to the Measures for the Security Review of Foreign Investment promulgated by the National Development and Reform Commission and the Ministry of Commerce on December 19, 2020 and effective as of January 18, 2021, investments in military, national defense-related areas or in locations in proximity to military facilities, or investments that would result in acquiring the actual control of assets in certain key sectors, such as critical agricultural products, energy and resources, equipment manufacturing, infrastructure, transport, cultural products and services, information technology, internet products and services, financial services and technology sectors, are required to obtain approval from designated government authorities in advance. See also “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Foreign Investment in Value-Added Telecommunications Services.” Furthermore, according to the Overseas Listing Trial Measures, if a Chinese overseas listed company issues overseas listed securities to acquire assets, such issuance would be subject to filing requirements. Our ability to carry out our investment and acquisition strategy may be materially and adversely affected due to significant regulatory uncertainty as to the timing of receipt of approvals or completion of filings and whether we will be able to complete such investments and acquisitions in the future in a timely manner or at all. 30 Table of Contents PRC regulations relating to offshore investment activities by PRC residents may limit our PRC subsidiaries’ ability to increase their registered capital or distribute profits to us, limit our ability to inject capital into our PRC subsidiaries, or otherwise expose us to liabilities and penalties under PRC laws. The SAFE promulgated the Circular on Relevant Issues Concerning Foreign Exchange Control on Domestic Residents’ Offshore Investment and Financing and Roundtrip Investment through Special Purpose Vehicles on July 4, 2014. This circular requires PRC residents to register with local branches of SAFE in connection with their direct establishment or indirect control of an offshore entity for the purpose of overseas investment and financing, with assets or equity interests of onshore companies or offshore assets or interests held by the PRC residents, referred to in the circular as a “special purpose vehicle.” The circular further requires amendment to the registration in the event of any significant changes with respect to the special purpose vehicle, such as increases or decreases in capital contributed by PRC residents, transfers or exchanges of shares, mergers, divisions, or other material changes. The term “control” under the circular is broadly defined as the operation rights, beneficiary rights or decision-making rights acquired by PRC residents in special purpose vehicles or PRC companies by such means as acquisition, trust, proxy, voting rights, repurchase, convertible bonds or other arrangements. If our shareholders or beneficial owners who are PRC citizens or residents do not complete their registration with the local SAFE branches, our PRC subsidiaries may be prohibited from distributing their profits and proceeds from any reduction in capital, share transfer or liquidation to us, and we may be restricted in our ability to contribute additional capital to our PRC subsidiaries. Moreover, failure to comply with the various SAFE registration requirements described above could result in liabilities for our PRC subsidiaries under PRC laws for evasion of applicable foreign exchange restrictions, including (1) the requirement by SAFE to return the foreign exchange remitted overseas within a period specified by SAFE, with a fine of up to 30% of the total amount of foreign exchange remitted overseas and deemed to have been evasive and (2) in circumstances involving serious violations, a fine of no less than 30% of and up to the total amount of remitted foreign exchange deemed evasive. Furthermore, the persons-in-charge and other persons at our PRC subsidiaries who are held directly liable for the violations may be subject to criminal sanctions. We have requested all of our known current shareholders and/or beneficial owners to disclose whether they or their shareholders or beneficial owners fall within the ambit of this circular and other related rules, and urged such shareholders and beneficial owners, upon learning they are PRC residents, to make the necessary applications, filings and amendments as required under this circular and other related rules. However, we cannot assure you that they successfully amended their foreign exchange registrations with the local SAFE branch in compliance with applicable laws after our initial public offering. In addition, we may not be informed of the identities of all the PRC residents holding direct or indirect interests in our company, and we cannot compel our beneficial owners to comply with the requirements of this circular. As a result, we cannot assure you that all of our shareholders or beneficial owners who are PRC residents have complied with and will in the future comply with our requests to make or obtain any applicable registrations or comply with other requirements required by this circular or other related rules. A failure by any of our current or future shareholders or beneficial owners who are PRC residents to comply with the SAFE regulations may subject us to fines or other legal sanctions, restrict our cross-border investment activities, limit our PRC subsidiaries’ ability to make distributions or pay dividends or affect our ownership structure, which could adversely affect our business and prospects. Furthermore, since it is unclear how this circular and any future regulation concerning offshore or cross-border transactions will be interpreted, amended and implemented by the government authorities, we cannot predict how these regulations will affect our business operations or future strategy. For example, if we decide to acquire a PRC domestic company, either we or the owners of such company, as the case may be, may not be able to obtain the necessary approvals or complete the necessary filings and registrations required by the foreign exchange regulations. This may restrict our ability to implement our acquisition strategy and could adversely affect our business and prospects. 31 Table of Contents Failure to comply with PRC regulations regarding the registration requirements for share option plans may subject the PRC plan participants or us to fines and other legal or administrative sanctions. In February 2012, SAFE promulgated the Notices on Issues Concerning the Foreign Exchange Administration for Domestic Individuals Participating in Stock Incentive Plans of Overseas Publicly-Listed Companies, or the Stock Option Rules. Under the Stock Option Rules and other rules and regulations, PRC residents who participate in stock incentive plans in an overseas publicly-listed company are required to register with SAFE or its local branches and complete certain other procedures. Participants of a stock incentive plan who are PRC residents must retain a qualified PRC agent, which could be a PRC subsidiary of the overseas publicly-listed company or another qualified institution selected by the PRC subsidiary, to conduct the SAFE registration and other procedures with respect to the stock incentive plan on behalf of its participants. The participants must also retain an overseas entrusted institution to handle matters in connection with their exercise of stock options, the purchase and sale of corresponding stocks or interests and fund transfers. In addition, the PRC agent is required to amend the SAFE registration with respect to the stock incentive plan if there is any material change to the stock incentive plan, the PRC agent or the overseas entrusted institution or other material changes. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Employee Stock Option Plans.” We and our PRC employees who have been granted share options are subject to these regulations. Beijing Tuniu has registered with the Beijing Branch of SAFE as an agent in connection with an incentive compensation plan adopted by us in 2008, or the 2008 Plan, and a separate incentive compensation plan adopted by us in 2014, or the 2014 Plan, which was amended in November 2023 to extend the expiration date of the 2014 Plan from April 2023 to April 2034. We have advised our employees and directors participating in our share incentive plans to handle foreign exchange matters in accordance with the Stock Option Rules. However, we cannot assure you that the share option holders can successfully register with SAFE in full compliance with the Stock Option Rules for material changes of the granted share options. Failure of our PRC share option holders or restricted shareholders to complete their SAFE registrations or comply with other related PRC regulations in the process may subject these PRC residents to fines and legal sanctions and may also limit our ability to contribute additional capital into our PRC subsidiaries, limit our PRC subsidiaries’ ability to distribute dividends to us, or otherwise materially adversely affect our business. Our subsidiaries and the consolidated affiliated entities in China are subject to restrictions on paying dividends or making other payments to our holding company, which may restrict our ability to satisfy our liquidity requirements. We are a holding company incorporated in the Cayman Islands. We may need dividends and other distributions on equity from our PRC subsidiaries to satisfy our liquidity requirements. Current PRC regulations permit our PRC subsidiaries to pay dividends to us only out of their accumulated profits, if any, as determined in accordance with PRC accounting standards and regulations. In addition, our PRC subsidiaries are required to set aside at least 10% of their respective accumulated profits each year, if any, to fund certain reserve funds until the total amount set aside reaches 50% of their respective registered capital. Our PRC subsidiaries may also allocate a portion of its after-tax profits based on PRC accounting standards to employee welfare and bonus funds at their discretion. These reserves are not distributable as cash dividends. Furthermore, if our PRC subsidiaries incur debt on their own behalf in the future, the instruments governing the debt may restrict their ability to pay dividends or make other payments to us. In addition, the PRC tax authorities may require us to adjust our taxable income under the contractual arrangements among Beijing Tuniu, Nanjing Tuniu and the shareholders of Nanjing Tuniu in a manner that would materially and adversely affect Beijing Tuniu’s ability to pay dividends and other distributions to us. Any limitation on the ability of our subsidiaries to distribute dividends to us or on the ability of Nanjing Tuniu to make payments to us may restrict our ability to satisfy our liquidity requirements. The funds in our PRC subsidiaries or the consolidated affiliated entities in mainland China may not be available to fund operations or for other use outside of mainland China due to the interventions in, or the imposition of restrictions and limitations on, the ability of our holding company, our subsidiaries, or the consolidated affiliated entities by the PRC government on cash transfers. Although currently there are not equivalent or similar restrictions or limitations in Hong Kong or Macau on cash transfers in, or out of, our Hong Kong entities, if certain restrictions or limitations in mainland China were to become applicable to cash transfers in and out of Hong Kong entities in the future, the funds in our Hong Kong entities, likewise, may not be available to fund operations or for other use outside of Hong Kong. 32 Table of Contents We may not be able to obtain certain treaty benefits on dividends paid to us by our PRC subsidiaries through our Hong Kong subsidiary. Under the Enterprise Income Tax Law, dividends generated from retained earnings after January 1, 2008 from a PRC company and distributed to a foreign parent company are subject to a withholding tax rate of 10% unless the foreign parent’s jurisdiction of incorporation has a tax treaty with China that provides for a preferential withholding arrangement. Pursuant to the Arrangement between Mainland China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and Prevention of Fiscal Evasion with respect to Taxes on Income, which became effective on December 8, 2006, a company incorporated in Hong Kong, such as Tuniu (HK) Limited, will be subject to withholding income tax at a rate of 5% on dividends it receives from its PRC subsidiaries, if it holds a 25% or more interest in that particular PRC subsidiary, or 10% if it holds less than a 25% interest in that subsidiary. However, the State Taxation Administration promulgated STA Circular 9 on February 3, 2018, which became effective from April 2018. Circular 9 stipulates that in determining whether a non-resident enterprise has the status as a beneficial owner, comprehensive analysis shall be conducted based on the factors provided in Circular 9 and the actual circumstances of the specific case shall be taken into consideration. Specifically, Circular 9 expressly excludes an agent or a designated payee from being considered as a “beneficial owner.” As a result, although our PRC subsidiaries, Beijing Tuniu and Tuniu Nanjing Information Technology, are currently wholly owned by our Hong Kong subsidiary, Tuniu (HK) Limited, we cannot assure you that we would be entitled to the tax treaty benefits and enjoy the favorable 5% rate applicable under the arrangement between mainland China and Hong Kong. If Tuniu (HK) Limited is not recognized as the beneficial owner of the dividends paid to it by Beijing Tuniu or Tuniu Nanjing Information Technology, such dividends will be subject to a normal withholding tax of 10% as provided by the Enterprise Income Tax Law. Discontinuation or revocation of any of the preferential tax treatments and government subsidies or imposition of any additional taxes or surcharges could adversely affect our financial condition and results of operations. Our PRC subsidiaries are incorporated in the PRC and governed by applicable PRC tax laws and regulations. The Enterprise Income Tax Law and its implementation rules have adopted a uniform statutory enterprise income tax rate of 25% to all enterprises in China, including foreign-invested enterprises. The Enterprise Income Tax Law and its implementation rules also permit qualified “high and new technology enterprises,” or HNTEs, to enjoy a preferential enterprise income tax rate of 15% upon filing with the tax authorities. The qualification as a HNTE is generally effective for a term of three years and the renewal of such qualification is subject to review by the authorities in China. Nanjing Tuniu originally obtained its HNTE certificate in 2010 and successfully obtained its fourth renewal of such a certificate in November 2025, which expires in 2028. Tuniu Nanjing Information Technology originally obtained its HNTE certificate in 2017 and successfully obtained its second renewal of such a certificate in December 2023, which expires in 2026. Therefore, Nanjing Tuniu and Tuniu Nanjing Information Technology were eligible to enjoy a preferential tax rate of 15% in 2024 to the extent that they have taxable income under the Enterprise Income Tax Law, as long as they maintain the HNTE qualifications and duly conduct the enterprise income tax filing procedures with the tax authorities. If Nanjing Tuniu and Tuniu Nanjing Information Technology fail to maintain or renew their HNTE qualifications when their current terms expire, they will lose the current preferential tax treatments and their applicable enterprise income tax rates may increase to 25%, which could have an adverse effect on our financial condition and results of operations. Beijing Tuniu originally obtained its HNTE certificate in 2018, which expired in 2020. As a result, the applicable enterprise tax rate for Beijing Tuniu has been restored to 25% since 2021. However, since Beijing Tuniu has large amount of accumulated loss in previous years, the increased enterprise income tax rate would not result in an immediate adverse effect on our financial condition. In addition, our PRC subsidiaries have received various financial subsidies from PRC local government authorities. Preferential tax treatments and financial subsidies are subject to review and may be adjusted or revoked at any time in the future. The discontinuation of any preferential tax treatments or financial subsidies or imposition of any additional taxes or surcharges could adversely affect our financial condition and results of operations. Fluctuations in exchange rates could have a material adverse effect on our results of operations and the value of your investment. The conversion of Renminbi into foreign currencies, including U.S. dollars, is based on rates set by the People’s Bank of China. The Renminbi has fluctuated against the U.S. dollar, at times significantly and unpredictably. The value of Renminbi against the U.S. dollar and other currencies is affected by changes in China’s political and economic conditions and by China’s foreign exchange policies, among other things. We cannot assure you that Renminbi will not appreciate or depreciate significantly in value against the U.S. dollar in the future. It is difficult to predict how market forces or PRC or U.S. government policy may impact the exchange rate between Renminbi and the U.S. dollar in the future. 33 Table of Contents Any significant appreciation or depreciation of Renminbi may materially and adversely affect our revenues, earnings and financial position, and the value of, and any dividends payable on, our ADSs in U.S. dollars. For example, a significant depreciation of Renminbi against the U.S. dollar may significantly reduce the U.S. dollar equivalent of our earnings, which in turn could adversely affect the price of our ADSs. Very limited hedging options are available in China to reduce our exposure to exchange rate fluctuations. To date, we have not entered into any material hedging transactions in an effort to reduce our exposure to foreign currency exchange risk. While we may decide to enter into hedging transactions in the future, the availability and effectiveness of these hedges may be limited and we may not be able to adequately hedge our exposure or at all. In addition, our currency exchange losses may be magnified by PRC exchange control regulations that restrict our ability to convert Renminbi into foreign currency. As a result, fluctuations in exchange rates may have a material adverse effect on your investment. Regulation and censorship of information distribution over the internet in China may adversely affect our business, and we may be liable for information displayed on, retrieved from or linked to our website. The PRC government has adopted regulations governing internet access and the distribution of information over the internet. Under these regulations, internet content providers and internet publishers are prohibited from posting or displaying over the internet content that, among other things, violates PRC laws and regulations, impairs the national dignity of China or the public interest, or is reactionary, obscene, superstitious, fraudulent or defamatory. Failure to comply with these regulations may result in confiscation of income, fines, suspension of business, revocation of licenses to provide internet content and other licenses, the closure of the concerned websites, which could materially and adversely affect our business, financial conditions and results of operations. A website operator may also be held liable for such censored information displayed on or linked to its website. For a detailed discussion, see “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Information Security and Censorship.” We have a team dedicated to screening and monitoring content published on our online platform and removing prohibited content. However, we may have difficulty identifying and removing all illegal content displayed on or linked to our website, which could expose us to the penalties described above. We face certain risks relating to the real properties that we lease. We lease real properties from third parties primarily for our office use in the PRC. Our leasehold interests in a number of these leased properties may be defective as a result of the lessors’ lack of proper title or right to lease. As a result, we cannot assure you that our leasehold interests will not be challenged. In addition, we have not registered the vast majority of our lease agreements with the PRC government authorities as required by PRC law, and although failure to do so does not in itself invalidate the leases, we may not be able to defend these leases against bona fide third parties. As of the date of this annual report, we are not subject to any material actions, claims or investigations pending or threatened in writing by government authorities or third parties with respect to defects in our leased properties. However, if third parties who purport to be property owners or beneficiaries of the mortgaged properties challenge our right to lease these properties, we may not be able to protect our leasehold interests and may be ordered to vacate the affected premises, which could materially and adversely affect our business and results of operations. In addition, we may not be able to successfully extend, renew or terminate these leases upon expiration of the current term on commercially reasonable terms or at all. These could disrupt our operations and result in significant relocation expenses, as well as may result in litigation or claims against us, which could adversely affect our business, financial condition and results of operations. It may be difficult for overseas regulators to conduct investigation or collect evidence within China. Shareholder claims or regulatory investigation that are common in the United States generally are difficult to pursue as a matter of law or practicality in the jurisdiction where we operate. Specifically, although the authorities in China may establish a regulatory cooperation mechanism with the securities regulatory authorities of another country or region to implement cross-border supervision and administration, such cooperation with the securities regulatory authorities in the Unities States may not be efficient in the absence of a mutual and practical cooperation mechanism. Furthermore, according to Article 177 of the PRC Securities Law, which became effective in March 2020, no overseas securities regulator is allowed to directly conduct investigations or evidence collection activities within the territory of the PRC. While the detailed interpretation of or implementation rules under Article 177 of the PRC Securities Law have yet to be promulgated, the inability of an overseas securities regulator to directly conduct investigation or evidence collection activities within China may further increase difficulties faced by you in protecting your interests. See also “—Risks Related to Our ADSs and Class A Ordinary Shares—You may face difficulties in protecting your interests, and your ability to protect your rights through U.S. courts may be limited, because we are incorporated under Cayman Islands law” for risks associated with investing in us as a Cayman Islands company. 34 Table of Contents Risks Related to Our Business and Industry Declines or disruptions in the leisure travel industry may materially and adversely affect our business and results of operations. We are dependent on the leisure travel industry for substantially all of our revenues. The leisure travel industry is dependent on personal discretionary spending levels, which may be materially and adversely affected by economic downturns and recessions. Although the leisure travel industry in China has had periods of rapid growth, any severe or prolonged slowdown in the Chinese economy could reduce expenditures for leisure travel, which in turn may adversely affect our financial condition and results of operations. See “—Risks Related to Doing Business in China—A severe or prolonged downturn in the Chinese or global economy could materially and adversely affect the leisure travel industry and our business, results of operations and financial condition.” Our business may also be significantly affected by other factors that tend to reduce leisure travel, including increased prices in hotel, air-ticketing, fuel or other travel-related sectors, work stoppages or labor unrest at airlines, increased occurrences of travel-related accidents, outbreaks of other contagious diseases, natural disasters and extreme unexpected bad weather, terrorist attacks and political unrest. The travel industry was negatively affected by the outbreak and spread of the COVID-19 pandemic across the world from 2020 to 2022, which had a negative impact on our target customers. See “— We face risks related to natural disasters and health epidemics.” In addition, our overseas leisure travel business may be negatively affected by any adverse changes in the visa policies of foreign countries that makes it difficult for Chinese nationals to obtain tourist visas. Terrorist attacks or threats of terrorist attacks, political unrest, wars, the imposition of taxes or surcharges by regulatory authorities and regional hostilities may also reduce the demand for overseas tours. For example, the Russia-Ukraine conflict and the Hamas-Israel conflict negatively impacted travel demand for the tours to the affected regions. We have little or no control over the occurrence of such declines or disruptions, which could result in a decrease in demand for our travel products and services. This decrease in demand, depending on the scope and duration, could materially and adversely affect our business and results of operations over the short and long term. We face risks related to natural disasters and health epidemics. Our business activities could be materially and adversely affected by natural disasters, health epidemics or other public safety concerns affecting the PRC, and particularly Nanjing. Natural disasters may give rise to server interruptions, breakdowns, system failures, technology platform failures or internet failures, which could result in loss or corruption of data or software or hardware malfunctions, as well as adversely affect our ability to operate our platforms and provide services. Our business could also be adversely affected if our employees are affected by health epidemics, including COVID-19, Ebola virus disease, H1N1 flu, H7N9 flu, avian flu or Severe Acute Respiratory Syndrome, or SARS. In addition, our business operation, financial condition, results of operations and cash flows could be adversely affected to the extent that any health epidemic harms the Chinese economy in general. Our headquarter is located in Nanjing, where most of our directors and management and the majority of our employees currently reside. Most of our hardware systems and back-up systems are hosted in facilities located in Nanjing. Consequently, if any natural disasters, health epidemics or other public safety concerns were to affect Nanjing, our operations may experience material disruptions, which may materially and adversely affect our business, financial condition and results of operations. If we do not continue to provide competitive travel products and services, we may not be able to attract new customers or retain existing customers, and our business, financial condition and results of operations could suffer. Our success depends on our ability to attract new customers and retain existing customers, which in turn requires our continual provision of a wide array of competitive travel products and services. Participants in the online travel industry are continually developing new travel products and services in response to both the increasing customer demand and the changing market environment. We strive to stay abreast of emerging and rapidly changing customer preferences and to anticipate trends that will appeal to existing and potential customers. We will also continue to invest in research and development in order to constantly improve the speed, accuracy and comprehensiveness of our online platform. If we fail to keep improving our travel products and services and platform at a competitive pace, we may lose customers to our competitors and be unable to attract new customers. In addition to packaged tours, we provide other travel-related services, such as sales of tourist attraction tickets, visa application services, hotel booking services, air ticketing services, train ticketing services, car rental services and insurance services. We intend to further broaden our product selection by extending our coverage of departing cities and travel destinations as well as offering more departure time selections. If we fail to consistently source quality travel products and services tailored to accommodate our customers’ changing needs and preferences, we may not be able to sell additional products and services to our current customers, retain our current customers or attract new customers, and our business, financial condition and results of operations will be materially and adversely affected. 35 Table of Contents Failure to maintain the quality of customer services could harm our reputation and our ability to retain existing customers and attract new customers, which may materially and adversely affect our business, financial condition and results of operations. Our business is significantly affected by the overall size of our customer base, which in turn is determined by, among other factors, their experience with our customer service. As such, the quality of customer service is critical to retaining our existing customers and attracting new customers. If we fail to provide quality customer service, our customers may be less inclined to book travel products and services with us or recommend us to new customers, and may switch to our competitors. Failure to maintain the quality of customer service could harm our reputation and our ability to retain existing customers and attract new customers, which may materially and adversely affect our business, financial condition and results of operations. We may not be able to adequately control and ensure the quality of travel products and services sourced from travel suppliers. If there is any deterioration in the quality of their performance, our customers may seek damages from us and not continue using our online platform. Our ability to ensure satisfactory customer experiences largely depends on travel suppliers providing high-quality travel products and services. Our reputation and brand will be negatively affected if travel suppliers fail to provide quality travel products and services. The actions we take to monitor and enhance the performance of travel suppliers may be inadequate in the timely discovery of quality issues. There have been customer complaints and litigation against us due to travel suppliers’ failure to provide satisfactory travel products or services. If our customers are dissatisfied with the travel products and services provided, they may reduce their use of, or completely forgo, our online platform, and may even demand refunds of their payments to us or claim compensation from us for the damages suffered as a result of travel suppliers’ performance or misconduct, which could materially and adversely affect our business, financial condition and results of operations. We incurred losses in the past and may not be able to maintain profitability. We historically incurred net losses, including net losses of RMB101.1 million in 2023. Our such net losses were partially attributable to impairment of goodwill. We recorded net income of RMB83.7million and RMB29.7 in 2024 and 2025, respectively. However, we cannot assure that we will be able to maintain profitability. Our ability to achieve profitability is also affected by various factors that are beyond our control. For example, our revenues and profitability depend on the development of the online leisure travel industry in China and consumers’ preference to make travel bookings online. We cannot assure you that the online travel-booking market in China will grow to exceed its current market size or that consumers will further increase their spending on online leisure travel booking. Factors negatively affecting travel suppliers’ profitability will in turn adversely affect our financial condition and results of operations. If we are unsuccessful in addressing any of these risks and uncertainties, our business may be materially and adversely affected. We face intense competition and may not be able to compete successfully against existing and new competitors. We operate in China’s highly competitive travel industry. We compete not only with other online travel companies, but also traditional travel service providers and tour operators, airlines and hotels and large, established internet companies. See “Item 4. Information on the Company—B. Business Overview—Competition.” Some of our current and potential competitors may have greater financial, marketing and other resources than we do. In addition, some of our competitors may be acquired by, receive investments from or enter into strategic relationships with larger, well-established and well-financed companies or investors. Furthermore, our business model causes us to maintain a cooperative-competitive relationship with some of our competitors, especially tour operators, who also supply travel products to customers directly or through our competitors’ platforms. Many of our competitors have launched, and may continue to launch, aggressive advertising campaigns, special promotions and other marketing activities to promote their brands, attract new customers or increase their market share. In response, we have taken and may continue to take similar measures and as a result have incurred and may continue to incur significant expenses, which in turn could negatively affect our operating margin in the quarters or years when such promotional activities are carried out. We cannot assure you that we will be able to successfully compete against existing or new competitors. If we are not able to compete successfully, we may lose our market share and our business, financial condition and results of operations may be materially and adversely affected. 36 Table of Contents If we fail to enhance our brand recognition, we may face difficulty in retaining existing customers and attracting new customers and travel suppliers, and our business may be harmed. Recognition and reputation of our “Tuniu” brand among our targeted customers and travel suppliers have contributed significantly to our growth. We have made continual investments in enhancing awareness of our brand among customers and travel suppliers since our inception. Our brand recognition and reputation also depend on our ability to provide high-quality customer services, address customer needs and handle customer complaints properly, maintain our relationships with travel suppliers and provide a user-friendly online platform. See “—Risks Related to Our Business and Industry—Failure to maintain the quality of customer services could harm our reputation and our ability to retain existing customers and attract new customers, which may materially and adversely affect our business, financial condition and results of operations”, “—Risks Related to Our Business and Industry—If we are unable to maintain existing relationships with travel suppliers, or develop relationships with new travel suppliers on favorable terms or terms similar to those we currently have, our business and results of operations may suffer” and “—Risks Related to Our Business and Industry—The proper functioning of our online platform, including our web and mobile platforms, and management systems is essential to our business. Any failure to maintain their satisfactory performance will materially and adversely affect our business, reputation, financial condition and results of operations.” Failure to maintain the strength of our brand could reduce the number of customers and deteriorate our relationships with travel suppliers. In addition, some of our competitors have well-established brands in the travel industry, and may have more financial and other resources to advertise and promote their brands. Therefore, we expect to continue incurring advertising and marketing expenditures and use other resources to maintain and increase our brand recognition. Our marketing costs may also increase as a result of inflation of media pricing in China, including costs for purchasing search engine keywords and placing online and offline advertisements. If we fail to maintain and increase our brand recognition in a cost-effective manner, our financial condition and results of operations may be materially and adversely affected. We are exposed to proceedings or claims arising from travel-related accidents or customer misconduct during their travels, the occurrence of which may be beyond our control. Accidents are a leading cause of mortality and morbidity among tourists. We are exposed to risks of our customers’ claims arising from or relating to travel-related accidents. As we enter into contracts with our customers directly, our customers typically take actions against us for the damages they suffer during their travels. However, such accidents may result from the negligence or misconduct of travel suppliers or other service providers, over which we have no or limited control. See also “—Risks Related to Our Business and Industry—We may not be able to adequately control and ensure the quality of travel products and services sourced from travel suppliers. If there is any deterioration in the quality of their performance, our customers may seek damages from us and not continue using our online platform.” We maintain insurance coverage for our liabilities as a travel company, and are indemnified by the insurance company/companies for the damages claimed by our customers. However, there is no assurance that such insurance or indemnification will be sufficient to cover all of our losses. In addition, some of the travel-related accidents result from adventure activities undertaken by our customers during their travels, such as scuba diving, white water rafting, wind surfing and skiing. Furthermore, we may be affected by our customers’ misconduct during their travels, over which we have no or limited control. Such accidents and incidents of misconduct, even if not resulting from our negligence or misconduct, or the travel suppliers’ negligence or misconduct, could create a public perception that we are less reliable than our competitors, which would harm our reputation, and could adversely affect our business and results of operations. 37 Table of Contents The proper functioning of our online platform, including our web and mobile platforms, and management systems is essential to our business. Any failure to maintain their satisfactory performance will materially and adversely affect our business, reputation, financial condition and results of operations. Availability, satisfactory performance and reliability of our online platform, including our web and mobile platforms, are critical to our ability to attract and retain customers and provide quality travel products and services to our customers. Any unavailability or slowdown of our online platforms would reduce the number of our customers and their travel bookings. Further, some telecommunications carriers have system constraints that can affect our customer experience. For example, if a large number of customers use the same telecommunications carrier at the same time for services requiring a large amount of data transmission, the customers could experience reduced speed or other technical issues due to the carrier’s capacity constraints, over which we have no control. Our servers may also be vulnerable to computer viruses, physical or electronic break-ins or other potential disruptions, which could lead to interruptions, delays, loss of data or the inability to accept and process customer queries or bookings. We may also experience interruptions caused by reasons beyond our control such as power outages. Unexpected interruptions could damage our reputation and result in a material decrease of our revenues. In addition, our online platform may contain undetected errors or “bugs” that could adversely affect its performance. Our mobile platform forms an important and integral part of our customers’ research on travel-related information. It is difficult to predict the problems we may encounter in developing mobile applications for newly released mobile devices and platforms, and we may need to devote significant resources to the development, support and maintenance of such applications. We are dependent on the interoperability of providing our products and services on popular mobile operating systems that we do not control, such as Android and iOS, and any changes in such systems that degrade the accessibility of our products and services or give preferential treatment to competing products and services could adversely affect the usability of our products and services on mobile devices. In addition, we rely upon third-party mobile application stores for users to download our mobile applications. As such, the promotion, distribution and operation of our mobile applications are subject to app stores’ standard terms and policies for app developers. As a result, we may fail to attract and retain a significant portion of the growing number of customers who search for and book travel products and services through mobile devices. We may also experience difficulties monetizing customer traffic to our mobile platform. In addition, we rely significantly on our proprietary N-Booking system and other management systems to facilitate and process transactions. We may in the future experience system interruptions that prevent us from efficiently fulfilling bookings or providing services and support to our customers or travel suppliers. Any interruptions, outages or delays in our systems, or deterioration in their performance, could impair our ability to process transactions and decrease the quality of our services to our customers or travel suppliers. If we were to experience frequent or persistent system failures, our reputation and brand would be harmed. If we are unable to maintain existing relationships with travel suppliers, or develop relationships with new travel suppliers on favorable terms or terms similar to those we currently have, our business and results of operations may suffer. Our business is dependent on our ability to maintain our relationships and arrangements with existing travel suppliers. For most of our suppliers, we do not prohibit them from developing business relationships with our competitors or selling, through their direct sales, travel products that are the same as or similar to those they supply to us. If we are unable to maintain satisfactory relationships with our existing travel suppliers, or if travel suppliers establish similar or more favorable relationships with our competitors, or if travel suppliers increase their competition with us through their direct sales, we may not have the necessary supply to meet the needs of our customers, or we may not obtain satisfactory rates. We do not enter into any long-term agreements with travel suppliers. We cannot assure you that travel suppliers will renew their agreements with us in the future on favorable terms or terms similar to those we have currently agreed upon. Travel suppliers may increase the prices that they charge us or the deposits that they require from us. As a result, the amount, pricing and breadth of travel products and services that we are able to offer may be reduced, and our business and results of operations could be materially and adversely affected. Furthermore, in order to grow our business, we will need to develop relationships with new travel suppliers of good quality. We cannot assure you that we will be able to identify appropriate travel suppliers or enter into arrangements with those travel suppliers on favorable terms or at all. Any failure to do so could harm the growth of our business and adversely affect our financial condition and results of operations. 38 Table of Contents Our quarterly results are likely to fluctuate because of seasonality in the leisure travel industry in China. Our business experiences fluctuations, reflecting seasonal variations in demand for leisure travel services. Sales of leisure travel products and services generally will increase during holiday periods and decrease during off-peak times, while prices of leisure travel products and services are subject to fluctuation between peak seasons and low seasons. For example, the third quarter of each year generally contributes the highest percentage of our annual revenues, because many of our customers tend to travel during summer holidays in July and August. Consequently, our results of operations may fluctuate from quarter to quarter. If we are unable to identify, attract, hire, train and retain key individuals and highly skilled employees, our business may be adversely affected Our future performance depends on the continued service of our senior management, in particular, Mr. Dunde Yu, our founder, chairman and chief executive officer. If one or more of our key executives were unable or unwilling to continue in their present positions, we may not be able to replace them easily, our future growth may be constrained, our business may be disrupted and our financial condition and results of operations may be materially and adversely affected. There is no assurance that we can retain their services and there can be no assurance that they will not compete against us. If our business expands, we will need to hire additional employees, including supplier management personnel to maintain and expand our travel supplier network, information technology and engineering personnel to maintain and expand our online platform and customer service personnel to serve an increasing number of customers. If we are unable to identify, attract, hire, train and retain sufficient employees in these areas, our customers may not have satisfactory experiences with us and may turn to our competitors, which may adversely affect our business and results of operations. We may be subject to legal or administrative proceedings regarding our travel products and services, information provided on our online platform or other aspects of our business operations, which may be time-consuming to defend and affect our reputation. From time to time, we have become and may in the future become a party to various legal or administrative proceedings arising in the ordinary course of our business, including breach of contract claims, anti-competition claims and other matters. Such proceedings are inherently uncertain and their results cannot be predicted with certainty. Regardless of the outcome and merit of such proceedings, any such legal action could have an adverse impact on our business because of defense costs, negative publicity, diversion of management’s attention and other factors. In addition, it is possible that an unfavorable resolution of one or more legal or administrative proceedings, whether in the PRC or in another jurisdiction, could materially and adversely affect our financial position, results of operations or cash flows in a particular period or damage our reputation. In addition, our online platform contains information about our travel products and services, vacation destinations and other travel-related topics. It is possible that our customers would take action against us in the event that any content accessible on our online platform were to contain errors or false or misleading information. We may be subject to detrimental adverse publicity, malicious allegations or other conduct by individuals or entities, which could harm our reputation, adversely affect our business and the trading price of our ADSs. We have been, and in the future may be, the target of adverse publicity, malicious allegations or other detrimental conduct by individuals or entities. Such allegations, directly or indirectly against us, may be posted in internet chat-rooms, on blogs, or on any website or mobile applications by anyone on an anonymous basis. We may be required to spend significant time and incur substantial costs in response to such allegations or other detrimental conduct, and there is no assurance that we will be able to conclusively refute each of them within a reasonable period of time, or at all. Our reputation may be harmed as a result of the public dissemination of malicious allegations about our personnel, business, operations, accounting, prospects or business ethics, which in turn could adversely affect our business and the trading price of our ADSs. 39 Table of Contents If the fragmented travel industry in China becomes consolidated, our business, financial condition and results of operations may be adversely affected. China’s enormous size and population, imbalanced economic development and differences in consumer behavior across the country have created a highly fragmented and diverse travel industry. In recent years, customers have been shifting from highly fragmented traditional offline travel companies to travel websites for a wider product selection and greater convenience. If, however, traditional tour operators form alliances, or merge or consolidate among themselves, or if one of the travel suppliers is acquired by another company with which we do not have a relationship, we may not be able to maintain our strength in offering a wider selection of travel products and services as compared to traditional travel companies, and our business, financial condition and results of operations may be adversely affected. We may not be able to prevent others from using our intellectual property, which may harm our business and expose us to litigation. We regard our intellectual property as critical to our success. We rely primarily on a combination of copyright, software registration, trademark, trade secret and unfair competition laws and contractual rights, such as confidentiality agreements with our employees and others, to protect our intellectual property rights. The protection of intellectual property rights in China may not be as effective as that in the United States. Unauthorized use or other misappropriation of our technologies would enable third parties to benefit from our technologies without paying us, or enable our competitors to offer travel products and services that are comparable to or better than ours. From time to time, we may have to enforce our intellectual property rights through litigation. Such litigation may result in substantial costs and the diversion of resources and management attention. If we are not successful in protecting our intellectual property, our business, financial condition and results of operations may be materially and adversely affected. Claims by third parties that we infringe on their intellectual property rights could lead to government administrative actions and result in significant costs and have a material adverse effect on our business, financial condition and results of operations. We cannot be certain that our operations or any aspects of our business do not or will not infringe upon copyrights or other intellectual property rights held by third parties. We have been in the past, and may be from time to time in the future, subject to legal proceedings, claims or government administrative actions relating to alleged infringement on copyrights or other intellectual property rights held by third parties in relation to the content on our online platform or intellectual property rights otherwise used in our operation. For example, our website may be found to contain pictures that infringe on copyrights of third parties or hotel reviews that are third parties’ proprietary information. In addition, some of the software that we are currently using in our business may infringe on third parties’ copyrights. If we are found to have infringed on the intellectual property rights of others, we may be subject to liability for our infringement activities or prohibited from using such intellectual property, and we may incur licensing fees. Successful infringement or licensing claims made against us may result in significant monetary liabilities and may materially disrupt our business and operations by restricting or prohibiting our use of the intellectual property in question. Moreover, regardless of whether we successfully defend against such claims, we could suffer negative publicity and our reputation could be severely damaged. Any of these events could have a material and adverse effect on our business, financial condition and results of operations. In addition, user-generated content on our online platform may contain or provide links to information that infringes on the copyrights or other intellectual property rights of third parties or violates applicable rules or regulations in relation to censorship, or we may use the user-generated content in a way that infringes on the rights of the users or third parties. Any claims, with or without merit, could be time-consuming to defend, result in litigation and divert management’s attention and resources. 40 Table of Contents The successful operation of our business depends upon the performance and reliability of the internet infrastructure and telecommunications networks in China. Our business depends on the performance and reliability of the internet infrastructure and telecommunications networks in China. Almost all access to the internet is maintained through state-owned telecommunications operators under the administrative control and regulatory supervision of the Ministry of Industry and Information Technology. In addition, the national networks in China are connected to the internet through international gateways controlled by the PRC government. These international gateways are the only channels through which domestic users can connect to the internet. We rely on a limited number of telecommunications service providers, primarily China Telecom and China Unicom, to provide us with data communications capacity. We, our customers or travel suppliers, may not have access to alternative networks in the event of disruptions, failures or other problems with China’s internet infrastructure. With the expansion of our business, we may be required to upgrade our technology and infrastructure to keep up with the increasing traffic on our online platform. However, we have no control over the costs of the services provided by telecommunications service providers. If the prices we pay for telecommunications and internet services rise significantly, our results of operations may be materially and adversely affected. If internet access fees or other charges to internet users increase, the number of internet users may decline and our business may be harmed. Moreover, if we are not able to renew services agreements with the telecommunications carriers when they expire and are not able to enter into agreements with alternative carriers on commercially reasonable terms or at all, the quality and stability of our online platform may be adversely affected. We are subject to payment-related risks. We enable our customers to make payments through our website by working with various third-party payment processing service providers. As we rely on third parties to provide payment processing services, including processing payments made with credit cards and debit cards, it could disrupt our business if these companies become unwilling or unable to provide these services to us. Additionally, the acceptance and processing of various payment methods are subject to certain laws and regulations, and require payment of interchange and other fees. To the extent there are increases in any payment processing fees or any material changes in the payment ecosystem, such as delays in receiving payments from payment processors or changes to laws and regulations related to payment processing, our revenues, operating expenses and results of operations could be adversely affected. We may be subject to human error, fraud and other illegal activities in connection with third-party payment services. If our or our third-party payment processing service providers’ data security systems are breached or compromised, we may lose our ability to accept credit and debit card payments from our customers, and we may be subject to claims for damages from our customers and third parties, all of which could adversely and materially affect our reputation as well as our results of operations. We may also be subject to various laws, regulations and requirements governing electronic fund transfers and payment, which could change or be reinterpreted to make it difficult or impossible for us to comply with. If we fail to comply with these laws and regulations, we may be subject to fines, higher transaction fees, and even lose our ability to accept credit and debit card payments from our users, process electronic fund transfers or facilitate other types of payments. If any of the above were to occur, we may lose users as they may be discouraged from purchasing products or services on our platform, which may adversely affect our business and results of operations. If we fail to adopt new technologies or adapt our online platform and management systems to changing user requirements, increasing traffic or emerging industry standards, our business may be materially and adversely affected. The online travel industry is subject to rapid technological changes. To remain competitive, we must continue to enhance and improve the responsiveness, functionality and features of our online platform. The online travel industry is also characterized by rapid technological evolution and changes in customer requirements and preferences. Our success will depend, in part, on our ability to identify, develop, acquire or license leading technologies useful in our line of business and respond to technological advances and emerging industry standards and practices in a cost-effective and timely manner. The development of our online platform and other proprietary technology entails significant technical and business risks. In addition, the widespread adoption of new internet, networking or telecommunications technologies or other technological changes could require substantial expenditures to modify or adapt our infrastructure. We may not be able to use new technologies effectively or adapt our online platform, proprietary technologies and operating systems to the requirements of our customers and travel suppliers or emerging industry standards. If we are unable to adapt in a cost-effective and timely manner to changing market conditions or user requirements, whether for technical, legal, financial, or other reasons, our business may be materially and adversely affected. 41 Table of Contents Our business may be harmed if we are unable to upgrade our systems and infrastructure quickly enough to accommodate increasing traffic levels, to avoid obsolescence, or to successfully integrate any newly developed or purchased technologies with our existing systems. Capacity constraints could cause unanticipated system disruptions, slower response times, poor customer experience, impaired quality and speed of reservations and confirmations and delays in reporting accurate financial and operating information. These factors could cause us to lose customers. Additionally, we will continue to upgrade and improve our technology infrastructure to support our business growth. However, we cannot assure you that we will be successful in executing these system upgrades and improvement strategies. In particular, our systems may experience interruptions during upgrades, and any new technologies or infrastructure may not be fully integrated with our existing systems on a timely basis, or at all. If our existing or future technology infrastructure does not function properly, it could cause system disruptions and slow response times that affect data transmission, which in turn could materially and adversely affect our business. Our business generates and processes a large amount of data, and we are required to comply with PRC and other applicable laws relating to privacy and cybersecurity. The improper use or disclosure of data could have a material and adverse effect on our business and prospects. Our business generates and processes a large quantity of data. We face risks inherent in handling and protecting large volume of data. In particular, we face a number of challenges relating to data from transactions and other activities on our platforms, including: ● protecting the data in and hosted on our system, including against attacks on our system by outside parties or fraudulent behavior or improper use by our employees; ● addressing concerns related to privacy and sharing, safety, security and other factors; and ● complying with applicable laws, rules and regulations relating to the collection, use, storage, transfer, disclosure and security of personal information, including any requests from regulatory and government authorities relating to these data. Data security and data protection compliance receives heightened attention from domestic and global regulators and attracts great public scrutiny, which could increase our compliance costs going forward and subject us to heightened risks and challenges associated with data security and protection. If we are unable to manage these risks, we could become subject to penalties, including fines, suspension of business and revocation of required licenses, and our reputation and results of operations could be materially and adversely affected. The PRC regulatory and enforcement regime with regard to data security and data protection is evolving and may be subject to different interpretations or significant changes. Different PRC regulatory bodies, including the Standing Committee of the National People’s Congress, the Ministry of Industry and Information Technology, the Cyberspace Administration of China, the Ministry of Public Security and the SAMR, have enforced data privacy and protections laws and regulations with varying standards and applications. See “Item 4. Information on the Company—B. Business Overview—PRC Regulation—Regulations on Information Security and Censorship” and “ - Regulations on Internet Privacy”. The following summarizes key recent PRC regulatory activities in this area: The Cybersecurity Review Measures, which were promulgated in December 2021 and became effective in February 2022, subject critical information infrastructure operators that procure internet products and services to the cybersecurity review if their activities affect or may affect national security. These measures require critical information infrastructure operators or network platform operators that hold personal information of over one million users to apply with the Cybersecurity Review Office for a cybersecurity review before any public offering at a foreign stock exchange. As of the date of this annual report, we have not been informed, approached or designated as a critical information infrastructure operator under the applicable PRC laws and regulations by any PRC government authorities. The exact scope of “critical information infrastructure operators” under the current regulatory regime remains subject to interpretation by the PRC government authorities who may have wide discretion in the interpretation and enforcement of the applicable laws. Therefore, it is uncertain whether we would be deemed to be a critical information infrastructure operator under PRC law. If we are deemed to be a critical information infrastructure operator under the PRC cybersecurity laws and regulations, we may be subject to obligations in addition to what we have fulfilled under the PRC cybersecurity laws and regulations. 42 Table of Contents The Administrative Regulations on Cyber Data Security, or the Cyber Data Security Regulations, which came into effect in January 2025 requires companies to identify and report the type of important data involved in their business. This new regulation, along with the Data Security Law which took effect in September 2021, impose additional obligations on important data processors, including designating and specifying persons and management bodies responsible for data security, implementing regular data security risk assessment and other data protection measures, and submitting annual risk assessment reports to relevant authorities. Furthermore, the Cyber Data Security Regulations require that cyber data processors conducting data processing activities that affect or may affect national security shall undergo a national security review in accordance with the relevant regulations. However, these regulations provides no further explanation or interpretation for “affect or may affect national security”. Considering the type and nature of the personal information we gather is of relatively low national security significance, the risk of us being required to undertake national review under the Data Security Regulations is relatively low. However, we cannot assure you that relevant governmental authorities will not interpret the laws and regulations in ways that may negatively affect us. Failure to comply with these requirements under the aforementioned regulations could subject us to penalties, including fines, suspension of business, revocation of required licenses and civil or even criminal liabilities. The impact of many of the data-related legislations remains unpredictable as they are relatively new and certain concepts thereunder are subject to interpretation by the regulators. If any data that we possess belongs to data categories that are subject to heightened scrutiny, we may be required to adopt stricter measures for protection and management of such data. The Cybersecurity Review Measures remain unclear on whether the requirements will be applicable to us or other companies already listed in the United States. If the Cybersecurity Review Measures mandate clearance of cybersecurity review and other specific actions to be taken by issuers like us, we face uncertainties as to whether these additional procedures can be completed by us timely, or at all, which may subject us to government enforcement actions and investigations, fines, penalties, suspension of our non-compliant operations, or removal of our app from the application stores, and materially and adversely affect our businesses and results of operations. As of the date of this annual report, we have not been involved in any formal investigations on cybersecurity review made by the Cyberspace Administration of China on such basis. In general, compliance with the existing PRC laws and regulations, as well as additional laws and regulations that PRC regulatory bodies may enact in the future, related to data security and personal information protection, may be costly and result in additional expenses to us, and subject us to negative publicity, which could harm our reputation and business operations. There are also uncertainties with respect to how such laws and regulations will be implemented and interpreted in practice. For example, in November 2025, the Cyberspace Administration of China and Ministry of Public Safety jointly issued the draft Provisions on Personal Information Protection of Large Online Platforms for public comments. These draft provisions propose to identify the platforms with 50 millions registered users or 10 million monthly active users, taking into account other relevant factors, as “large network platforms”, and propose to require such large network platform service providers to, among others, appoint a personal information protections officer who shall be a management member with Chinese nationality. In addition, regulatory authorities around the world have adopted or are considering a number of legislative and regulatory proposals concerning data protection. These legislative and regulatory proposals, if adopted, and the uncertain interpretations and applications thereof could, in addition to the possibility of fines, result in an order requiring that we change our data practices and policies, which could have an adverse effect on our businesses and results of operations. The European Union General Data Protection Regulation, which came into effect on May 25, 2018, includes operational requirements for companies that receive or process personal data of residents of the European Economic Area. The European Union General Data Protection Regulation establishes new requirements applicable to the processing of personal data, affords new data protection rights to individuals and imposes penalties for serious data breaches. Individuals also have a right to compensation under the European Union General Data Protection Regulation for financial or non-financial losses. Although we do not conduct any business in the European Economic Area, in the event that residents of the European Economic Area access our website or our mobile platform and input protected information, we may become subject to provisions of the European Union General Data Protection Regulation. In addition, to the extent we have accessed data in Hong Kong and Macau, we have been in compliance with relevant laws and regulations in Hong Kong and Macau regarding data security, such as the Personal Data (Privacy) Ordinance and the Unsolicited Electronic Messages Ordinance which impose protocols and obligations regarding the handling of personal data including that, among other things, (i) personal data shall be collected for a lawful purpose, necessary and not excessive, (ii) personal data shall be collected by means that are lawful and fair in the circumstances of the case, and (iii) the person from whom personal data is collected is informed of the purpose of collecting the data. We believe that the laws and regulations in Hong Kong and Macau regarding data security do not have a material impact on our business, as of the date of this annual report. However, if certain laws and regulations in Hong Kong or Macau were to result in oversight over data security that impacts our business in these regions, we may be required to incur additional cost to ensure our compliance to such laws and regulations, and any violation could result in a material adverse impact on our business, reputation and results of operations. 43 Table of Contents Our use of open source software could adversely affect our ability to offer our products and services and subject us to possible litigation. We use open source software in connection with our development of technology infrastructure. From time to time, companies that use open source software have faced claims challenging the use of open source software and/or compliance with open source license terms. We could be subject to suits by parties claiming ownership of what we believe to be open source software, or claiming noncompliance with open source licensing terms. Some open source licenses require users who distribute software containing open source to make available all or part of such software, which in some circumstances could include valuable proprietary code. While we monitor the use of open source software and try to ensure that none is used in a manner that would require us to disclose our proprietary source code or that would otherwise breach the terms of an open source agreement, such use could inadvertently occur, in part because open source license terms are often ambiguous. Any requirement to disclose our proprietary source code or pay damages for breach of contract could be harmful to our business, results of operations or financial condition, and could help our competitors develop travel products and services that are similar to or better than ours. If we fail to implement and maintain an effective system of internal controls, we may be unable to accurately report our results of operations or prevent fraud or fail to meet our reporting obligations, and investor confidence and the market price of our ADSs may be materially and adversely affected. We are subject to the Sarbanes-Oxley Act of 2002, or SOX. Section 404 of the SOX requires that we include a report from management on the effectiveness of our internal control over financial reporting in our annual report on Form 20-F. Our management has concluded that our internal control over financial reporting was effective as of December 31, 2025. See “Item 15. Controls and Procedures.” However, if we fail to maintain the effectiveness of our internal control over financial reporting, we may not be able to conclude on an ongoing basis that we have effective internal control over financial reporting in accordance with the SOX. Moreover, effective internal control over financial reporting is necessary for us to produce reliable financial reports. As a result, any failure to maintain effective internal control over financial reporting could result in the loss of investor confidence in the reliability of our financial statements, which in turn could negatively impact the trading price of our ADSs. Furthermore, we may need to incur additional costs and use additional management and other resources in an effort to comply with Section 404 of the SOX and other requirements going forward. We have limited business insurance coverage in China. Insurance companies in China offer limited business insurance products. Business disruption insurance is available to a limited extent in China, but we have determined that the risks of disruption, the cost of such insurance and the difficulties associated with acquiring such insurance make it commercially impractical for us to have such insurance. We maintain insurance coverage for travel company liabilities, but we do not maintain insurance coverage for business disruptions and would have to bear the costs and expenses associated with any such events out of our own resources. We may need additional capital, and financing may not be available on terms acceptable to us, or at all. Based on our liquidity assessment, which has considered our operations at the current business scale, the available funding that will be provided from the maturity of our short-term and long-term investments, and our available cash and cash equivalents, we will be able to meet our working capital requirements and capital expenditures in the ordinary course of business for the next twelve months subsequent to the filing of this annual report. We may require additional cash resources due to unanticipated business conditions or other future developments, including any marketing initiatives or investments we may decide to pursue. If these resources are insufficient to satisfy our cash requirements, we may seek to obtain a credit facility or sell additional equity or debt securities. The sale of additional equity securities could result in the dilution of our existing shareholders. The incurrence of indebtedness would result in increased debt service obligations and could result in operating and financing covenants that would restrict our operations. It is uncertain whether financing will be available in amounts or on terms acceptable to us, if at all. 44 Table of Contents We have granted share options and restricted shares, and may grant share options and other share-based awards in the future, which may materially increase our net loss. We adopted the 2008 Plan, which permits the granting of options to purchase our ordinary shares and restricted shares. We also adopted the 2014 Plan, which permits the granting of options to purchase our ordinary shares, restricted shares and restricted share units. In particular, our 2014 Plan contains an evergreen provision which allows us to automatically increase the maximum aggregate number of ordinary shares reserved under the 2014 Plan to 5% of the then-issued and outstanding shares on an as-converted basis without shareholder approval, if and whenever the shares reserved in the 2014 Plan account for less than 1% of the total then-issued and outstanding shares on an as-converted basis. For more details regarding the 2008 Plan and the 2014 Plan, see “Item 6. Directors, Senior Management and Employees—B. Compensation.” As of February 28, 2026, there were options to acquire 3,199,629 Class A ordinary shares outstanding under the 2008 Plan, and options to acquire 31,615,452 Class A ordinary shares and 11,385 restricted shares outstanding under the 2014 Plan. In addition, we plan to grant employees share options and other share-based compensation in the future. Expenses associated with share-based awards may materially impact our results of operations. Risks Related to Our ADSs and Class A Ordinary Shares If we fail to meet Nasdaq’s minimum bid price requirement, our ADSs could be subject to delisting, which may significantly reduce the liquidity of our ADSs and cause further decline to the market price of our ADSs. Our ADSs were previously listed on the Nasdaq Global Market. On May 19, 2025, we received a letter from Nasdaq indicating that we were not in compliance with Nasdaq Listing Rule 5450 (a) (1), as the closing bid price of the ADSs had been below US$1.00 per ADS for the previous 30 consecutive business days. We were given a period of 180 calendar days, or until November 17, 2025, to regain compliance with the minimum bid price requirement. In response, we submitted an application to transfer the listing of our ADSs from the Nasdaq Global Market to the Nasdaq Capital Market, which was approved by Nasdaq on November 21, 2025. In connection with the transfer to the Nasdaq Capital Market, Nasdaq granted us a second period of 180 calendar days, or until May 18, 2026, to regain compliance with the minimum bid price requirement for continued listing. To regain compliance, the closing bid price of our ADSs must meet or exceed US$1.00 per ADS for a minimum of 10 consecutive business days on or prior to May 18, 2026. Nasdaq’s determination to grant the additional 180-day compliance period was in part based on we meeting the continued listing requirements of the Nasdaq Capital Market with the exception of the bid price requirement, and we having provided written notice of our intention to cure the deficiency during the additional compliance period, including effecting a reverse stock split or a change of the ratio of our ADSs to its Class A ordinary shares, if necessary. On March 20, 2026, we announced to change the ratio of the ADSs to our Class A ordinary shares (the “ADS Ratio Change”), from the current ratio of one (1) ADS representing three (3) Class A ordinary shares to a new ratio of one (1) ADS representing thirty (30) Class A ordinary shares. The ADS Ratio Change will have the same effect as a one-for-ten reverse ADS split and the ADS Ratio Change will be effective on or about April 22, 2026, U.S. Eastern Time, subject to the effectiveness of the post-effective amendment to the ADS Registration Statement on Form F-6 on or before that date. However, there can be no assurance that we remain in compliance with the minimum bid price requirement and meet other requirements for continued listing at all times going forward. If Nasdaq determines to delist our ADSs, or if we fail to list our ADSs on other stock exchanges or find alternative trading venue for our ADSs, the market liquidity and the value of an investment in our ADSs will be materially and adversely affected. 45 Table of Contents The trading price of our ADSs have fluctuated and may continue to be volatile regardless of our operating performance. Since our ADSs became listed on the Nasdaq Global Market on May 9, 2014, the trading price of our ADSs has fluctuated significantly. The trading price of our ADSs is likely to be volatile and could fluctuate widely due to factors beyond our control. This may happen because of broad market and industry factors, like the performance and fluctuation of the market prices of other companies with business operations located mainly in China that have listed their securities in the United States. The widespread negative publicity of alleged fraudulent accounting practices and poor corporate governance of certain U.S. public companies with operations in China in recent years was believed to have negatively affected investors’ perception and sentiment towards companies with a connection to China, which significantly and negatively affected the trading prices of some companies’ securities listed in the U.S. Any similar negative publicity or sentiment may affect the performance of our ADSs. The trading price of our ADSs may also be affected by changes in the U.S. stock markets in general. Furthermore, securities markets may from time to time experience significant price and volume fluctuations that are not related to our operating performance, which may have a material adverse effect on the market price of our ADSs. The securities of some PRC companies that have listed their securities on U.S. stock markets have experienced significant volatility. The trading performances of these PRC companies’ securities after their initial public offerings may affect the attitudes of investors toward PRC companies listed in the United States in general and consequently may impact the trading performance of our ADSs, regardless of our actual operating performance. In addition to market and industry factors, the price and trading volume for our ADSs may be highly volatile due to factors specific to our own operations, including the following: ● the financial projections that we may choose to provide to the public, any changes in those projections or our failure for any reason to meet those projections; ● variations in our revenues, net income and cash flow; ● announcements of new investments, acquisitions, strategic partnerships, or joint ventures; ● announcements of new products, services and expansions by us or our competitors; ● changes in financial estimates by securities analysts; ● additions or departures of key personnel; ● release of lock-up or other transfer restrictions on our outstanding equity securities or sales of additional equity securities; ● potential litigation or regulatory investigations; and ● fluctuations in market prices for our products or services. Any of these factors may result in large and sudden changes in the volume and price at which our ADSs trade. If securities or industry analysts do not publish research or reports about our business, or if they adversely change their recommendations regarding our ADSs, the market price for our ADSs and trading volume could decline. The trading market for our ADSs will be influenced by research or reports that securities or industry analysts publish about our business. If one or more analysts who cover us downgrade our ADSs, or publish unfavorable research about us, the market price for our ADSs would likely decline. Failure to meet expectations driven by analyst research or reports, even by aggressive research or reports, may cause the market price of our ADSs to decline. If one or more of these analysts cease to cover us or fail to regularly publish reports on us, we could lose visibility in the financial markets, which, in turn, could cause the market price or trading volume for our ADSs to decline. 46 Table of Contents Our dual class share structure with different voting rights will limit your ability to influence corporate matters and could discourage others from pursuing any change of control transactions that holders of our Class A ordinary shares and ADSs may view as beneficial. Our ordinary shares are divided into Class A ordinary shares and Class B ordinary shares. Holders of Class A ordinary shares are entitled to one vote per share, while holders of Class B ordinary shares are entitled to ten votes per share, with Class A and Class B ordinary shares voting together as one class on all matters subject to a shareholders’ vote. Due to the disparate voting powers attached to these two classes of ordinary shares, holders of our Class B ordinary shares collectively beneficially owned approximately 5.33% of our outstanding ordinary shares as of February 28, 2026, representing 36.02% of our total voting power. As of February 28, 2026, our directors and officers beneficially own an aggregate of 61.8% of our outstanding shares representing 61.2% of our total voting power. As a result of the dual class share structure and the concentration of ownership, holders of our Class B ordinary shares have substantial influence over our business, including decisions regarding mergers, consolidations and the sale of all or substantially all of our assets, election of directors and other significant corporate actions. They may take actions that are not in the best interest of us or our other shareholders. This concentration of ownership may discourage, delay or prevent a change in control of our company, which could deprive our shareholders of an opportunity to receive a premium for their shares as part of a sale of our company and may reduce the price of our ADSs. This concentrated control will limit your ability to influence corporate matters and could discourage others from pursuing any potential merger, takeover or other change of control transactions that holders of Class A ordinary shares and/or ADSs may view as beneficial. For more information regarding our principal shareholders and their affiliated entities, see “Item 7. Major Shareholders and Related Party Transactions—A. Major Shareholders.” The sale or availability for sale of substantial amounts of our Class A ordinary shares and/or ADSs could adversely affect their market price. Sales of substantial amounts of our Class A ordinary shares and/or ADSs in the public market, or the perception that these sales could occur, could adversely affect the market price of our Class A ordinary shares and/or ADSs and could materially impair our ability to raise capital through equity offerings in the future. As of February 28, 2026, we had 325,912,697 ordinary shares outstanding, comprising (i) 308,539,197 Class A ordinary shares (excluding 19,413,645 Class A ordinary shares, represented by 6,471,215 ADSs, reserved for the future exercise of options or the vesting of other awards under the 2008 Plan and the 2014 Plan), and (ii) 17,373,500 Class B ordinary shares. Among these shares, 127,023,885 Class A ordinary shares are in the form of ADSs, which are freely transferable by persons other than our affiliates without restriction or additional registration under the Securities Act. The remaining Class A ordinary shares outstanding will be available for sale, subject to volume and other restrictions as applicable under Rules 144 and 701 under the Securities Act. We cannot predict what effect, if any, market sales of securities held by our significant shareholders or any other shareholder or the availability of these securities for future sale will have on the market price of our Class A ordinary shares and/or ADSs. In addition, certain holders of our Class B ordinary shares are entitled to certain registration rights in the event that specified conditions are met, including demand registration rights, piggyback registration rights, and Form F-3 registration rights. Registration of these shares under the Securities Act would result in these shares becoming freely tradable without restriction under the Securities Act immediately upon the effectiveness of the registration. Sales of these registered shares in the public market, or the perception that such sales could occur, could cause the price of our Class A ordinary shares and/or ADSs to decline. We believe that we were a passive foreign investment company for United States federal income tax purposes for the taxable year ended December 31, 2025, which could result in adverse United States federal income tax consequences to U.S. Holders of the ADSs or ordinary shares. We will be classified as a passive foreign investment company, or PFIC, for United States federal income tax purposes for any taxable year, if either (a) 75% or more of our gross income for such year consists of certain types of “passive” income, or the income test, or (b) 50% or more of the value of our assets (generally determined on the basis of a quarterly average) during such year is attributable to assets that produce or are held for the production of passive income, or the asset test. Although the law in this regard is unclear, we treat the consolidated affiliated entities as being owned by us for United States federal income tax purposes, not only because we direct the activities of their operations, but also because we are entitled to substantially all of their economic benefits, and, as a result, we consolidate their operating results in our consolidated financial statements. 47 Table of Contents Based on the market price of our ADSs and the nature and composition of our assets (in particular the substantial amount of cash and investments), we believe that we were a PFIC for United States federal income tax purposes for the taxable year ended December 31, 2025, and we will likely be a PFIC for our current taxable year ending December 31, 2026 unless the market price of our ADSs significantly increases and/or we invest a substantial amount of the cash and other passive assets we hold in assets that produce or are held for the production of active income. If we are classified as a PFIC in any taxable year during which a U.S. Holder (as defined in “Item 10.E. Additional Information—Taxation—United States Federal Income Tax Considerations”) held our ADSs or ordinary shares, such U.S. Holder may incur significantly increased United States federal income tax on gain recognized on the sale or other disposition of the ADSs or ordinary shares and on the receipt of distributions on the ADSs or ordinary shares to the extent such gain or distribution is treated as an “excess distribution” under the United States federal income tax rules, and such U.S. Holders may be subject to burdensome reporting requirements. Further, if we were classified as a PFIC for any year during which a U.S. Holder holds our ADSs or ordinary shares, we generally would continue to be treated as a PFIC for all succeeding years during which such U.S. Holder held our ADSs or ordinary shares. We do not intend to provide information necessary for U.S. Holders to make qualified electing fund elections which, if available, would result in tax treatment different from (and generally less adverse than) the general tax treatment for PFICs. The United States federal income tax rules that apply if we are classified as a PFIC for the current taxable year or any subsequent taxable year are discussed below under “Item 10. Additional Information—E. Taxation—United States Federal Income Tax Considerations—Passive Foreign Investment Company Rules.” You may face difficulties in protecting your interests, and your ability to protect your rights through U.S. courts may be limited, because we are incorporated under Cayman Islands law. We are an exempted company incorporated under the laws of the Cayman Islands. Our corporate affairs are governed by our memorandum and articles of association, the Companies Act of the Cayman Islands (Revised) and the common law of the Cayman Islands. The rights of shareholders to take actions against the directors, actions by minority shareholders and the fiduciary responsibilities of our directors to us under Cayman Islands law are to a large extent governed by the common law of the Cayman Islands. The common law of the Cayman Islands is derived in part from comparatively limited judicial precedents in the Cayman Islands as well as from the common law of England, the decisions of whose courts are of persuasive authority, but are not binding, on a court in the Cayman Islands. The rights of our shareholders and the fiduciary responsibilities of our directors under Cayman Islands law are not as clearly established as they would be under statutes or judicial precedents in some jurisdictions in the United States. In particular, the Cayman Islands have a less developed body of securities laws than the United States. Some U.S. states, such as Delaware, have more fully developed and judicially interpreted bodies of corporate law than the Cayman Islands. In addition, with respect to Cayman Islands companies, plaintiffs may face special obstacles, including but not limited to those relating to jurisdiction and standing, in attempting to assert derivative claims in state or federal courts of the United States. The Cayman Islands courts are also unlikely: ● to recognize or enforce against us judgments of courts of the United States based on certain civil liability provisions of U.S. securities laws; and ● to impose liabilities against us, in original actions brought in the Cayman Islands, based on certain civil liability provisions of U.S. securities laws that are penal in nature. There is no statutory recognition in the Cayman Islands of judgments obtained in the United States, although the courts of the Cayman Islands will in certain circumstances recognize and enforce a non-penal judgment of a foreign court of competent jurisdiction without retrial on the merits. As a result of all of the above, public shareholders may have more difficulty in protecting their interests in the face of actions taken by management, members of the board of directors or controlling shareholders than they would as public shareholders of a company incorporated in the United States. For a discussion of significant differences between the provisions of the Companies Act of the Cayman Islands (Revised) and the laws applicable to companies incorporated in the United States and their shareholders, see “Item 10. Additional Information—B. Memorandum and Articles of Association—Differences in Corporate Law.” 48 Table of Contents Judgments obtained against us by our shareholders may not be enforceable. We are a Cayman Islands company and all of our assets are located outside of the United States. Our current operations are based in China. In addition, the majority of our current directors and executive officers are nationals and residents of countries other than the United States. Substantially all of the assets of these persons are located outside the United States. As a result, it may be difficult or impossible for you to bring an action against us or against these individuals in the United States in the event that you believe that your rights have been infringed under the United States federal securities laws or otherwise. Even if you are successful in bringing an action of this kind, the laws of the Cayman Islands and of China may render you unable to enforce a judgment against our assets or the assets of our directors and officers. On July 14, 2006, the Supreme People’s Court of China and the Government of the Hong Kong Special Administrative Region signed an Arrangement on Reciprocal Recognition and Enforcement of Judgments in Civil and Commercial Matters Pursuant to Choice of Court Agreements between the Parties Concerned, or the 2006 Arrangement. Under the 2006 Arrangement, where any designated mainland China court or any designated Hong Kong court has made an enforceable final judgment requiring payment of money in a civil or commercial case pursuant to a “choice of court” agreement in writing, any party concerned may apply to the relevant mainland China court or Hong Kong court for recognition and enforcement of the judgment. On January 18, 2019, the Supreme Court of China and the Department of Justice under the Government of the Hong Kong Special Administrative Region signed the Arrangement on Reciprocal Recognition and Enforcement of Judgments in Civil and Commercial Matters by the Courts of the Mainland and of the Hong Kong Special Administrative Region, or the 2019 Arrangement. The 2019 Arrangement establishes a mechanism for judgment recognition and enforcement with greater clarity and certainty in a wider range of civil and commercial matters between mainland China and the Hong Kong Special Administrative Region. Under the 2019 Arrangement, a “choice of court” agreement in writing is no longer required for bilateral judgment recognition and enforcement. The 2019 Arrangement came into effect on January 29, 2024. According to the 2019 Arrangement, any party concerned may apply to the relevant mainland China court or Hong Kong court for recognition and enforcement of the effective judgments in civil and commercial cases subject to the conditions set forth in the 2019 Arrangement. As the 2019 Arrangement took effect recently, there are still uncertainties about the outcome and effectiveness of enforcement or recognition of judgments under the 2019 Arrangement. The voting rights of holders of ADSs are limited by the terms of the deposit agreement, and you may not be able to exercise your right to vote your Class A ordinary shares. Holders of our ADSs are only able to exercise the voting rights with respect to the underlying Class A ordinary shares in accordance with the provisions of the deposit agreement. Under the deposit agreement, holders of our ADSs must vote by giving voting instructions to the depositary. Upon receipt of those voting instructions, the depositary will vote the underlying Class A ordinary shares in accordance with those instructions. Holders of our ADSs are not able to directly exercise their right to vote with respect to the underlying shares unless they withdraw the shares. Under our amended and restated memorandum and articles of association, the minimum notice period required for convening a general meeting is 14 calendar days. When a general meeting is convened, holders of our ADSs may not receive sufficient advance notice to withdraw the shares underlying their ADSs to allow them to vote with respect to any specific matter. If we ask for instructions from the holders of our ADSs, the depositary will notify the holders of our ADSs of the upcoming vote and will arrange to deliver our voting materials to them. We cannot assure holders of our ADSs that they will receive the voting materials in time to ensure that they can instruct the depositary to vote their shares. In addition, the depositary and its agents are not responsible for failing to carry out voting instructions or for their manner of carrying out voting instructions. This means that holders of our ADSs may not be able to exercise their right to vote and may have no legal remedy if the shares underlying their ADSs are not voted as requested. We are a foreign private issuer within the meaning of the rules under the Exchange Act, and as such we are exempt from certain provisions applicable to United States domestic public companies. Because we qualify as a foreign private issuer under the Exchange Act, we are exempt from certain provisions of the securities rules and regulations in the United States that are applicable to U.S. domestic issuers, including: ● the rules under the Exchange Act requiring the filing with the SEC of quarterly reports on Form 10-Q or current reports on Form 8-K; ● the sections of the Exchange Act regulating the solicitation of proxies, consents, or authorizations in respect of a security registered under the Exchange Act; 49 Table of Contents ● the sections of the Exchange Act requiring principal shareholders to file public reports of their share ownership and trading activities and liability for insiders who profit from trades made in a short period of time; and ● the selective disclosure rules by issuers of material nonpublic information under Regulation FD. We are required to file an annual report on Form 20-F within four months of the end of each fiscal year. In addition, we publish our results on a quarterly basis as press releases, distributed pursuant to the rules and regulations of the Nasdaq Global Market. Press releases relating to financial results and material events are also furnished to the SEC on Form 6-K. However, the information we are required to file with or furnish to the SEC is less extensive and less timely as compared to that required to be filed with the SEC by U.S. domestic issuers. As a Cayman Islands company listed on the Nasdaq Global Market, we are subject to the Nasdaq Global Market corporate governance listing standards. However, Nasdaq Global Market rules permit a foreign private issuer like us to follow the corporate governance practices of its home country. Certain corporate governance practices in the Cayman Islands, our home country, may differ significantly from the Nasdaq Global Market corporate governance listing standards. As we have chosen, and may from time to time choose, to follow home country practice exemptions with respect to certain corporate matters, such as the requirement of shareholders’ approval for issuing additional securities exceeding 20% of our outstanding ordinary shares and the requirement to hold an annual meeting of shareholders, our shareholders may be afforded less protection under Cayman Islands law than they would under the Nasdaq corporate government requirements applicable to U.S. domestic issuers. See “Item 16G. Corporate Governance.” As a result, you may not be afforded the same protections or information, which would be made available to you, were you investing in a U.S. domestic issuer. Although we have adopted a shareholder return policy since March 2026, we cannot assure you that our existing shareholder return policy or the amount of dividends that you may receive will not change in the future, neither can we guarantee that we will have sufficient profits, reserves set aside from profits or otherwise funds to justify and enable dividend declaration and payment in compliance with laws for any fiscal quarter and, therefore, you may need to rely on price appreciation of our class A ordinary shares and/or the ADSs as the sole source for return on your investment. In March 2025, our board of directors declared a cash dividend of US$0.012 per ordinary share to holders of ordinary shares and holders of ADSs of record as of the close of business on March 27, 2025. In March 2026, our board of directors approved a three-year shareholder return plan, under which we may, during the three-year period from the date of approval, (i) declare and distribute cash dividends of no more than US$30 million and (ii) repurchase of our Class A Ordinary Shares and/or ADSs of no more than US$20 million. Under the shareholder return plan, our board of directors reserves the discretion to determine the form, timing, and amount of the capital return measures based on our financial condition, results of operations, capital requirements and other relevant factors. In the same month, pursuant to this shareholder return plan, our board of directors declared a cash dividend of US$0.0399 per ordinary share to holders of ordinary shares and holders of ADSs of record as of the close of business on May 4, 2026. Despite a shareholder return being in place, before any dividend is declared and paid, we need to have enough profits to justify such declaration and payment, or we need to have sufficient reserves set aside from profits previously generated that our board of directors determines are no longer needed. In addition, we must be able to pay our debts as they fall due in the ordinary course of business immediately following the dividend payment. We cannot assure you that we will be able to meet all of such conditions to enable dividend declaration and payment in compliance with laws. Even if our board of directors decides to declare and pay dividends, the timing and amount of future dividends, if any, will depend on, among other things, our future results of operations and cash flows, our capital requirements and surplus, the amount of distributions, if any, received by us from our subsidiaries, our financial condition, contractual restrictions and other factors deemed relevant by our board of directors. Therefore, the amount of dividends that you may receive is uncertain and subject to change. Furthermore, our shareholder return policy is subject to change at any time at the discretion of our board of directors, and there can be no assurance that we will not adjust or terminate our policy in the future. Accordingly, you should not rely on your investment in our class A ordinary shares and/or the ADSs as a source for any future dividend income and the future return on your investment in our class A ordinary shares and/or the ADSs will likely depend entirely upon any future price appreciation of our class A ordinary shares and/or the ADSs. There is no guarantee that our class A ordinary shares and/or the ADSs will appreciate in value or even maintain the price at which you purchased the class A ordinary shares and/or the ADSs. You may not realize a return on your investment in our class A ordinary shares and/or ADSs and you may even lose your entire investment in our class A ordinary shares and/or the ADSs. 50 Table of Contents Holders of our ADSs may not receive dividends or other distributions on our Class A ordinary shares and may not receive any value for them, if it is illegal or impractical to make them available. The depositary of our ADSs has agreed to pay to holders of our ADSs the cash dividends or other distributions it or the custodian receives on Class A ordinary shares or other deposited securities underlying our ADSs, after deducting its fees and expenses. Holders of our ADSs will receive these distributions in proportion to the number of Class A ordinary shares their ADSs represent. However, the depositary is not responsible if it decides that it is unlawful or impractical to make a distribution available to any holders of ADSs. For example, it would be unlawful to make a distribution to a holder of ADSs if it consists of securities that require registration under the Securities Act, but that are not properly registered or distributed under an applicable exemption from registration. The depositary may also determine that it is not feasible to distribute certain property through the mail. Additionally, the value of certain distributions may be less than the cost of mailing them. In these cases, the depositary may determine not to distribute such property. We have no obligation to register under U.S. securities laws any ADSs, ordinary shares, rights or other securities received through such distributions. We also have no obligation to take any other action to permit the distribution of ADSs, ordinary shares, rights or anything else to holders of ADSs. This means that holders of our ADSs may not receive distributions we make on our Class A ordinary shares or any value for them if it is illegal or impractical for us to make them available. These restrictions may cause a material decline in the value of our ADSs. Holders of our ADSs may not be able to participate in rights offerings and may experience dilution of your holdings. We may, from time to time, distribute rights to our shareholders, including rights to acquire securities. Under the deposit agreement, the depositary will not distribute rights to holders of ADSs unless the distribution and sale of rights and the securities to which these rights relate are either exempt from registration under the Securities Act with respect to all holders of ADSs, or are registered under the provisions of the Securities Act. The depositary may, but is not required to, attempt to sell these undistributed rights to third parties, and may allow the rights to lapse. We may be unable to establish an exemption from registration under the Securities Act, and we are under no obligation to file a registration statement with respect to these rights or underlying securities or to endeavor to have a registration statement declared effective. Accordingly, holders of ADSs may be unable to participate in our rights offerings and may experience dilution of their holdings as a result. Holders of our ADSs may be subject to limitations on transfer of our ADSs. Our ADSs are transferable on the books of the depositary. However, the depositary may close its books at any time or from time to time when it deems expedient in connection with the performance of its duties. The depositary may close its books from time to time for a number of reasons, including in connection with corporate events such as a rights offering, during which time the depositary needs to maintain an exact number of ADS holders on its books for a specified period. The depositary may also close its books in emergencies, and on weekends and public holidays. The depositary may refuse to deliver, transfer or register transfers of our ADSs generally when our share register or the books of the depositary are closed, or at any time if we or the depositary deems it is advisable to do so because of any requirement of law or of any government or governmental body, or under any provision of the deposit agreement, or for any other reason.

A. History and Development of the Company We began our operation in China through Nanjing Tuniu, a PRC company formed in December 2006. Nanjing Tuniu acquired 100% of the equity interests in Shanghai Tuniu International Travel Service Co., Ltd. in August 2008, Nanjing Tuniu International Travel Service Co., Ltd. in December 2008 and Beijing Tuniu International Travel Service Co., Ltd. in November 2009. Nanjing Tuniu established Nanjing Tuzhilv Tickets Sales Co., Ltd. in April 2011. In June 2008, we incorporated Tuniu Corporation under the laws of the Cayman Islands as our offshore holding company in order to facilitate international financing. In May 2011, we established our wholly owned Hong Kong subsidiary, Tuniu (HK) Limited. We completed our initial public offering and listed our ADSs on the Nasdaq Global Market under the symbol “TOUR” in May 2014. At the time of our initial public offering, we also entered into a concurrent private placement with three investors. 51 Table of Contents In December 2014, we entered into a share subscription agreement with Unicorn Riches Limited, a special purpose vehicle of Hony Capital, JD.com E-commerce (Investment) Hong Kong Corporation Limited, a special purpose vehicle of JD.com, Inc. (Nasdaq: JD), Ctrip Investment Holding Ltd., a subsidiary of Ctrip.com International, Ltd. (which later changed its name to Trip.com Group Limited) (Nasdaq: TCOM) and the respective personal holding companies of Tuniu’s chief executive officer and chief operating officer, pursuant to which we sold a total of 36,812,868 newly issued Class A ordinary shares for US$148 million. In May 2015, we entered into a share subscription agreement with each of Fabulous Jade Global Limited, a subsidiary of JD.com, Inc., Unicorn Riches Limited, a special purpose vehicle of Hony Capital, DCM Ventures China Turbo Fund, L.P. and DCM Ventures China Turbo Affiliates Fund, L.P., both affiliates of DCM V, L.P., Ctrip Investment Holding Ltd., a subsidiary of Ctrip.com International, Ltd. (which later changed its name to Trip.com Group Limited), Esta Investments Pte Ltd, an affiliate of Temasek Holdings and Sequoia Capital 2010 CV Holdco, Ltd, an affiliate of Sequoia Capital, pursuant to which we issued a total of 93,750,000 Class A ordinary shares for US$500 million. In November 2015, we entered into a share subscription agreement with HNA Tourism Group, or HNA Tourism, pursuant to which an affiliate of HNA Tourism purchased 90,909,091 newly issued Class A ordinary shares from us for US$500 million in January 2016. From 2016 to 2019, we acquired controlling interests in several offline travel agencies and an online travel agency to further expand our overseas tourism market and promote our destination service. In 2022 and 2024, we disposed the controlling interests in these subsidiaries and retained non-controlling interests in the same subsidiaries after the disposals. As a result of these disposals, we recognized a disposal gain of RMB65.0 million and RMB24.1 million in 2022 and 2024, respectively. As of December 31, 2025, we received proceeds of RMB1.0 million (US$0.1 million) with a discounted unpaid amount of RMB9.3 million (US$1.3 million), which we expect to receive by 2029. In November 2020, JD.com E-commerce (Investment) Hong Kong Corporation Limited transferred 12,436,780 Class A ordinary shares of our company to Hopeful Tourism Limited, a subsidiary of Caissa Sega Tourism Culture Development Group Co., Ltd., or Caissa Group, and JD.com Investment Limited transferred all its shares in Fabulous Jade Global Limited, which held 65,625,000 Class A ordinary shares of our company, to Hopeful Tourism Limited, pursuant to a share purchase agreement. As a result of the share transfer, Caissa Group beneficially owned 78,061,780 Class A ordinary shares. In December 2023, JD.com E-commerce (Investment) Hong Kong Corporation Limited, JD.com Investment Limited, Hopeful Tourism Limited, Caissa Group and Fabulous Jade Global Limited entered into a termination agreement, pursuant to which the parties agreed to terminate the share purchase agreement and agreed for the 78,061,780 Class A ordinary shares then beneficially owned by Hopeful Tourism Limited to be returned and transferred to JD.com Investment Limited. Tuniu Corporation established a wholly owned PRC subsidiary, Beijing Tuniu, in September 2008. Tuniu (HK) Limited established another wholly owned PRC subsidiary, Tuniu (Nanjing) Information Technology Co., Ltd., in August 2011, and acquired 100% of the equity interests in Beijing Tuniu in September 2011. Through Beijing Tuniu, we direct the business operations of Nanjing Tuniu by entering into a series of contractual arrangements, including purchase option agreement, equity interest pledge agreement, shareholders’ voting rights agreement, powers of attorney and cooperation agreement, with Nanjing Tuniu and its shareholders. Nanjing Tuniu holds our ICP licenses as an internet content provider and operates our website. Beijing Tuniu International Travel Service Co., Ltd. and Nanjing Tuniu International Travel Service Co. Ltd., both of which are Nanjing Tuniu’s subsidiaries, hold our operation permits for our overseas travel business. These contractual arrangements allow us to: ● direct the activities of Nanjing Tuniu; ● receive substantially all of the economic benefits of Nanjing Tuniu; and ● have an option to purchase all or part of the equity interests in Nanjing Tuniu when and to the extent permitted by PRC law. As a result of these contractual arrangements, we are the primary beneficiary of Nanjing Tuniu, and we treat it and its subsidiaries as consolidated affiliated entities under U.S. GAAP. We have consolidated the financial results of Nanjing Tuniu and its subsidiaries in our consolidated financial statements in accordance with U.S. GAAP. In November 2025, we transferred the listing of our ADSs from the Nasdaq Global Select Market to Nasdaq Capital Market with trading symbol “Tuniu” unchanged. 52 Table of Contents On March 20, 2026, we announced to change the ratio of the ADSs to our Class A ordinary shares (the “ADS Ratio Change”), from the current ratio of one (1) ADS representing three (3) Class A ordinary shares to a new ratio of one (1) ADS representing thirty (30) Class A ordinary shares. The ADS Ratio Change will have the same effect as a one-for-ten reverse ADS split and the ADS Ratio Change will be effective on or about April 22, 2026, U.S. Eastern Time, subject to the effectiveness of the post-effective amendment to the ADS Registration Statement on Form F-6 on or before that date. Our principal executive offices are located at 6, 8-12th floor, building 6-A, Juhuiyuan, NO. 108 Xuanwudadao, Xuanwu District, Nanjing, Jiangsu Province 210023, the People’s Republic of China. Our telephone number at this address is +86 (25) 8685-3969. Our registered office in the Cayman Islands is located at International Corporation Services Ltd, P.O. Box 472, 2nd Floor, North Wing, Harbour Place, 103 South Church Street, George Town, Grand Cayman KY1-1106, Cayman Islands. Our agent for service of process and authorized representative in the United States in connection with each of the registration statement on Form S-8 (File No. 333-198111 and File No. 333-251283) and registration statement on Form F-6 (File No. 333-195515) is Cogency Global, Inc., located at 122 East 42nd Street, 18th Floor, New York, NY 10168. The SEC maintains an internet website that contains reports, proxy and information statements, and other information regarding us that filed electronically with the SEC, which can be accessed at www.sec.gov. Our annual reports, quarterly results, press release and other SEC filings can also be accessed via our investor relationship website at ir.tuniu.com. See “Item 5. Operating and Financial Review and Prospects—B. Liquidity and Capital Resources” for a discussion of our capital expenditures. B. Business Overview We offer a large selection of packaged tours, including organized tours and self-guided tours, as well as travel-related services for leisure travellers. Our online platform, which comprises our tuniu.com website and mobile platform, provides comprehensive product and travel information through user-friendly interfaces to enable leisure travellers to plan their travels and search for itineraries that best suit their needs. Our online platform contains travel guides featuring photos, information and recommendations for all destinations we cover, as well as user-generated content that serves as valuable references for other travellers. Our recognized brand in leisure travel and growing customer base enable us to source a broad range of products from high-quality travel suppliers at competitive prices. We rigorously select travel suppliers to ensure quality and reliability. We have developed our proprietary supply chain management system—N-Booking system—to streamline our interactions with travel suppliers, allowing them to receive booking information real-time through the web or mobile devices to efficiently manage travel products and understand customer preferences. We maintain a sophisticated supplier management system and data analytics system in order to facilitate the cooperation between the suppliers and us. In addition, to broaden the range of our products further and serve our customers, we enter into strategic agreements with various industry partners from time to time. Our Products and Services We offer packaged tours and other travel-related services to meet the travel needs and preferences of leisure travellers in China. Packaged Tours Packaged tours offered on our platform consist of organized tours and self-guided tours. Organized Tours: Organized tours offer the benefits of pre-arranged itineraries, transportation, accommodation, entertainment, meals and tour guide services. By booking an organized tour on our platform, our customers can achieve cost savings compared to booking each component separately and have a hassle-free travel experience. Organized tours offered on our platform encompass nearly all of the popular tourist destinations within China and overseas among Chinese travellers. Organized tour product portfolios offered on our platform also include local tours, which mainly consist of weekend getaways and themed tours, such as water resort tours, historical town tours, ski tours and hot spring tours, mainly targeting customers who want to spend one to three days away from their departing cities. Typically, the average total amount (including the related taxes, fees and other charges borne by our customers) per trip paid by our customers for local tours that we have delivered and the local tour services that we have rendered is lower as compared to that of other types of organized tours. 53 Table of Contents Particularly, our domestic local tour operators directly provide destination-based services to our organized tour customers, starting from their arrival at the destination all the way until they depart from the destination. Similar to our travel suppliers, our local tour operators coordinate the tours based on pre-arranged itineraries and cover all components of the tours including transportation, accommodation, entertainment, meals and tour guide services. The tour guides serving our customers are either directly employed by us or working for us on a contractual basis. We are able to exercise greater control over the quality of our trips and utilize years of data on travel preferences to design more suitable products for consumers through our local travel operators. In addition, to address the needs of group travellers who cannot be satisfied with off-the-shelf standard packaged travel products, such as companies planning travel retreats and families planning group trips, we provide customized tours to cater to specific travel needs. Our group travel tour advisors work closely with travel suppliers and our customers to design travel products and itineraries that meet such customers’ unique needs. Self-guided Tours: Self-guided tours offered on our platform consist of combinations of flights and hotel bookings and other optional add-ons, such as airport pick-ups that travellers can choose of their own volition. These products are offered at attractive prices compared to booking each travel product separately. The self-guided tours target leisure travellers who prefer greater flexibility during their vacations and do not need tour guide services. Due to the breadth of travel suppliers that are available on our platform, we are able to provide a wide selection of self-guided tours, covering a large number of hotels and airlines, and have developed the most comprehensive product offerings for selected popular destinations. Other Travel-Related Services Our other travel-related services comprise mainly of sales of tourist attraction tickets, visa application services, hotel booking services, air ticketing services, train ticketing services, car rental services and insurance services. We earn a commission or service fee for these services. In addition, we provide advertising services to domestic and foreign tourism boards and bureaus on our online platform. Our Online Platform and Offline Service Network We reach and serve customers through multiple online and offline channels, including our tuniu.com website, mobile platform, a primary call center in Nanjing and our offline retail stores across China. Our online platform provides our customers with the tools and information they need to plan, book and purchase travel products and services. In addition, our online platform presents product information and travel requirements through user-friendly interfaces for leisure travellers to search for, compare and place orders for product offerings that best suit their needs. We have well-trained tour advisors and customer service representatives located at our centralized call center to supplement our online transaction infrastructure by providing our customers with professional advice and guidance throughout their travel planning and bookings process as well as timely support before and during their travels. The inclusion of a customer-focused service network is particularly important to customers of our travel products with high selling prices as these customers usually demand more assistance and attention in their travel planning. Our Website Our website, tuniu.com, provides a one-stop travel platform for our customers to do everything from researching travel destinations to booking travel products. In addition to our product information such as tour duration, departure time and destination descriptions, our website features comprehensive travel advice ranging from basic to professional information, and user recommendations and travellers’ reviews for the destinations we cover. Users can post questions regarding specific products and receive timely responses online from our well-trained tour advisors and customer service representatives, which facilitates their travel planning, product selection, reservations and payments. Our user-friendly interface enables users to quickly and easily evaluate and compare a wide array of travel products. Customers can also raise complaints about our travel products and services through the online-messaging function on our website. We encourage our customers to share photos, stories and other travel-related information on our website. We have built a large and fast-growing collection of customer reviews and travel stories which we believe are attractive and useful to our current and prospective customers. The Travelogue forum on our website, which is organized based on destinations, provides our customers with an easy and intuitive way to access various topics of interest. Registered members can share their travel experiences and interact with other members by posting questions and receiving answers from fellow forum members. We have a comprehensive collection of descriptions and photos of different destinations. Our website also provides other useful travel-related information, such as weather forecasts, exchange rates, train schedules and subway maps to further enhance user experience. 54 Table of Contents A transaction on our website generally involves the following steps: Browse. The customer can easily browse our product selection by travel destination. In order to allow customers to locate the products they are interested in, our website also arranges our travel product offerings into different categories, such as organized tours, self-guided tours, customized tours, cruises, tourist attractions tickets, self-drive tours, accommodation reservation and transportation tickets. The customer can also choose to browse through our best-sellers for each of the following categories: local tours, domestic tours, overseas tours, self-guided tours, themed tours, hotels, destination activities and tourist attractions tickets. Search and Select. A customer conducts a search for a particular product on our website by defining desired parameters, such as destinations, departing cities, departure time, product types, tour duration, number of travellers, prices and itineraries. We provide the customer with information regarding each travel product in detail together with photographs of the destinations and hotels as well as customer reviews and ratings. Our website displays various possible selections and provides additional information about the products. The customer can sort, refine or rank search results by further defining certain search parameters such as price range, customer ratings, popularity and keywords. Our online Q&A feature enables the customer to raise inquiries and receive timely responses to facilitate their research. In addition, the comparison tool on our website displays details of different travel products side-by-side, enabling the customer to evaluate different travel products easily. Order Placement. After a customer has selected a particular option, our website will provide the customer with an opportunity to review details of the travel products and services being purchased and the terms and conditions of such purchases. The customer can also request assistance and professional advice from our tour advisors who will promptly follow up and interact with the customer online or by phone. Contract Confirmation. At this stage, a customer is required to confirm that he or she agrees to the terms and conditions of his or her purchase. The customer can submit his or her confirmation online or sign the contract related to his or her purchase in one of our offline retail stores or send us the signed contract. Contracts are entered between us and the customer directly. Payment. After confirming the terms of a contract, a customer will be directed to the payment webpage. We offer our customers the flexibility to choose a number of payment options, which include bank transfers, credit cards, debit cards and online payment through third-party online payment platforms. In addition, the customer can pay at one of our offline retail stores. If available, the customer can also discount the purchase price of our travel products by using our coupons and travel vouchers. Electronic confirmations are sent to the customer’s e-mail address or mobile phone and the customer can use the itinerary management function on our website or APP to check his or her booking details as well as amend or cancel bookings. Review. After completing his or her trips, a customer is provided with incentives such as coupons to return to our website to write reviews and travel stories and share his or her experience on our Travelogue forum. This increases transparency regarding our travel product quality and increases customer stickiness. We regard customer reviews and travel stories, which provide valuable information to potential customers, as important criteria in assessing the quality and performance of travel suppliers and travel products. We offer customized services via a sophisticated account management system accessible on our online platform. After logging on with a unique identification, a customer can track order status, manage itineraries and check membership points, coupons and travel vouchers. Our Mobile Platform Our Android and Apple iOS-based mobile applications, such as Tuniu Travel, and the mobile version of our website, m.tuniu.com, allow customers to search for travel products and services and place orders on mobile devices. Our mobile platform also enables customers to track their order status and provides other location-based services to allow users to quickly locate a variety of nearby scenic spots. Through Tuniu Travel, our customers can search for travel products and services and complete a booking within minutes. Tuniu Travel also serves as an important and integral part of customers’ research on travel-related information. Customers often use our in-house developed and user-generated travel guides and other user generated content, such as customer reviews, travel stories, tips and recommendations, on our Tuniu Travel to plan their travels. In addition, we offer discounted travel products that are exclusive to users of Tuniu Travel for limited periods to enhance our mobile user engagement and increase monetization. We upgrade our mobile applications on a regular basis and continue to add new functions into it. 55 Table of Contents Our Customer Services When selecting a travel company or platform, leisure travellers often look beyond factors such as price and selection and focus on enjoyable experiences, in which our customer service plays a crucial part. We believe that the quality customer service provided by our well-trained tour advisors and customer service representatives attract our customers towards our online platform. Offline nationwide service network. Our primary call center is located in our headquarter in Nanjing. Our call centers provide 24-hour-a-day, seven-day-a-week customer service before, during and after travels, from answering customers’ initial inquiries on their travel-related needs to assisting them in making and amending their travel bookings. For inquiries on detailed product information and itinerary management, our customer service representatives allocate them via destination to our in-house tour advisors, who follow up with our customers within half an hour to address their concerns and needs. We have implemented comprehensive performance measures to monitor our calls to ensure that our customers receive quality services. Tour Advisors. Tour advisors are trained through in-house training workshops as well as training sessions provided by travel suppliers to closely assist our customers throughout their travel planning and booking process, from pre-sale consultation to final order confirmation. Our tour advisors are equipped with product expertise to guide customers through the details of available packaged tours on our online platform and provide insightful advice on our customers’ desired travel destinations. Our tour advisors provide professional guidance on product selection, price, travel requirements and payment to ensure an efficient and informed shopping experience. To improve the travel experience for our customers, we are committed to sharing part of their losses due to certain unexpected events. For example, if our customers cannot travel due to death, pregnancy, serious injury, hospitalization or rejection of visa applications after entering into contracts with us, we will provide them with travel vouchers equivalent to a portion of the amounts paid which are redeemable towards the purchase of our travel products at a later time. Supply Chain Management Our travel suppliers primarily include tour operators, travel services providers and wholesalers of travel products and services in China. We believe that our ability to enable these travel suppliers to extend their reach to potentially millions of internet users in China and fulfill their needs for inventory management allows us to attract new, quality travel suppliers and build stronger ties with our existing travel suppliers. We have a product procurement team dedicated to developing and enhancing our relationships with existing and prospective travel suppliers. We source a broad range of products from travel suppliers who have significant advantages in the destinations we cover and who offer travel products at competitive prices, which enhances our ability to attract more customers to our online platform. Our growing customer base in turn attracts more travel suppliers, creating a virtuous cycle that strengthens our leading market position. We generally enter into contracts with travel suppliers based on our standard form. Travel suppliers often pay us rebates based on our business volume. In addition, some of the travel suppliers require prepayments for reserving tour availabilities. Typically, we settle payment with travel suppliers on a weekly basis. To date, substantially all of the travel suppliers have sought to pursue continuing cooperation opportunities with us. We conduct a rigorous process in qualifying travel suppliers and in selecting their travel products and services to be offered on our platform. In qualifying a potential travel supplier, we focus on its reputation, product quality, track record, credibility and price competitiveness. In addition, travel suppliers can participate in biddings for priority listings, prominent placements for biddings and advertising displays on our website for the travel products they supply. Product Selection We adopt an open-source procurement strategy to source quality travel products in the destinations we cover. Our product procurement team works closely with travel suppliers to ensure that customers are provided with high-quality travel products. In addition, we conduct regular price comparisons for travel products to assess the competitiveness of the pricing of travel products offered on our platform. 56 Table of Contents Supply Management We hosted a major conference event for our travel suppliers and presented to our travel suppliers our projected travel demand trends each year before the outbreak of COVID-19 in 2020, which has been suspended since 2020. However, we regularly communicate with travel suppliers, mainly through our product procurement team and our proprietary N-Booking system, to keep them informed of any changes to the supply outlook so that they can respond to customer demand in a timely manner. This helps us and the travel suppliers make timely adjustments to procurement plans. Supplier Quality Control We have developed product and service provision protocols for travel suppliers to follow. We have a dedicated team in charge of monitoring travel suppliers based on customer feedback, which also provides recommendations for travel suppliers to improve their service quality and the products they supply. We impose penalties on travel suppliers or cease listing their travel products on our platform if their products fail to meet our quality standards or if we receive valid complaints from our customers. We also prepare regular assessment reports on travel suppliers based on the popularity, quality and price competitiveness of their travel products. To monitor and further improve the quality of travel suppliers and the products and services we offer, we proactively collect feedback from our customers after their travels. B2B distribution We launched our B2B distribution business in September 2015 and rebranded it to Difeng Cloud in October 2018. Based on Tuniu’s direct procurement and integration with the supply chain, Difeng Cloud scaled by offering Tuniu’s products and resources to other distributors within the leisure travel industry. Difeng Cloud offers travel products including packaged tours and other travel-related products such as hotel reservations, attraction tickets and visa applications. N-Booking System Our N-Booking system streamlines the interactions between us and travel suppliers via web and mobile while offering travel suppliers the following features: Product Management. Travel suppliers can submit details of their travel products via an easy-to-navigate online interface. After our review and approval, we will post the details provided by the travel suppliers and the prices determined by us on our online platform. In addition, our N-Booking system provides travel suppliers with an option to use descriptions and photos of destinations and tourist attractions in our database. Just-In-Time Management. Our N-Booking system provides travel suppliers with access to real-time inventory data and gives them a wide range of inventory management tools. Our N-Booking system also notifies travel suppliers of any changes in the inventory level of the travel products we source from them, which enables them to adjust their procurement and sales plans in a timely manner, and allows them to receive booking information real-time through the web or mobile devices to manage travel products more efficiently. As such, we are able to deliver real-time information on product availability, provide our customers with prompt booking and order confirmations, and gain deeper insights into customer preferences. Account Management. Travel suppliers can review transaction history details on our N-Booking system. Data Analysis. Travel suppliers can analyze and understand user behavior based on their browsing history captured by our big data platform. Travel suppliers can keep track of traffic brought to the travel products supplied by them on our online platform and are able to evaluate the competitiveness of different travel products. We believe the user information gathered from our online platform reflects current leisure travel market trends in China and provides market insights to travel suppliers for their procurement planning and product design. Travel suppliers are able to develop an in-depth understanding of customers’ behaviors and preferences with our data mining and analytics capabilities. 57 Table of Contents Technology We have built our technology infrastructure with high levels of performance, reliability, scalability and security to ensure superior customer and supplier experiences. We rely on internally developed proprietary technologies and licensed technologies to manage and improve our website, mobile platform and management systems. We have a team of engineers dedicated to the research and development of website operations, mobile platform, search engine, data analytics and supply chain management system. We believe that an advanced technology platform is vital to our growth and success. We obtained ISO 9001:2015 certification for our quality management system indicating our compliance with internationally recognized standards for quality control in 2023. As long as our management system continues to meet the requirements of such standards, we are expected to remain certified until 2026, subject to further re-certification. Product Search We strive to present relevant and useful search results in a timely fashion to ensure the accuracy, efficiency and synchronism of our search results. We have developed search technologies that allow us to retrieve, index, filter and rank real-time product information. We are able to prioritize search results and display information most suited to our customers’ requirements in a simple and intuitive interface in real-time. Our core search technologies include the following: Real-time Indexing. Our search infrastructure enables changes in product data to be indexed, processed and reflected in search results on a real-time basis. Smart Caching. We maintain a database with massive product information on packaged tours, hotels, flights and other travel-related services. We have designed an auto-prioritizing method to update the database by ranking popular products based on different criteria, such as popular cities, most-visited attractions, top-rated products and most-viewed products. Different refreshing frequencies are applied to different products. Accuracy Checking. Our accuracy-checking software complements our smart caching system and displays the latest product information such as prices and product descriptions. When a user clicks on the interested search result, an accuracy checker is triggered to retrieve the updated product information and present it to the user. Fuzzy Query Processing. We maintain a dictionary for travel-related keywords in Chinese, where keywords are classified and linked to each other based on their meanings. We have also developed a query search algorithm based on user inputs to enhance our ability to dissect natural language queries. Such technologies help us better understand the meanings of queries and produce the most relevant and useful search results. We also provide additional search features such as query spelling correction, query suggestion and search by Chinese phonetics, commonly known as Pinyin. Big Data Analysis We gather and analyze customer behavior and data for our procurement, inventory management and marketing purposes. We also provide selected data to travel suppliers, enabling them to optimize their product designs and marketing strategies. Big Data Platform. We have developed our big data platform based on a distributed computing system. Such data analytics capabilities help us gain a deeper understanding of existing and prospective customers and market trends, make customized recommendations to customers and improve our applications and products accordingly. Streaming Data Analysis. We have also built a streaming data processing pipeline based on our big data platform to view the browsing history of the users of our online platform and to allow travel suppliers to review their performance data near real-time. Web Content Mining. Our web content processing system links user generated content which includes customer reviews, travel stories and tips as well as destination guides such as locations, hotels and tourist attractions. This allows users of our online platform to obtain information of different destinations and travel products and services in a user-friendly manner. 58 Table of Contents Artificial Intelligence (AI) Applications We are exploring the application of AI across various business functions. In April 2025, we launched our proprietary travel AI agent, “AI Assistant Xiao Niu.” The assistant leverages large language models (LLMs) tailored to travel-specific use cases to provide customers with comprehensive services, including intelligent search, automated price comparison, personalized recommendations, and dynamic packaging. We continue to integrate AI and other technological tools into our daily operations. These initiatives have improved operational efficiency and helped control operating costs. We have observed growing adoption of our AI tools among both customers and employees. We have adopted an open-platform strategy by providing external AI agents, such as OpenClaw, with access to the travel booking capabilities available through our app via a Model Context Protocol (MCP) interface, enabling the AI agents to search for and place bookings directly. We intend to continue leveraging AI technologies to support our sustainable, high-quality growth. N-Booking System We have developed a proprietary N-Booking system, accessible via web and mobile, that streamlines the interactions between us and travel suppliers. Our N-Booking system also allows travel suppliers to receive booking information real-time through the web or mobile devices to manage travel products more efficiently and understand customer preferences better. See “—Supply Chain Management—N-Booking System.” Customer Relationship Management System Through a customer relationship management system, we gather, analyze and make use of internally-generated customer behavior and transaction data based on customers’ historical purchase and browsing records. We regularly use this information in budgeting and procurement planning as well as in planning our marketing initiatives and promotional campaigns. Data Security Our system servers are currently housed in Nanjing, and have secure and dedicated communication links among them. All data are backed up on an hourly basis. Our system servers utilize digital certificates to help us conduct secure communications and transactions. The performance of our system servers is monitored and maintained by an internal team that operates 24 hours a day, seven days a week. Customer sensitive information, such as password and payment information, is stored with encryption, and our data servers are secured with firewalls. Dynamic Packaging System Backed by our data analytics capabilities, we have established a dynamic packaging system that enables our users to customize their own travel packages tailored to their individual needs. This system is able to combine trip components from different suppliers to provide truly customized trips, automating and placing in the hands of our customers a function that was previously performed manually. It uses algorithms and past customer data to filter out unnatural choices and provide customers with relevant choices based on their ascertainable behavior. Seasonality Our business experiences fluctuations, reflecting seasonal variations in the demand for leisure travel services. Sales of leisure travel products and services generally will increase during holiday periods and decrease during off-peak times, while prices of leisure travel products and services are subject to fluctuation between peak seasons and low seasons. For example, the third quarter of each year generally contributes the highest percentage of our annual revenues, because many of our customers tend to travel during summer holidays in July and August. Marketing and Brand Building We continue to build and maintain a strong Tuniu brand through both traditional offline marketing media and online marketing channels. We organize targeted campaigns, make promotional and seasonal offers and cooperate with domestic and foreign tourism boards and bureaus in holding promotional events and marketing campaigns. 59 Table of Contents While our offline advertising plays an important role in promoting our brand image, we complement our branding campaigns through mobile and online channels. We promote our mobile app through advertisements in the mobile app store and various display advertisements. In addition, our presence in online social media such as WeChat and Weibo helps us maintain engagement with our targeted customers. As part of our cross-marketing effort, we have agreements with financial institutions to recommend our products and services to their debit or credit card holders, and we allow these cardholders to settle their payments for travel products purchased from us using these cards with discounts. For instance, we cooperated with several major banks in China and launched co-branded credit cards, through which cardholders may book with us and are entitled to discounts, bonus points and certain other privileges. Furthermore, our customer loyalty program allows our customers to accumulate membership points and coupons as they purchase travel products and services. Our membership points have a fixed validity term and, before expiry, customers may redeem these points for future purchases. Our customer loyalty program is designed to encourage repeat purchases. Currently, our membership has seven levels. For customers who meet certain spending thresholds, we upgrade their membership status to the next level, entitling them to further discounts and more points for their spending. For all customers who have joined our loyalty program, we provide them with designated customer service representatives to handle their travel needs. In April 2020, we launched our live streaming shows to promote our own products. This online marketing format is popular for both product sales and content offerings, such as the introduction of products and destinations. We have developed our live streaming shows mainly via third-party platforms. In 2022, we established our own MCN agency. In addition to having our own employees conduct and host live streaming shows, we collaborate with external agencies that run live streaming sessions on their own channels to promote and sell our products. Competition We compete primarily with all other types of online travel companies. In addition, we compete with traditional travel service providers and tour operators. In the self-guided tour business, as we sell packaged tours which include flights and hotels, we also compete with airlines and hotels, which in recent years have made efforts to improve their direct sales. Large, established internet companies have also launched applications offering travel products in various destinations around the world. Factors affecting our competitiveness include, among other things, price, availability and breadth of choice of travel products and services, brand recognition, customer services, ease of use, accessibility, security and reliability of our transaction and service infrastructure. Some of our current and potential competitors may have greater financial, marketing and other resources than we do. In addition, some of our competitors may be acquired by, receive investment from or enter into strategic relationships with larger, well-established and well-financed companies or investors. They may be able to devote greater resources to marketing and promotional campaigns and devote substantially more resources to website and system development than us. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Business and Industry—We face intense competition and may not be able to compete successfully against existing and new competitors.” Intellectual Property Our success and ability to compete depend, in part, upon our ability to establish and adequately protect our intellectual property rights. In this regard, we rely primarily on a combination of copyright, software registration, trademark, trade secret and unfair competition laws and contractual rights, such as confidentiality agreements with our employees and others. As of December 31, 2025, we had 175 registered computer software copyrights, 28 registered patent and 27 registered artwork copyrights in China. In addition, as of December 31, 2025, we had 99 registered domain names that were material to our business, including tuniu.com, and 494 registered trademarks, including 途牛 (the Chinese characters of Tuniu). and , and in China. 60 Table of Contents Insurance We maintain various insurance policies to safeguard against risks and unexpected events. We have purchased travel companies’ liability insurance covering expenses related to accidents caused by us. We have also maintained property insurance policies for our fixed assets covering losses due to fire, explosion, lightning, storm, landslide, subsidence and aircraft damage. PRC Regulation This section sets forth a summary of the significant regulations or requirements that affect our business activities in mainland China or our shareholders’ rights to receive dividends and other distributions from us. Regulations on Value-Added Telecommunication Services The PRC government extensively regulates the telecommunications industry, including the internet sector. The State Council, the Ministry of Industry and Information Technology, the Ministry of Commerce, the SAMR, the National Administration of Radio and Television, the National Press and Publication Administration and other government authorities have promulgated an extensive regulatory scheme governing telecommunications, internet-related services and e-commerce. The Telecommunications Regulations issued by the State Council in September 2000 and amended in February 2016 are the primary regulations governing telecommunication services. Under the Telecommunications Regulations, it is a requirement that telecommunications service providers procure operating licenses prior to commencement of their operations and there are two types of telecommunication operating license for operators in China, namely, licenses for basic telecommunications services and licenses for value-added telecommunications services. Internet content provision services, or ICP services, is a subcategory of value-added telecommunications services. The Administrative Measures on Internet Information Services promulgated by the State Council require commercial internet information services operators to obtain an ICP license from the government authorities before engaging in any commercial internet information services operations within the PRC. Nanjing Tuniu, our consolidated affiliated entity, obtained ICP licenses issued by the Jiangsu Administration of Telecommunication which will expire in July 2027. In addition to the Telecommunications Regulations and the other regulations as mentioned above, the provision of commercial internet information services on mobile internet applications is regulated by the revised Regulations for the Administration of Mobile Application Information Services, which came into effect on August 1, 2022. Pursuant to these regulations, mobile app providers shall comply with provisions on the scope of necessary personal information when engaging in personal information processing activities and shall not compel users to agree to non-essential personal information collection or ban users from their basic functional services due to their refusal of providing unnecessary personal information. In addition, mobile app providers shall, among other things, verify the identities of registered users; establish and improve procedures for protecting user information and information content censorship, fulfill data security protection obligations and various obligations of minors’ protection, and shall not induce users to download the applications by illegal methods or bad information. Furthermore, mobile app providers who launch new technologies, applications or functions with the attribute of public opinion or the ability of social mobilization shall conduct security assessment. If an application provider violates these regulations, application distribution platforms may issue warnings, suspend the release of its applications, or terminate the sale of its applications, and/or report the violations to government authorities, and such application provider may be imposed administrative penalty by the Cyberspace Administration of China and other competent authorities in accordance with the laws and regulations. In recent years, the PRC government has taken steps to strengthen the supervision on the utilization of algorithm in the field of internet information service. On December 31, 2021, the Cyberspace Administration of China, the Ministry of Industry and Information Technology, the Ministry of Public Security and the Ministry of State Security jointly promulgated the Administrative Provisions on Internet Information Service Algorithm Recommendation, which took effect on March 1, 2022, implementing classification and hierarchical management for algorithm recommendation service providers and stipulating that algorithm recommendation service providers shall inform users of their provision of algorithm recommendation services in a conspicuous manner and make the basic principles, purpose intentions and main operating mechanisms of algorithm recommendation services publicly available. Algorithm recommendation service providers selling goods or providing services to consumers shall protect consumers’ rights of fair trade and be prohibited from carrying out illegal conducts such as unreasonably differentiated treatment on transaction conditions based on consumers’ preferences, purchasing habits, and other such characteristics. 61 Table of Contents Foreign Investment in Value-Added Telecommunications Services On March 15, 2019, the National People’s Congress promulgated the PRC Foreign Investment Law, which became effective on January 1, 2020. Pursuant to the PRC Foreign Investment Law, “foreign investments” refer to investment activities conducted by foreign investors directly or “indirectly” in the PRC, including: (i) foreign investors setting up foreign-invested enterprises in the PRC solely or jointly with other investors, (ii) foreign investors obtaining shares, equity interests, property portions or other similar rights and interests of enterprises within the PRC, (iii) foreign investors investing in new projects in the PRC solely or jointly with other investors, and (iv) investment of other methods as specified in laws, administrative regulations, or as stipulated by the State Council. Although VIE structure is not explicitly defined as a method of foreign investment, it remains to be further clarified as to whether VIE structure will be interpreted to fall under the scope of circumstance (iv) mentioned above. Please also refer to “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure—Substantial uncertainties exist with respect to the interpretation and implementation of the newly adopted PRC Foreign Investment Law and its implementation rules and how they may impact the viability of our current corporate structure, corporate governance and business operations.” According to the PRC Foreign Investment Law and its implementation rules, China adopts a system of pre-entry national treatment plus negative list with respect to foreign investment administration, where “pre-entry national treatment” means that the treatment given to foreign investors and their investments at market access stage is no less favorable than that given to domestic investors and their investments, and “negative list” means entry management measures for foreign investment’s access to specific fields or industries. Foreign investment beyond the negative list will be granted national treatment. Foreign investors shall not invest in the prohibited fields as specified in the negative list, and foreign investors who invest in the restricted fields must comply with the special requirements on the shareholding, senior management personnel, etc. The current industry entry clearance requirements governing investment activities in the PRC by foreign investors are set out in two categories, namely the 2024 Negative List and the Encouraged Industry Catalog for Foreign Investment (2025 version), both promulgated by the National Development and Reform Commission and the Ministry of Commerce. Industries not listed in these two categories are generally deemed “permitted” for foreign investment unless specifically restricted by other PRC laws. Industries such as value-added telecommunication business, which we are engaged in, are generally regarded as restricted fields to foreign investment pursuant to the 2024 Negative List, and we conduct business operations in restricted fields through the VIE. On December 19, 2020, the National Development and Reform Commission and the Ministry of Commerce promulgated the Measures for the Security Review of Foreign Investment, which took effect on January 18, 2021. According to the Measures for the Security Review of Foreign Investment, the foreign investment security review work mechanism shall be established to conduct the security review and the general office responsible for the security review will be set in the National Development and Reform Commission and be jointly led by the National Development and Reform Commission and the Ministry of Commerce. Foreign investments in military, national defense-related areas or in locations in proximity to military facilities, or foreign investments that would result in acquiring the actual control of assets in certain key sectors, such as critical agricultural products, energy and resources, equipment manufacturing, infrastructure, transport, cultural products and services, information technology, internet products and services, financial services and technology sectors, are subject to the foreign investment security review by such foreign investment security review work mechanism. Acquiring actual control includes any investment in which foreign investors obtain more than 50% of equity interest in the invested enterprise or, in the event that the equity interest is less than 50%, the voting rights owned by such foreign investors have significant impact on the shareholders meeting and board of directors of the invested enterprise or where there is any other circumstance that enables foreign investors to exert a significant impact on the business decision-making, personnel, finance, technology, etc. of the invested enterprise. Pursuant to the Provisions on Administration of Foreign-Invested Telecommunications Enterprises, promulgated by the State Council in December 2001 and amended most recently in March 2022, unless otherwise provided for by the state, the ultimate foreign equity ownership in a value-added telecommunications services provider may not exceed 50%. For example, the 2024 Negative List allows foreign investors to hold more than 50% equity interests in a value-added telecommunications service provider engaging in e-commerce, domestic multiparty communication, storage-and-forward and call center businesses. Pursuant to the Notice regarding the Strengthening of Ongoing and Post Supervision of Foreign Invested Telecommunication Enterprises issued by the Ministry of Industry and Information Technology in October 2020, foreign investors are no longer subject to the Ministry of Industry and Information Technology pre-approval requirements, but foreign invested telecommunications enterprises are still required to submit foreign investor qualification materials to the Ministry of Industry and Information Technology when applying for new telecommunication operating permits or amended permits. Since further implementing rules with respect to the above new policies on foreign investment in value-add telecommunications services have yet to been promulgated, significant uncertainties exist with respect to their interpretation and implementation by authorities in practice. 62 Table of Contents Pursuant to the Circular on Strengthening the Administration of Foreign Investment in and Operation of Value-added Telecommunications Business issued by the Ministry of Industry and Information Technology in July 2006, a domestic company that holds an ICP license is prohibited from leasing, transferring or selling the license to foreign investors in any form, and from providing any assistance, including providing resources, sites or facilities, to foreign investors that conduct value-added telecommunications business illegally in China. Furthermore, the trademarks and domain names that are used in the value-added telecommunications business must be owned by the domestic ICP license holder or its shareholders. This circular further requires each ICP license holder to have the necessary facilities for its approved business operations and to maintain such facilities in the regions covered by its license. In addition, all value-added telecommunications service providers are required to maintain network and information security in accordance with the standards set forth under PRC regulations. In light of the aforesaid restrictions, we rely on Nanjing Tuniu, our consolidated affiliated entity, to hold and maintain the licenses necessary to provide online marketing services and other value-added telecommunications services in China. For a detailed discussion of our contractual arrangements, please refer to “—C. Organizational Structure.” To comply with these PRC regulations, we operate our website and value-added telecommunications services through Nanjing Tuniu. Nanjing Tuniu and its subsidiaries hold our ICP licenses and own all the domain names used in our value-added telecommunications businesses. Nanjing Tuniu and its subsidiaries are also the owner of all the registered trademarks used in our value-added telecommunications businesses and are the applicant of all the registered trademark applications we are currently making. Regulations on Information Security and Censorship The PRC government regulates and restricts internet content in China to protect state security and ensure the legality of the internet content. The National People’s Congress, China’s national legislative body, enacted a Decision on the Safeguarding of Internet Security in December 2000, as subsequently amended in August 2009, which makes it unlawful to: (1) gain improper entry into a computer or system of strategic importance; (2) disseminate politically disruptive information; (3) leak state secrets; (4) spread false commercial information; or (5) infringe intellectual property rights. Pursuant to the Administrative Measures on Internet Information Services and other applicable laws, internet content providers and internet publishers are prohibited from posting or displaying over the internet content which violates PRC laws and regulations, impairs the national dignity of China, or is reactionary, obscene, superstitious, fraudulent or defamatory. Internet service providers are required to monitor their websites, including electronic bulletin boards. They may not post or disseminate any content that falls within these prohibited categories and must remove any such content from their websites. The PRC government may shut down the websites of ICP license holders that violate any of the above-mentioned content restrictions and revoke their ICP licenses. In addition, the Ministry of Industry and Information Technology has published regulations that subject ICP operators to potential liability for content displayed on their websites and the actions of users and others using their systems, including liability for violations of PRC laws and regulations prohibiting the dissemination of content deemed to be socially destabilizing. On September 15, 2021, the Cyberspace Administration of China promulgated the Opinions of the Cyberspace Administration of China on Further Enforcing the Subject Responsibilities of Website Platforms for Information and Content Management, which further require the website platforms to play the role of the first responsible persons for management of the information and content and effectively improve the level of network management and governance. The Ministry of Public Security has promulgated the Administrative Measures for the Security Protection of International Connections to Computer Information Network in December 1997, as amended in January 2011, that prohibits the use of the internet in ways which, among other things, result in a leakage of state secrets or the distribution of socially destabilizing content. Socially destabilizing content includes any content that incites defiance or violations of PRC laws or regulations or subversion of the PRC government or its political system, spreads socially disruptive rumors or involves cult activities, superstition, obscenities, pornography, gambling or violence. Under PRC laws, state secrets are defined broadly to include information concerning PRC national defense, state affairs and other matters as determined by the PRC authorities. The Ministry of Public Security has the authority to order any local internet service provider to block any internet website at its sole discretion. 63 Table of Contents In December 2005, the Ministry of Public Security promulgated the Provisions on Technological Measures for Internet Security Protection. These measures and the Administrative Measures on Internet Information Services require all ICP operators to keep records of certain information about their users (including user registration information, log-in and log-out time, IP address, content and time of listings by users) for at least 60 days and submit the above information as required by laws and regulations. The ICP operators must regularly update information security and censorship systems for their websites with local public security authorities, and must also report any public dissemination of prohibited content. If an ICP operator violates these measures, the PRC government may revoke its ICP license and shut down its websites. In December 2012, the Standing Committee of the National People’s Congress promulgated the Decision on Strengthening Network Information Protection to enhance the legal protection of information security and privacy on the internet. The decision also requires internet operators to take measures to ensure confidentiality of information of users. In July 2013, the Ministry of Industry and Information Technology promulgated the Provisions on Protection of Personal Information of Telecommunication and Internet Users to regulate the collection and use of users’ personal information in the provision of telecommunication service and internet information service in China. In August 2015, the Standing Committee of the National People’s Congress promulgated the Ninth Amendment to the Criminal Law, which became effective in November 2015 and reinforced the criminal culpability of unlawful collection, transaction, and provision of personal information. It further provides that any network service provider that fails to fulfill the obligations related to internet information security administration as required by applicable laws and refuses to rectify upon orders will be subject to criminal liability. In addition, the Opinions of the Supreme People’s Court, the Supreme People’s Procuratorate, and the Ministry of Public Security on Several Issues Concerning the Application of Criminal Procedures in Handling of Criminal Cases Involving Information Networks, which took effect on September 1, 2022, further provides for detailed procedures facilitating the handling of criminal cases of (i) refusing to perform the obligation of managing the security of the information networks, (ii) illegally using the information networks, or (iii) assisting in the criminal activities of the information networks. In November 2016, the Standing Committee of the National People’s Congress promulgated the PRC Cyber Security Law, as most recently amended in October 2025 with effect as of January 2026, which requires, among others, that network operators take security measures to protect the network from interference, damage and unauthorized access and prevent data from being divulged, stolen or tampered with. Network operators are also required to collect and use personal information in compliance with the principles of legitimacy, properness and necessity, and strictly within the scope of authorization by the subject of personal information unless otherwise prescribed by laws or regulations. The Civil Code of the PRC promulgated in 2020 also provides specific provisions regarding the protection of personal information. On December 15, 2019, the Cyberspace Administration of China promulgated Provisions on Ecological Governance of Network Information Content, which took effect on March 1, 2020. These provisions provide the requirements for the content producers of the network information, the service platforms for the network information and the users of the network information. Among others, these provisions classify the network information into the “encouraged category”, the “prohibited category” and the “prevented and resisted category”. The content producers of network information are encouraged to produce, copy and publish network information in the encouraged category, prohibited from producing, copying or publishing network information in the prohibited category, and shall take measures to prevent and resist the production, reproduction and publication of undesirable information in the prevented and resisted category. In addition, the service platforms for the network information shall strengthen the management of information content, and upon discovery of any prohibited information or prevented and resisted information, shall immediately take measures in accordance with the laws, keep the records, and report the same to the competent government authorities. A service platform for network information shall compile an annual report on the ecological governance of network information. On September 30, 2022, the Cyberspace Administration of China, the Ministry of Industry and Information Technology and the SAMR jointly promulgated the Administrative Provisions on Internet Pop-up Window Information Push Services. According to these provisions, the following actions, among the others, are prohibited: (i) pushing illegal and detrimental information as provided in the Provisions on Ecological Governance of Network Information Content; (ii) pushing news information through a pop-up window without internet news information service license and other applicable licenses or approvals; (iii) unreasonably pushing different information to member users and non-member users, or by any means interfering or affecting users to close pop-up windows; (iv) using algorithms for profiling minor users and pushing information that may affect their physical and mental health; and (v) pushing pop-up windows showing third-party links and QR codes for malicious redirection. The advertising information pushed through pop-up windows shall be identifiable, with “advertising” and close marks conspicuously indicated therein, and one-click close of advertising information shall be ensured. 64 Table of Contents On December 28, 2021, the Cyberspace Administration of China, together with other competent government authorities, jointly promulgated the Cybersecurity Review Measures, which took effect on February 15, 2022. Pursuant to the Cybersecurity Review Measures, critical information infrastructure operators that procure internet products and services, or network platform operators that process data must be subject to the cybersecurity review if their activities affect or may affect national security. The Cybersecurity Review Measures further stipulates that network platform operators that hold personal information of over one million users shall apply with the Cybersecurity Review Office for a cybersecurity review before any public offering at a foreign stock exchange. The competent government authorities may also initiate a cybersecurity review against the operators if the authorities believe that the network products or services or data processing activities of such operators affect or may affect national security. The Cybersecurity Review Measures also set out certain general factors which would be the focus in assessing the national security risk during a cybersecurity review. However, there are still uncertainties as to the exact scope of network product or service or data processing activities that will or may affect national security, and the PRC government authorities may have discretion in the interpretation and enforcement of these measures. On November 16, 2022, the Cyberspace Administration of China promulgated the Revised Administrative Provisions on Services of Online Comment Threading, which took effect on December 15, 2022. These provisions regulate all internet-based information services with the functions of online comment threading, and explicitly include “likes” in the scope of the services of online comment threading. These provisions also specify the way to certify the real identity information of registered users shall be based on the principle of “using the real name at the back end and using an alias or real name voluntarily at the front end”, prohibiting providing services of online comment threading to users who impersonate organizations or other people’s identity information. Under these provisions, comment threading service providers shall establish information security management systems to handle complaints and reports, so as to timely detect and deal with unlawful and detrimental information; develop and employ information security management technology for online comment threading to enhance the ability to deal with unlawful and detrimental information; and strengthen review training for online comment threading to improve the professional skills of the reviewing editors. Also, the comment threading service providers are not allowed to infringe upon the legitimate rights and interests of others and public interests, seek illegal gains, maliciously interfere with the comment threading order, or mislead the public opinion by releasing, deleting and pushing comment information, using software, hiring commercial organisations and personnel to disseminate information and other means of interfering with the presentation of comment information. On June 10, 2021, the Standing Committee of the National People’s Congress promulgated the PRC Data Security Law, which took effect in September 2021. The PRC Data Security Law, among other things, provides for security review procedure for data processing activities that may affect national security. The PRC Data Security Law also introduces a data classification and hierarchical protection system based on the importance of data in economic and social development, as well as the degree of harm it will cause to national security, public interests, or legitimate rights and interests of individuals or organizations when such data is tampered with, destroyed, leaked, or illegally acquired or used. The appropriate level of protection measures is required to be taken for each respective category of data. In addition, the PRC Data Security Law provides a national security review procedure for those data activities which may affect national security and imposes export restrictions on certain data and information. We may be required to make further adjustments to our business practices to comply with this law. On July 12, 2021, the Ministry of Industry and Information Technology and other authorities jointly issued the Provisions on the Administration of Security Vulnerabilities of Network Products. These provisions state that, no organization or individual may abuse the security vulnerabilities of network products to engage in activities that endanger network security, or to illegally collect, sell, or publish the information on such security vulnerabilities. Anyone who is aware of the aforesaid offences shall not provide technical support, advertising, payment settlement and other assistance to the offenders. According to these provisions, network product providers, network operators and platforms collecting network product security vulnerabilities shall establish and improve channels for receiving network product security vulnerability information and keep such channels available. These provisions also ban the provision of undisclosed vulnerabilities to overseas organizations or individuals other than to the product providers. On July 30, 2021, the State Council issued the Regulations on Protection of Critical Information Infrastructure, which became effective on September 1, 2021. Pursuant to these regulations, critical information infrastructure means key network facilities or information systems of critical industries or sectors, such as public communication and information service, energy, transportation, water conservation, finance, public services, e-government affairs and national defense science, the damage, malfunction or data leakage of which may endanger national security, people’s livelihoods and the public interest. However, the exact scope of “critical information infrastructure operators” under the current regulatory regime still remains unclear, and the PRC government authorities may have discretion in the interpretation and enforcement of these laws, rules and regulations. 65 Table of Contents On July 7, 2022, the Cyberspace Administration of China promulgated the Measures for the Security Assessment of Cross-Border Data Transmission, which came into effect on September 1, 2022. According to these measures, data processors shall be subject to security assessment conducted by the Cyberspace Administration of China prior to any cross-border transfer of data if the transfer involves (i) important data; (ii) personal information transferred overseas by operators of critical information infrastructure or a data processor that has processed personal information of more than one million persons; (iii) personal information transferred overseas by a data processor who has already provided personal information of 100,000 persons or sensitive personal information of 10,000 persons overseas accumulatively since January 1 of last year; or (iv) other circumstances as prescribed by the Cyberspace Administration of China. According to the Cyberspace Administration of China, the Measures for the Security Assessment of Cross-Border Data Transmission cover (1) overseas transmission and storage by data processors of data generated during PRC domestic operations, and (2) access to or use of the data collected and generated by data processors and stored in the PRC by overseas institutions, organizations or individuals. Furthermore, any cross-border data transfer activities conducted in violation of the Measures for the Security Assessment of Cross-border Data Transmission before the effectiveness of these measures are required to be rectified by March 2023. On February 22, 2023, the Cyberspace Administration of China promulgated the Provisions on the Prescribed Agreement on Cross-border Data Transfer, effectively on June 1, 2023. Further, on March 22, 2024, the Cyberspace Administration of China promulgated the Provisions on Promoting and Regulating Cross-Border Data Flows, effective on the date of promulgation. The provisions provide several exemptions from undergoing security assessment, obtaining personal information protection certification, or entering into prescribed agreement for cross-border transfer of personal information for businesses. These exemptions include, among others, scenarios where a data processor transfers personal information abroad for the necessity of implementing cross-border HR management in accordance with labor rules and regulations established by law and collective contracts signed in accordance with law and where a data processor, other than CIIO, has cumulatively transferred overseas the personal information (excluding sensitive personal information) of fewer than 100,000 individuals since January 1 of the current year. The provisions also explicitly state that data processors are not required to conduct data security assessment for cross-border data transfers if the concerning data has not been notified or published as important data by relevant departments or regions. Substantial uncertainties still exist with respect to the interpretation and implementation of these measures and provisions in practice and how they will affect our business operation and the value of our securities. Since our businesses engage in cross-border data transfer, we need to comply with the foregoing requirements as well as any other limitations under PRC laws then applicable. Additionally, to the extent we are found to be not in compliance with these laws and requirements, we may be subject to fines, regulatory orders to suspend our operations or other regulatory and disciplinary sanctions, which could materially and adversely affect our business, financial condition and results of operations. On September 24, 2024, the State Council released the Cyber Data Security Regulations, which came into into effect on January 1, 2025. The Cyber Data Security Regulations applies to cyber data processing activities conducted within China and has extraterritorial effects under specific circumstances. The Cyber Data Security Regulations serves as a joint implementation regulation of the Data Security Law and the Personal Information Protection Law. It consolidates and integrates various obligations of different types of cyber data processors, including general obligations of cyber data processors, obligations of personal information processors, obligations of key data processors, and obligations of network platform service providers. The Cyber Data Security Regulations stipulates that cyber data processors should standardize data processing activities, implement cybersecurity level protection measures, establish network data security management systems, and develop cyber data security incident emergency plans. Furthermore, the Cyber Data Security Regulations refines the provisions of the Personal Information Protection Law on notification, consent, and individual exercise of rights. The regulations also clarify the obligations that cyber data processors should also fulfill when processing the personal information of more than 10 million people, such as designating and specifying persons and management bodies responsible for data security. In addition, the State Secrecy Bureau has issued provisions authorizing the blocking access to any website it deems to be leaking state secrets or failing to comply with the legislation regarding the protection of state secrets. As Nanjing Tuniu is an ICP operator, it is subject to the laws and regulations relating to information security. To comply with these laws and regulations, it has completed the mandatory security filing procedures with the local public security authorities, regularly updates its information security and content-filtering systems with newly issued content restrictions, and maintains records of users’ information as required by the laws and regulations. Nanjing Tuniu has also taken measures to delete or remove links to content that to its knowledge contains information violating PRC laws and regulations. The majority of the content posted on our online platform is first screened by our filtering systems. Content containing prohibited words or images is then manually screened by employees who are dedicated to screening and monitoring content published on our platform and removing prohibited content. We believe that with these measures in place, no material violations have arisen out of the public dissemination of prohibited content through our online platform under PRC information security laws and regulations in the past. However, there is a significant amount of content posted on our online platform by our users on a daily basis. If any prohibited content is publicly disseminated in the future and we become aware of it, we will report it to the government authority. We believe these measures taken by us are generally in compliance with the laws and regulations. 66 Table of Contents If, despite the precautions, we fail to identify and prevent illegal or inappropriate content from being displayed on or through our online platform, we may be subject to liability. In addition, these laws and regulations are subject to interpretation by the authorities, and it may not be possible for us to determine in all cases the types of content that could result in liability. To the extent that PRC regulatory authorities find any content displayed on or through our online platform objectionable, they may require us to limit or eliminate the dissemination or availability of such content or impose penalties, including the revocation of our operating licenses or the suspension or shutdown of our online operations. In addition, the costs of compliance with these regulations may increase as the volume of content and the number of users on our online platform increases. Regulations on Internet Privacy The PRC Constitution states that PRC law protects the freedom and privacy of communications of citizens and prohibits infringement of these rights. In recent years, PRC government authorities have promulgated laws and regulations on internet use to protect personal information from any unauthorized disclosure. The Decisions on Strengthening Network Information Protection and the Regulation on Protection of Personal Information of Telecommunication and Internet Users provide that information that identifies a citizen, the time or location for his use of telecommunication and internet services, or involves privacy of any citizen such as his birth date, ID card number, and address is protected by law and must not be unlawfully collected or provided to others. ICP operators collecting or using personal electronic information of citizens must specify the purposes, manners and scopes of information collection and uses, obtain consent of the affected citizens, and keep the collected personal information confidential. ICP operators are prohibited from disclosing, tampering with, damaging, selling or illegally providing others with, collected personal information. ICP operators are also prohibited from collection and use of personal information after a user has stopped using the services. ICP operators are required to take technical and other measures to prevent the collected personal information from any unauthorized disclosure, damage or loss. The Administrative Measures on Internet Information Services prohibit an ICP operator from insulting or slandering a third party or infringing upon the lawful rights and interests of a third party. The telecommunications authorities are further authorized to order ICP operators to rectify unauthorized disclosure. ICP operators are subject to legal liability if they violate provisions on internet privacy. Such requirements are reiterated by the Regulations on Protection of Personal Information of Telecommunications and internet Users. If an ICP operator appoints an agent to undertake any marketing and technical services that involve the collection or use of personal information, the ICP operator is required to supervise and manage the protection of such information. The PRC government, however, has the power and authority to order ICP operators to turn over personal information if an internet user posts any prohibited content or engages in illegal activities on the internet. Pursuant to the Cyber Security Law, personal information refers to all kinds of information recorded by electronic or otherwise that can be used to independently identify or be combined with other information to identify a specific natural persons. Such information includes but not limited to a natural person’s name, date of birth, ID number, biologically identified personal information, address and telephone numbers, etc. The Cyber Security Law also provides that: (i) to collect and use personal information, network operators shall follow the principles of legitimacy, rightfulness and necessity, disclose their rules of data collection and use, clearly express the purposes, means and scope of collecting and using the information, and obtain the consent of the persons whose data is gathered; (ii) network operators shall neither gather personal information unrelated to the services they provide, nor gather or use personal information in violation of the provisions of laws and administrative regulations or the scopes of consent given by the persons whose data is gathered; and shall dispose of personal information they have saved in accordance with the provisions of laws and administrative regulations and agreements reached with the persons whose data is collected; and (iii) network operators shall not divulge, tamper with or damage the personal information they have collected, and shall not provide the personal information to others without the consent of the persons whose data is collected. However, exceptions may apply if the information has been processed and cannot be recovered and thus it is impossible to match such information with any specific persons. The most recently amended Cyber Security Law increases the legal liability for violations and integrates and unifies the penalties for violation of network operation security protection obligations, violation of critical information infrastructure security protection obligations and violation of personal information protection obligations. Since the amendments recently became effective, there still exists substantial uncertainties with respect to its interpretation and implementation. 67 Table of Contents In August 2019, the Cyberspace Administration of China promulgated Provisions on Online Protection of Children’s Personal Information, which came into effect in October 2019. These provisions state that network operators’ collection, storage, transfer, and disclosure of children’s personal information must follow the principles of legitimacy and necessity, awareness and consent, clear purpose, protection of security and legal use. Network operators shall clearly inform children’s guardian and obtain his consent when collecting, storing, using, transferring and disclosing children’s personal information. According to these provisions, network operators must adopt personal information protection rules and user agreements specifically for children’s personal information and appoint persons dedicated to be responsible for the protection of children’s personal information. In addition, network operators must strictly limit the access authorization to children’s personal information within their staff members to the minimum. In April, 2021, the Ministry of Industry and Information Technology issued the Interim Administrative Provisions on Personal Information Protection in Internet Mobile Applications (Draft for Comment). The draft of the Interim Administrative Provisions on Personal Information Protection in Internet Mobile Applications sets forth two principles of collection and utilization of personal information, namely “informed and consent” and “minimum necessity.” In November 2019, the Cyberspace Administration of China, together with the General Office of the Ministry of Industry and Information Technology, the General Office of the Ministry of Public Security and the General Office of the SAMR, published the Guidelines for Identifying Illegal Collection and Use of Personal Information via Apps, which describes six categories of prohibited behaviors on illegal collection or use of user’s personal information via Apps, and further broken down into 31 specific types, including (i) failure to publicly disclose rules of collecting and using personal information, (ii) failure to clearly express the purposes, means and scope of collecting and using personal information, (iii) collecting or using personal information without users’ consent, (iv) violating the principle of necessity and collecting personal information unrelated to services they provide, (v) providing personal information to others without the consent of the persons whose data is collected, and (vi) failure to provide functions of deleting or rectifying personal information as required by laws or failure to publicly disclose contact information for complaint or reporting. On March 12, 2021, the Cyberspace Administration of China, the Ministry of Industry and Information Technology, the Ministry of Public Security and the SAMR jointly promulgated the Provisions on the Scope of Necessary Personal Information Required for Common Types of Mobile Internet Applications, which became effective on May 1, 2021, clarifying the scope of necessary information required for certain common mobile apps and stating that mobile apps operators may not deny users’ access to basic functions and services when the users opt out of the collection of unnecessary personal information. In August 2021, the Standing Committee of the National People’s Congress promulgated the Personal Information Protection Law, which requires, among others, that (i) the processing of personal information should have a clear and reasonable purpose which should be directly related to the processing purpose, in a method that has the least impact on personal rights and interests, and (ii) the collection of personal information should be limited to the minimum scope necessary to achieve the processing purpose to avoid the excessive collection of personal information. Different types of personal information and personal information processing will be subject to various rules on consent, transfer, and security. Entities handling personal information shall bear responsibilities for their personal information handling activities, and adopt necessary measures to safeguard the security of the personal information they handle. As many specific requirements of Personal Information Protection Law remain to be clarified by the Cyberspace Administration of China, other regulatory authorities, and courts in practice, we may be required to make further adjustments to our business practices to comply with the requirements thereunder. On June 27, 2022, the Cyberspace Administration of China promulgated the Administrative Provisions on the Account Information of Internet Users, effective from August 1, 2022, which regulate the registration, use, and management of internet users’ account information by internet information service providers. These administrative provisions require internet information service providers to formulate and disclose internet user account management rules and platform conventions, enter into service agreements with internet users, and clarify the rights and obligations related to account information registration, use, and management. The internet information service providers shall protect and handle the internet users’ account information in accordance with laws. The internet information service providers are also required to set up convenient complaints and whistleblowing portals in prominent locations, improve mechanisms for complaints and reporting acceptance, screening, handling, and feedback and promptly handle complaints and whistleblowing from users and the public. Regulations Relating to Online Transmission of Audio-Visual Programs On April 13, 2005, the State Council promulgated the Certain Decisions on the Entry of the Non-State-owned Capital into the Cultural Industry. On July 6, 2005, the predecessor of the Ministry of Culture and Tourism and other PRC regulatory agencies jointly promulgated the Several Opinions on Introduction of Foreign Investment into the Cultural Sector. According to these regulations, non-state-owned capital and foreign investors are prohibited from conducting the business of transmitting audio-visual programs through information network. 68 Table of Contents According to the Administrative Provisions on Internet Audio-Visual Program Service, promulgated on December 20, 2007 and amended on August 28, 2015, internet audio-visual program service refers to activities of making, editing and integrating audio-visual programs, providing them to the general public via internet, and providing audio-visual programs uploading and transmission services and providers of internet audio-visual program services are required to obtain an internet audio-visual program transmission license, issued by the competent department of radio, film and television or complete certain registration procedures. Providers of internet audio-visual program services are generally required to be either state-owned or state-controlled by the PRC government, and the business to be carried out by such providers must satisfy the overall planning and guidance catalog for internet audio-visual program service determined by the competent department of radio, film and television. In 2008, the State Administration of Radio, Film and Television issued the Notice on Relevant Issues Concerning Application and Approval of License for Online Transmission of Audio-visual Programs, amended on August 28, 2015, which further sets forth detailed provisions concerning the application and approval process regarding the internet audio-visual program transmission license. Further, on March 31, 2009, the State Administration of Radio, Film and Television promulgated the Notice on Strengthening the Administration of the Content of Internet Audio-Visual Programs, which reiterates the requirements for the internet audio-visual programs to be published to the public through information networks, including those on mobile network (if applicable), where applicable, and prohibits certain types of internet audio-visual programs containing violence, pornography, gambling, terrorism, superstitions or other prohibited elements. In addition, the Notice Concerning Strengthening the Administration of the Streaming Service of Online Audio-Visual Programs, promulgated by the State Administration of Press, Publication, Radio, Film and Television on September 2, 2016, emphasizes that, unless a specific internet audio-visual program transmission license is granted, an audio-visual programs service provider is forbidden from engaging in live streaming on major political, military, economic, social, cultural and sports events. According to the notice, online audio-visual live streaming service providers shall censor and tape such programs and retain them for at least 60 days for future check by the administrative departments; and they shall have an emergency plan in place to replace programs in violation of laws and regulations. Bullet-screen comments shall be forbidden in the live streaming of important political, military, economic, social, sports and cultural events. Special censor shall be appointed for bulletscreen comments in the live streaming of general cultural events of social communities and sports events. As of the date of this annual report, we have not obtained an internet audio-visual program transmission license. For detailed analysis, see “Item 3. Key Information—D. Risk Factors—Risks Relating to Doing Business in China—We may be adversely affected by the complexity, uncertainties and changes in PRC regulations of internet and related business and companies.” On November 4, 2016, the Cyberspace Administration of China promulgated the Administrative Provisions on Internet Live-Streaming Services. According to these provisions, an internet live-streaming service provider shall take various measures during operation of live streaming services, including, but not limited to: (i) establish a live-streaming content review platform, conducting classification and grading management according to the online live streaming content categories, user scale and others, add tags to graphics, video, audio or broadcast tag information for platforms; (ii) conduct verification on online live streaming users with valid identification information (e.g., authentic mobile phone numbers) and authentication registration of internet live-streaming issuers based on their identification documents (such as their identity certificates, business licenses and organization code certificates); (iii) examine and verify the authenticity of the identification information of online live streaming service publishers, classify and file such identification information records with the internet information offices at the provincial level where they are located and provide such information to the law enforcement departments upon legal request; and (iv) enter into a service agreement with internet live-streaming services user to specify both parties’ rights and obligations and require them to comply with the laws, regulations and platform conventions; and (v) establish a credit-rating system and a blacklist system, to provide management and services according to such credit rating, prohibit re-registration of accounts by online live streaming service users on the black list and promptly report such users to the internet information offices. According to the Guidelines on Strengthening Supervision of Online Live Streaming Marketing Activities promulgated by the SAMR on November 5, 2020, any network platform shall assume the responsibility and obligation as an e-commerce platform operator according to the PRC E-Commerce Law; provided that this platform provides operators, who sell goods or provide services via internet live streaming, with services such as internet operation place, transaction matchmaking and information publication in order for the transaction parties to independently complete their transaction activities. 69 Table of Contents According to the Notice on Strengthening the Management of Online Show Live Broadcasting and E-Commerce Live Broadcasting promulgated by the National Radio and Television Administration on November 12, 2020, platforms providing online show live streaming or e-commerce live streaming services shall register their information and business operations by November 30, 2020 on the National Internet Audio-visual Platforms Information Management System. Live broadcasting platforms for online shows and e-commerce live broadcasting are requested to strengthen positive value guidance. Live broadcasting platforms for online shows need to manage the hosts and “reward” users based on the real-name registration system, and users who have not registered with real names or who are minors are prohibited from making rewards. The live broadcasting platforms are required to implement real-name registration system to prevent those who have not registered with real names or minors from making rewards. The platform is required to limit the maximum amount of rewards each user may give per time, day and month. According to the Law of the PRC on the Protection of Minors (2020 Revision) effective from June 1, 2021, among others, live broadcasting service providers are not allowed to provide minors under age 16 with online live broadcasting publisher account registration service, and must obtain the consent from parents or guardians and verify the identity of the minors before allowing minors aged 16 or above to register live broadcasting publisher accounts. Furthermore, pursuant to the Administrative Provisions on Online Audio and Video Information Services jointly promulgated by the Cyberspace Administration of China, the Ministry of Culture and Tourism and National Radio and Television Administration on November 18, 2019 and effective on January 1, 2020, when the online audio and video information services provider produce, publish or spread untrue audio-visual information by way of utilizing new technologies such as deep learning or virtual reality, the disseminated information shall be identified in a noticeable way. If any user is found to produce, post or disseminate content prohibited by laws or regulations, the transmission of such information shall be ceased, and disposal measures such as deletion shall be taken to prevent the information from spreading, and such service providers shall save the records and report to the Cyberspace Administration of China, the Ministry of Culture and Tourism, the National Radio and Television Administration, etc. In order to further strengthen the standardized management of the online live streaming industry, certain PRC government agencies jointly issued the Circular on the Guiding Opinions on Strengthening Standardized Management of Online Live Streaming on February 9, 2021, which further states that live streaming platforms that provide online audio-visual program services must obtain internet audio-visual program transmission licenses (or complete the registration on the National Internet Audio-visual Platforms Information Management System) and complete the ICP filing procedure. As of the date of this annual report, we have not completed registration for distributing publications and providing live streaming services on our platform, however, we also provide online live streaming services on third parties’ platforms which have completed such registration. The Opinions on Regulating Online Live Streaming Tipping to Strengthen the Protection of Minors were promulgated on May 7, 2022, and require, among others, online platforms to establish special customer service team for minors to prioritize the handling of complaints and disputes related to minors, and timely refund the tipping from minors using adults’ accounts. Furthermore, on June 8, 2022, the National Radio and Television Administration and the Ministry of Culture and Tourism promulgated the Code of Conduct for Online Streamers, further providing that online streamers shall not use minors or minor characters to conduct non-advertising commercial promotions, performance or as gimmicks to obtain commercial or improper benefits, and shall protect the legitimate rights and interests of minors. Regulations on Overseas Offering and Listing The M&A Rules, which were amended on June 22, 2009, with such amendments becoming effective as of the same date, require offshore SPVs formed for overseas listing purposes through acquisitions of PRC domestic companies and controlled by PRC companies or individuals, to obtain the approval of the CSRC prior to publicly listing their securities on an overseas stock exchange. While the application of this regulation remains unclear, we believe, based on the advice of our PRC counsel, Fangda Partners, that CSRC approval was not required in the context of our initial public offering because (1) CSRC currently has not issued any definitive rule or interpretation concerning whether offerings like our initial public offerings are subject to this regulation and (2) we established our PRC subsidiaries by means of direct investment other than by merger or acquisition of PRC domestic companies, and no explicit provision in the M&A Rules classifies the contractual arrangements between Beijing Tuniu, our PRC subsidiary, Nanjing Tuniu, our consolidated affiliated entity, and its shareholders as a type of acquisition transaction falling under the M&A Rules. On July 6, 2021, the PRC government authorities issued the Opinions on Intensifying Crack Down on Illegal Securities Activities. These opinions emphasized the need to strengthen the administration over illegal securities activities and the supervision on overseas listings by China-based companies and proposed to take effective measures, such as promoting the construction of regulatory systems to deal with the risks and incidents faced by China-based overseas-listed companies. 70 Table of Contents Pursuant to the currently effective 2024 Negative List, if a domestic company engaging in the prohibited business stipulated in the 2024 Negative List seeks an overseas offering and listing, it shall obtain the approval from the competent government authorities. Besides, the foreign investors of the company shall not be involved in the company’s operation and management, and their shareholding percentage shall be subject, mutatis mutandis, to the regulations on the domestic securities investments by foreign investors. On February 17, 2023, the CSRC promulgated the Overseas Listing Trial Measures, and 5 supporting guidelines on the application of Regulatory Rules, which became effective on March 31, 2023, requiring Chinese domestic companies’ overseas offerings and listings of equity securities be filed with the CSRC. The Overseas Listing Trial Measures clarify the scope of overseas offerings and listings by Chinese domestic companies which are subject to the filing and reporting requirements thereunder, and provide, among others, that Chinese domestic companies that have already directly or indirectly offered and listed securities in overseas markets prior to the effectiveness of the Overseas Listing Trial Measures shall fulfil their filing obligations and report their information to the CSRC within three working days after conducting securities offerings and listings outside of mainland China, including but not limited to follow-on offerings, secondary listings and going-private transactions, and follow the reporting requirements within three working days upon the occurrence of any specified circumstances provided thereunder. Moreover, an overseas offering and listing is prohibited if (i) it is prohibited by PRC laws, regulations or other rules, (ii) it may endanger national security as reviewed and determined by competent PRC authorities, (iii) in recent three years, the Chinese operating entities, or their controlling shareholders and actual controllers have committed any criminal act of corruption, bribery, embezzlement of property, misappropriation of property or disruption of the socialist market economic order, (iv) the Chinese operating entities are currently under investigations for suspicion of criminal offenses or major violations, and no clear conclusion has been reached yet; or (v) there is material ownership disputes over the equity held by the controlling shareholder or the shareholder(s) under the control of the controlling shareholder or the actual controller. According to the Overseas Listing Trial Measures, if we are deemed as an indirect overseas listed Chinese domestic company but fail to complete the filing procedures with the CSRC for any of our future securities offerings and listings outside of mainland China, including but not limited to follow-on offerings, secondary listings and going-private transactions, or follow any other reporting requirements required thereunder, we may be subject to penalties, sanctions and fines imposed by the CSRC and departments of the State Council. On February 24, 2023, the CSRC, together with certain other PRC government authorities, issued the Revised Confidentiality and Archives Administration Provisions, which became effective on March 31, 2023. According to the Revised Confidentiality and Archives Administration Provisions, Chinese companies that directly or indirectly conduct overseas offerings and listings, shall strictly abide by the laws and regulations on confidentiality when providing or publicly disclosing, either directly or through their overseas listed entities, documents and materials to securities services providers such as securities companies and accounting firms or overseas regulators in the process of their overseas offering and listing. In the event such documents or materials contain state secrets or working secrets of government agencies, the Chinese companies shall first obtain approval from competent authorities according to law, and file with the secrecy administrative department at the same level with the approving authority; in the event that such documents or materials, if divulged, will jeopardize national security or public interest, the Chinese companies shall strictly fulfill the procedures stipulated by applicable national regulations. The Chinese companies shall also provide a written statement of the specific state secrets and sensitive information provided when providing documents and materials to securities companies and securities service providers, and the securities companies and securities service providers shall properly retain such written statements for inspection. According to the Revised Confidentiality and Archives Administration Provisions, where overseas securities regulators or competent authorities request to inspect, investigate or collect evidence from Chinese domestic companies concerning their overseas offering and listing or their securities firms and securities service providers that undertake securities business for such Chinese domestic companies, such inspection, investigation and evidence collection must be conducted under the cross-border regulatory cooperation mechanism, and the CSRC or competent authorities of the Chinese government will provide necessary assistance pursuant to bilateral and multilateral cooperation mechanism. As the Revised Confidentiality and Archives Administration Provisions were recently promulgated, their interpretation and implementation remain substantially uncertain. 71 Table of Contents Regulations on Air-ticketing The air-ticketing business is subject to the supervision of the China Aviation Transportation Association and its regional branches. Currently the principal regulation governing air-ticketing agencies in China is the Rules on Certification of Qualification for Civil Aviation Transport Sales Agencies, issued by the China Aviation Transportation Association, which became effective on March 31, 2006. Under these rules and the foreign investment regulations, any company acting as an air-ticketing sale agency must obtain approval from the China Aviation Transportation Association, and a foreign investor cannot currently own 100% of an air-ticketing agency in China, except for qualified Hong Kong and Macau aviation marketing agencies. In addition, foreign-invested air-ticketing agencies are not permitted to sell passenger airline tickets for domestic flights in China, except for Hong Kong and Macau aviation marketing agencies. In addition, the China Aviation Transportation Association issued the Supplementary Rules Regarding Sales via the Internet in 2008. These supplementary rules provide that, effective as of June 1, 2008, if an air-ticketing sales agency would like to engage in sales via the internet, it must obtain an ICP license from the local counterpart of the Ministry of Industry and Information Technology and must complete a commercial website registration with the local counterpart of the SAMR. Although we request that travel suppliers provide their licenses or permits to us before entering into agreements with them, we cannot ensure that all of travel suppliers engaged in the air ticketing sales agency service obtained, and maintained, all necessary permits. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Business and Industry—We may not be able to adequately control and ensure the quality of travel products and services sourced from travel suppliers. If there is any deterioration in the quality of their performance, our customers may seek damages from us and not continue using our online platform.” On March 3, 2021, the Ministry of Transport of the People’s Republic of China issued Administrative Provisions on Passenger Services for Public Air Transport, which took effect on September 1, 2021, requiring that operators of the aviation sales network platforms shall preserve the ticket-related information and ensure the completeness, confidentiality and availability of such information. Regulations on Hotel Operation In November 1987, the Ministry of Public Security issued the Measures for the Control of Security in the Hotel Industry, which were most recently amended in March 2022. In June 2004, the State Council promulgated the Decision of the State Council on Establishing Administrative License for the Administrative Examination and Approval Items Really Necessary To Be Retained, which has been amended from time to time. Under these regulations, anyone who applies to operate a hotel is subject to examination and approval by the local public security authority and must obtain a special industry license. The Measures for the Control of Security in the Hotel Industry impose certain security control obligations on the operators. For example, the hotel must examine the identification card of any guest to whom accommodation is provided and make an accurate registration. The hotel must also report to the local public security authority if it discovers anyone violating the law or behaving suspiciously, or an offender wanted by the public security authority. In April 1987, the State Council promulgated the Public Area Hygiene Administration Regulation, which has been most recently amended in December 2024, requiring hotels to obtain a public area hygiene license before opening for business. In March 2011, the Ministry of Health promulgated the Implementation Rules of the Public Area Hygiene Administration Regulation, which has been most recently amended in 2017, requiring, hotel operators to establish hygiene administration systems and keep records of hygiene administration starting from May 1, 2011. In February 2009, the Standing Committee of the National People’s Congress enacted the Food Safety Law, which has been most recently amended in 2021, requiring any hotel that provides food to obtain a food service license. The Fire Prevention Law, as most recently been amended by the Standing Committee of the National People’s Congress in April 2021, and the Provisions on Supervision and Inspection on Fire Prevention and Control, as amended by the Ministry of Public Security in July 2012, require that public gathering places such as hotels submit a fire prevention design plan in order to apply for completion acceptance of fire prevention facilities for their construction projects and to pass a fire prevention safety inspection by the local public security fire department, which is a prerequisite for opening business. In January 2006, the State Council promulgated the Regulations for Administration of Entertainment Places which has been most recently amended in November 2020. Under the regulations, hotels that provide entertainment facilities, such as discos or ballrooms, are required to obtain a license for entertainment business operations. 72 Table of Contents Regulations on Travel Companies The travel industry is subject to the supervision of the Ministry of Culture and Tourism and its local counterparts. The current principal regulations governing travel companies in China include: (i) the Regulations on Travel Companies, issued by the State Council in February 2009, as amended, (ii) implementation rules for the Regulations on Travel Companies, promulgated in April 2009 and amended in December 2016, (iii) the PRC Tourism Law issued by the Standing Committee of the National People’s Congress in 2013, and most recently amended in 2018, and (iv) the Measures for the Administration of the Overseas Tours of Chinese Citizens, issued by the State Council in 2002, and amended in 2017. Under these regulations, a travel company must obtain a license from the Ministry of Culture and Tourism to conduct cross-border travel business and a license from the provincial-level culture and tourism administration to conduct domestic travel company business. The Regulations on Travel Companies permit foreign investors to establish wholly foreign-owned travel companies, as well as joint ventures and cooperative travel companies. Foreign-owned travel companies are allowed to open branches nationwide, but are restricted from engaging in overseas travel business in China, unless otherwise determined by the State Council, or provided under a bilateral free trade agreement between the country and China, or the closer economic partnership agreements between mainland China, Hong Kong and Macau. However, according to regulations promulgated by the State Council and/or other authorities, qualified foreign-invested travel companies registered in certain areas of mainland China are allowed to engage in overseas travel business, except in Taiwan area. The implementation rules for the Regulations on Travel Companies define certain terms used in the Regulations on Travel Companies, for example, the definition of “domestic tourism business,” “inbound travel business” and “overseas travel business”, and set out detailed application requirements to establish a travel company. The above implementation rules also clarify certain aspects of legal liability for travel companies as prescribed in the Regulations on Travel Companies. Pursuant to the PRC Tourism Law, travel companies are prohibited from arranging for compulsory shopping or other activities which charge additional fees on top of the contract prices that tourists have already paid, unless it is agreed upon by both parties through consultation or requested by the tourists and does not affect the itinerary of other tourists. Travel companies are required to pay quality deposits for compensation for damage to tourists’ rights and advance payment of expenses for emergency assistance when the tourists’ personal safety is in danger. Travel companies are required to engage tour guides, who are required to strictly follow the itineraries and are prohibited from altering arrangements without the consent of customers, suspending the provision of services, requesting tips from tourists, and arranging for compulsory shopping or other activities which charge additional fees on top of the contract prices that tourists have already paid by way of induction, deception, coercion or in other illegal forms. The information that travel companies release to attract or organize tourists is required to be authentic and accurate, and no false publicity can be made to mislead tourists. In addition, travel companies conducting business via the internet are required to present information of their travel company licenses on their websites, and ensure the truthfulness and accuracy of the travel-related information they release on their websites. Generally, travel companies soliciting tourists are required to take primary liabilities for any breach of travel contracts, including personal injury or property loss suffered by the tourists attributable to travel service providers and tour operators at destinations and their suppliers. In 2010, China National Tourism Administration released the Measures for Dealing with Tourism Complaints, which took effect as of July 1, 2010. Under these measures, authorities which are responsible for dealing with tourist complaints are required to render a decision on the complaints within 60 days after the date of receipt thereof. Although we take measures, such as requesting travel suppliers to provide their permits and/or licenses, we cannot make sure that all of the travel suppliers maintained all necessary permits. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Business and Industry—We may not be able to adequately control and ensure the quality of travel products and services sourced from travel suppliers. If there is any deterioration in the quality of their performance, our customers may seek damages from us and not continue using our online platform.” Under the Measures for the Administration of the Liability Insurance of Travel Companies which were promulgated in November 2010 and became effective as of February 1, 2011, travel companies are required to procure travel company liability insurance pursuant to these measures. The insurance companies are required to, subject to the liability limits provided under the insurance agreement, reimburse the travel companies for the compensation made by the travel companies for the personal injury or death and the loss of properties of tourists, tour guides or tour leaders. Pursuant to these measures, the liability limit for the personal injury or death of each person cannot be less than RMB200,000. Each of the consolidated affiliated entities engaged in travel agent business has procured and is covered by valid travel company liability insurance. 73 Table of Contents On August 20, 2020, the Ministry of Culture and Tourism issued the Interim Measures on the Administration of Online Tourism Business Services, which took effect on October 1, 2020. These measures provide that operators of online tourism business services shall, among other things, (i) formulate tourist security protection mechanisms, (ii) refrain from transmission of information prohibited by laws and regulations, keep records and report to competent authorities, (iii) implement the classified protection system for cyber security and take management and technical measures for the protection of cyber security, (iv) provide true and accurate tourism service information and establish transparent and accessible reservation channels for transportation, accommodation and sightseeing for tourists; (v) protect the safety of tourists’ personal information and privacy, and (vi) maintain travel agency liability insurance if they conduct travel agency business. Regulations on Online Transaction Platform Operators The Guidelines for the Performance of Social Responsibilities by Online Transaction Platform Operators, which were issued in 2014, stipulate the qualification requirements for operators of online transaction platforms, and certain other obligations, such as examination and registration of any business operator using online transaction platforms, online transaction operators’ contracts with suppliers and customers, and data protection for consumers, among others. Pursuant to these guidelines, online transaction platform operators must (i) establish a consumer protection and consumer dispute settlement system, and (ii) ensure that their complaint and customer support channels are smooth. In addition, online transaction platform operators must also preserve all online transaction data for at least two years from the date of the transaction. Operators of online transaction platform must comply with the Consumer Protection Law, the Product Quality Law, the Anti-unfair Competition Law and other laws and regulations. Furthermore, as required by Jiangsu Administration of Telecommunication, Nanjing Tuniu, our consolidated affiliated entity, has obtained a license of online data processing and transaction which will expire in July 2027. Subject to any clarifications or interpretations that may be issued in future as to these guidelines, we might need to adjust our operational or contracting practices. The PRC E-Commerce Law promulgated in 2018, strengthens the regulation on e-commerce operators relating to consumer protection, personal data protection and intellectual property rights protection. As an e-commerce operator, we are required under the PRC E-Commerce Law, (1) to refrain from conducting false or misleading commercial promotion by fabricating transactions, making up user comments or otherwise, to defraud or mislead consumers, (2) to allow consumers to opt out of search results targeting his or her personal characteristics such as hobbies and shopping patterns and simultaneously show the consumers with options not targeting his or her personally characteristics, (3) to alert consumers of tie-in sales of commodities or services, and shall not set the tied-in commodities or services as a default option, (4) to obtain and maintain a business license and other applicable licenses as required, and disclose information of such licenses at our front-page, (5) to clearly detail the refund procedure for the deposit we received from customers, and not set any unreasonable conditions to refund, (6) to take the risks and responsibilities in the transportation of the products, unless the consumer chooses a courier logistics service provider other than the default service provider, etc. On March 15, 2021, the SAMR promulgated the Measures for the Supervision and Administration of Online Trading, which took effect on May 1, 2021. These measures further strengthen the administration and supervision of online trading activities, and impose a series of regulatory requirements on new forms of online trading, such as online social networking e-commerce and online livestreaming e-commerce. These measures specify typical examples of unreasonable restrictions or conditions imposed by e-commerce platform operators on transactions concluded on their platforms, including prohibiting or restricting the merchants to operate on other e-commerce platforms by means of unfair practices, such as reducing their search exposure, removing their products or services, blocking their stores etc., or prohibiting or restricting the merchants from freely choosing supporting service providers for transactions, such as logistics services providers. 74 Table of Contents On March 1, 2022, the Supreme People’s Court in China issued the Provisions on Issues Concerning the Application of Law for the Trial of Cases on Online Consumption Disputes, which came into effect as of March 15, 2022 and further clarify the responsibilities of online consumption platforms and improve the seven-day no-reason return rules. According to these judicial interpretations, standard terms provided by e-commerce operators that are unfair and unreasonable to consumers may be deemed invalid, and contracts signed between e-commerce operators and others for false publicity by means of fictitious deals, hits or user comments should also be null and void. Moreover, an operator on e-commerce platform shall bear the liability as a product seller or service provider: (1) where the e-commerce platform operator on an e-commerce platform guides the consumer to make a payment through a method other than that provided by the transaction platform; (2) where prizes or gifts provided by the e-commerce operator during a promotion, or commodities bought by consumers for redemption, harm the consumers; (3) when the promised compensation standards are higher than the legal standards. In particular, even if the e-commerce platform does not engage in the sale of its own products or services, but the marks made thereon are sufficient to mislead consumers, the e-commerce platform shall be liable as the product seller or service provider. Furthermore, operators of livestreaming platforms are responsible for verifying the qualification and license of livestreamers who sell food products. On December 18, 2025, the SAMR and the Cyberspace Administration of China jointly issued Measures for the Supervision and Administration of Livestreaming E-commerce, which took effect on Febuary 1, 2026, requiring livestreaming platforms to establish a graded and categorized administration system for livestreamers, strengthen content review mechanisms, and improve systems for handling illegal conducts on the livestreaming e-commerce platforms. Regulations on Consumer Rights Protection According to the PRC Consumer Protection Law, as amended in 2013, and its implementation rules, which were issued on March 15, 2024 and will become effective on July 1, 2024, the rights and interests of consumers that purchase or use commodities or receive services for consumption purposes in daily life are required to be protected, which includes the right to personal safety and the safety of property, the right to be informed about goods and services offered for sale, the right to free choice when selecting goods or services and the right to enjoy fair dealings, respect for their personal dignity and ethnic customs, and compensation for damages suffered. Specifically, the recently issued implementation rules set forth detailed provisions on business operators’ obligations, including protection of consumers’ personal and property safety, avoiding fraudulent advertisement, price transparency, quality guarantee, and protection of consumers’ personal information. Correspondingly, a business operator providing a commodity or service to a consumer is subject to a number of requirements, which includes to ensure that commodities and services meet with certain safety requirements, to disclose serious defects of a commodity or a service and to adopt preventive measures against damage occurring, to provide consumers with accurate information and to refrain from conducting false advertising, and not to set unreasonable or unfair terms for consumers or alleviate or release itself from civil liability for harming the lawful rights and interests of consumers by means of standard contracts, circulars, announcements, shop notices or other means. A business operator may be subject to civil liabilities for failing to fulfill the obligations discussed above. These liabilities include restoring the consumer’s reputation, eliminating the adverse effects suffered by the consumer, offering an apology and compensating for any losses incurred. The following penalties may also be imposed upon business operators for any infraction: issuance of a warning, confiscation of any illegal income, imposition of a fine, an order to cease business operations, revocation of its business license or imposition of criminal liabilities under circumstances that are specified in laws and statutory regulations. The amended Consumer Protection Law further strengthens the protection of consumers and imposes more stringent requirements and obligations on business operators, especially on the business operators through the internet. The consumers whose interests are harmed due to their purchase of goods or acceptance of services on online marketplace platforms may claim damages from sellers or service providers. As to legal liabilities of the online marketplace platform provider, the Consumer Protection Law set forth that, where a consumer purchases products or accepts services via an online trading platform and his or her interests are prejudiced, if the online trading platform provider fails to provide the name, address and valid contact information of the seller, the manufacturer or the service provider, the consumer is entitled to demand compensation from the online trading platform provider. If the online trading platform provider gives an undertaking that is more favorable to consumers, it shall perform such undertaking. Once the online trading platform provider has paid compensation, it shall have a right of recourse against the seller, the manufacturer or the service provider. If an online trading platform provider is aware or ought to have been aware that a seller, manufacturer or service provider is using the online platform to infringe upon the lawful rights and interests of consumers and it fails to take necessary measures, it shall bear joint and several liabilities with the seller, the manufacturer or service provider for such infringement. The Civil Code of the PRC, which took effect on January 1, 2021, also provides that if an online service provider is aware that an online user is committing infringing activities, such as selling counterfeit products, through its internet services and fails to take necessary measures, it shall be jointly and severally liable with said online user for such infringement. If the online service provider receives any notice from the infringed party on any infringing activities, the online service provider shall take necessary measures, including deleting, blocking and unlinking the infringing content, in a timely manner. Otherwise, it will be jointly and severally liable with the online user for the extended damages. 75 Table of Contents The Interim Measures for No Reason Return of Online Purchased Commodities within Seven Days, which was amended in 2020, further clarifies the scope of consumers’ rights to make returns without a reason, including the detailed rules on exceptions, return procedures and online marketplace platform providers’ responsibility to formulate seven-day no-reason return rules, sets up the related consumer protection systems and supervision on merchants for compliance with the rules. The Provisions on Issues Concerning the Application of Law for the Trial of Cases on Tourism-Related Disputes, amended in December 2020, establish liabilities for tour operators and tourism support service providers in the event of contract disputes, personal injury and property damage involving tourists. On March 1, 2022, the Supreme People’s Court in China issued the Provisions on Issues Concerning the Application of Law for the Trial of Cases on Online Consumption Disputes, which took effect as of March 15, 2022 and further clarify the responsibilities of online consumption platforms. According to these judicial interpretations, the e-commerce platform shall be liable as the product seller or service provider if the marks made thereon mislead consumers to believe they are provided by the e-commerce platform, even if it does not engage in the sale of its own products or services. The Regulations for the Implementation of PRC Consumer Protection Law, hereinafter referred to as the “Consumer Protection Law Implementation Regulations”, promulgated by the State Council, which became effective on July 1, 2024, mainly provides detailed provisions on the obligations specified in the Consumer Protection Law, including ensuring consumers’ personal and property safety, handling defective products, prohibiting false advertising, marking prices clearly, using standardized terms, fulfilling quality guarantee responsibilities, and protecting consumers’ personal information, among the others. For example, business operators are required to ensure that their business premises and facilities meet safety standards for personal and property protection and implement necessary safety measures. Business operators must provide consumers with true and comprehensive information about goods or services in an easily understandable manner. Business operators are prohibited from engaging in deceptive or misleading advertising through methods such as fabricating the operator’s qualifications, credentials, or honors, fabricating trade information or operational data, or altering, fabricating, or concealing user reviews. Regarding online consumption, operators are prohibited from using technical means to force or indirectly force consumers to purchase goods or accept services, or to restrict consumers’ability to choose products or services offered by other operators. They are also prohibited from setting different prices or charging standards for the same goods or services under equivalent trading terms without the consumers’ knowledge. Regulations on Advertising Business The SAMR is the primary government authority regulating advertising activities, including online advertising, in China. Regulations that apply to advertising business primarily include: ● Advertisement Law of the People’s Republic of China, promulgated by the Standing Committee of the National People’s Congress as most recently amended on April 29, 2021 and effective as of the same date; ● Administrative Regulations for Advertising, promulgated by the State Council on October 26, 1987 and effective since December 1, 1987; ● Regulations on Internet Information Search Services, promulgated by the Cyberspace Administration of China on June 25, 2016 and effective on August 1, 2016; and ● Administrative Measures for Internet Advertising, promulgated by the SAMR on February 25, 2023 and effective on May 1, 2023. According to the above regulations, companies that engage in advertising businesses must each obtain, from the SAMR or its local branches, a business license which specifically includes operating an advertising business in its business scope. An enterprise engaging in advertising business within the specifications in its business scope does not need to apply for the registration for advertisement publication, provided that such enterprise is not a radio station, television station, newspaper and periodical publishers. 76 Table of Contents PRC advertising laws and regulations set certain content requirements for advertisements in China, including, among other things, prohibitions on false or misleading content, superlative wording, socially destabilizing content or content involving obscenities, superstition, violence, discrimination or infringement of the public interest. Advertisers, advertising agencies, and advertising distributors are required to ensure that the content of the advertisements they prepare or distribute is true and in full compliance with applicable laws. In providing advertising services, advertising operators and advertising distributors must verify that the content of the advertisements complies with applicable PRC laws and regulations. Prior to distributing advertisements that are subject to government censorship and approval, advertising distributors are obligated to verify that such censorship has been performed and approval has been obtained. Violation of these regulations may result in penalties, and where serious violations occur, the SAMR or its local branches may revoke such offenders’ licenses or permits for their advertising business operations. On February 25, 2023, the SAMR released the Administrative Measures for Internet Advertising, which came into effect on May 1, 2023 and set out, among other things, the following key requirements for internet advertising activities: ● online advertisements for tobacco (including e-cigarettes) are not allowed, and online advertisements for prescription medicine are not allowed unless otherwise permitted by laws and regulations; ● online advertisements for special commodities and services such as medical treatments, pharmaceuticals, medical devices, agrochemicals, veterinary medicine, health foods and food for special medical purposes must be reviewed by competent authorities before online publication, and the advertisements for such commodities and services are not allowed to be published in the form of introducing health and wellness knowledge. In addition, when introducing health and wellness knowledge, information such as the address or contact information of commodity operators or service providers and shopping links related to these products must not appear on the same page or at the same time; ● advertisements for medical treatments, pharmaceuticals, health foods, special medical purpose formula foods, medical devices, cosmetics, alcohol, beauty advertisements, and online game advertisements that are detrimental to the physical and mental health of minors shall not be published on internet media targeted to minors; ● internet advertisements must be visibly marked as “advertisement”, while paid-search results must be obviously distinguished from natural search results; ● when promoting commodities or services through knowledge introduction, experience sharing or consumer evaluation, and purchase methods such as shopping links are attached, the advertisements publishers shall visibly mark them as “advertisements”; ● “pop-up ads” must be clearly marked with a “close” sign and be closable with one click. Furthermore, the advertisers and publishers are prohibited from engaging in the following behaviors that affect one-click closure: (i) there is no “close” sign or the timing is over to close the advertisements; (ii) the “close” sign is false, not clearly identifiable or difficult to locate which set up obstacles to close the advertisements; (iii) closing the advertisements requires more than two clicks; (iv) during the process of browsing the same page or document, the advertisements continue to pop up after closing, which affect users’ normal use of the network. These requirements also apply to app-opening ads displayed when launching an internet application; ● if the internet advertisements are published by means of algorithmic recommendation or other technologies, the rules related to algorithm recommendation services and advertising records shall be included in the advertising archives. The advertisers are responsible for the authenticity of the content of internet advertisements, while the internet advertisement publishers and advertisement agencies are required to establish, improve, and implement registration, review and archive management systems for internet advertising businesses. The Administrative Measures for Internet Advertising require internet platform operators providing internet information services to take measures to prevent and stop illegal advertisements, which include recording and storing the real identity information of users who publish advertisements for at least three years, monitoring and investigating the content of advertisements, and employing other measures to stop illegal advertisements. Internet platform operators are also required to establish effective complaint and reporting mechanisms, cooperate with market regulatory departments in investigating illegal conduct, and use measures such as warnings, suspending or terminating services for users who publish illegal advertisements. 77 Table of Contents Regulations on Insurance Brokerage According to the Measures for the Regulations of the Internet Insurance Business issued by the former China Banking and Insurance Regulatory Commission on December 7, 2020 and effective on February 1, 2021, “internet insurance business” means the insurance operations in which insurance institutions conclude insurance contracts and provide insurance services through the internet, “insurance institutions” include insurance companies and insurance intermediary institutions such as insurance brokers. Internet insurance business shall only be carried out by legally established insurance institutions. No insurance institution may carry out the internet insurance business beyond the permitted business scope. An insurance institution, including insurance broker, shall sell internet insurance products or provide insurance brokerage services via its independently operated network platform or the independently operated network platform of any other insurance institution, and the insurance application page shall belong to its independently operated network platform, except where any government department requires policyholders to complete the entry of insurance application information on the network platform prescribed by the government in the public interest. “Independently operated network platform” refers to any network platform being independently operated with complete data permission, which is legally established by an insurance institution for the purpose of internet insurance business operation; network platforms established by branches of insurance institutions and non-insurance institutions related to insurance institutions in terms of equity or personnel shall not be deemed as independently operated network platforms. An insurance institution shall continue to raise the level of risk prevention and control of internet insurance business, improve the risk monitoring, early warning and early intervention mechanism, and ensure the independent operation of its independently operated network platform. According to the Provisions on the Supervision of Insurance Brokers promulgated by the China Insurance Regulatory Commission, which was merged into the China Banking and Insurance Regulatory Commission and now known as the National Financial Regulatory Administration, on February 1, 2018 and effective on May 1, 2018, the Implementation Measures for Insurance Intermediary Business Administrative Licensing and Record-Filing promulgated by the China Banking and Insurance Regulatory Commission on October 28, 2021 and effective on February 1, 2022, the insurance brokerage company must obtain an insurance brokerage license from the China Banking and Insurance Regulatory Commission before engaging in insurance brokerage business. One of the consolidated affiliated entities has obtained the insurance brokerage license to operate the following insurance brokerage businesses: (i) draft insurance plans for insurance applicants, select insurance companies and handle insurance application formalities nationwide; (ii) assist the insured parties or beneficiaries in making claims; (iii) reinsurance brokerage, (iv) provide disaster prevention, loss prevention, risk evaluation or risk management advisory services to entrusting parties; (v) other businesses approved by the China Banking and Insurance Regulatory Commission. According to the Notice of the General Office of the China Banking and Insurance Regulatory Commission on Relevant Matters of Further Regulating the Internet Personal Insurance Businesses of Insurance Institutions promulgated on October 12, 2021, the insurance intermediary institution carrying out the internet personal insurance business shall be a national institution and shall have corresponding technical capacity, operating capacity and service capacity, the customer service personnel of an insurance intermediary institution are not allowed to conduct proactive marketing and their salaries shall not be linked to the sales assessment indicators of the internet personal insurance. In September 2023, the National Financial Regulatory Administration promulgated the Measures for the Administration of Insurance Sales Activities, which came into force on March 1, 2024. These measures categorize insurance sales activities of insurance companies and insurance intermediaries, including insurance agency companies, into three phases namely pre-sales, in-sales, and post-sales activities, setting forth varied regulatory requirements on insurance sales activities in each phase. Regulations on Intellectual Property Rights The PRC has adopted legislation governing intellectual property rights, including trademarks, domain names and copyrights. Trademark The PRC Trademark Law and its implementation rules protect registered trademarks. The State Intellectual Property Office is responsible for the registration and administration of trademarks throughout the PRC. The Trademark Law has adopted a “first-to-file” principle with respect to trademark registration. As of December 31, 2025, we had 494 registered trademarks in different applicable trademark categories in China. 78 Table of Contents In addition, pursuant to the PRC Trademark Law, counterfeit or unauthorized production of the label of another person’s registered trademark, or sale of any label that is counterfeited or produced without authorization will be deemed as an infringement to the exclusive right to use a registered trademark. The infringing party will be ordered to stop the infringement immediately, a fine may be imposed and the counterfeit goods will be confiscated. The infringing party may also be held liable for the right holder’s damages, which will be equal to the gains obtained by the infringing party or the losses suffered by the right holder as a result of the infringement, including reasonable expenses incurred by the right holder for stopping the infringement. If the gains or losses, or royalties are difficult to determine, the court may render a judgment awarding damages of up to RMB5,000,000. Domain Name Domain names are protected under the Administrative Measures on the Internet Domain Names promulgated by the Ministry of Industry and Information Technology in August 2017 and effective on November 2017. The Ministry of Industry and Information Technology is the major regulatory body responsible for the administration of the PRC internet domain names, under the supervision of which the China Internet Network Information Center is responsible for the daily administration of .cn domain names and Chinese domain names. The Ministry of Industry and Information Technology issued the Administrative Measures on Internet Domain Name on August 14, 2017 and then the China Internet Network Information Center issued the Rules for the Implementations of the Registration of State Top-Level Domain Name on June 18, 2019, which set forth basic rules for registration of domain names. The China Internet Network Information Center adopts the “first to file” principle with respect to the registration of domain names. In November 2017, MIIT promulgated the Notice of the Ministry of Industry and Information Technology on Regulating the Use of Domain Names in Internet Information Services to further regulate the use of domain names in internet information services. As of December 31, 2025, we had 99 registered domain names, including www.tuniu.com. Copyright Works are protected under the PRC Copyright Law adopted by the National People’s Congress in 1990, as amended in 2001, 2010 and 2020, as well as its implementation rules adopted by the State Council in 1991, as amended in 2002, 2011 and 2013. Whether such protected works are published or not, copyrights duly obtained and enjoyed by the author or other copyright owner remain unaffected. Copyright owners, however, could register such protected works on a voluntary basis with National Copyright Administration or its local counterparts. We have registered 27 artwork copyrights in China. Pursuant to the PRC Copyright Law and its implementation rules, creators of protected works enjoy personal and property rights, including, among others, the right of disseminating the works through information network. Pursuant to PRC regulations, rules and interpretations, internet service providers will be jointly liable with the infringer if they (i) participate in, assist in or abet infringing activities committed by any other person through the internet, (ii) are or should be aware of the infringing activities committed by their website users through the internet, or (iii) fail to remove infringing content or take other action to eliminate infringing consequences after receiving a warning with evidence of such infringing activities from the copyright holder. In addition, where an ICP service operator is clearly aware of the infringement of certain content against another’s copyright through the internet, or fails to take measures to remove contents upon receipt of the copyright owner’s notice, and as a result, it damages the public interest, the ICP service operator could be ordered to stop the tortious act and be subject to other administrative penalties such as confiscation of illegal income and fines. To comply with these laws and regulations, we have implemented internal procedures to monitor and review the content we have licensed from content providers before they are released on our website and remove any infringing content promptly after we receive notice of infringement from the legitimate rights holder. Software Copyrights Computer Software Protection Regulations promulgated by the State Council in December 2001, amended in 2011 and 2013, provide that the rights and interests of computer software copyright owners are protected. A Chinese citizen, legal person, or other organization shall be entitled to the copyright in software developed thereby regardless of whether the software has been published or not. A foreigner’s or stateless person’s software shall enjoy copyright if it is first distributed in China. In order to further implement the Computer Software Protection Regulations, the State Copyright Bureau issued the Computer Software Copyright Registration Procedures in February 2002, amended in 2004, which apply to software copyright registration, license contract registration and transfer contract registration. As of December 31, 2025, we had 175 registered computer software copyrights in China. 79 Table of Contents Patents Patents are protected under the PRC Patent Law adopted by the National People’s Congress in 1984, as amended in 1992, 2000, 2008 and 2020, as well as its implementation rules adopted by the State Council in 1985, as amended in 1992, 2001, 2002, 2010 and 2023. The Patent Office under the State Intellectual Property Office is responsible for receiving, examining and approving patent application. A patent is valid for a term of 20 years in the case of an invention and a term of 10 years in the case of utility models and designs. A third-party user must obtain consent or a proper license from the patent owner to use the patent. Otherwise, the use constitutes an infringement of patent rights. Civil Code of the PRC In accordance with the Civil Code of the PRC promulgated by the National People’s Congress on May 28, 2020, which became effective as of January 1, 2021, internet users and internet service providers bear tortious liabilities in the event they infringe other persons’ rights and interests through the internet. Where an internet user conducts tortious acts through internet services, the infringed person has the right to request the internet service provider to take necessary actions such as deleting contents, screening and delinking. The internet service provider, failing to take necessary actions after being informed, will be subject to joint and several liabilities with the Internet user with regard to the additional damages incurred. If an internet service provider knows an internet user is infringing other persons’ rights and interests through its internet service but fails to take necessary action, it shall be jointly and severally liable with the internet user. We have internal policies designed to reduce the likelihood that user content may be used without proper licenses or third-party consents. When we are approached and requested to remove content uploaded by users on the grounds of infringement, we investigate the claims and remove any uploads that appear to infringe the rights of a third party after our reasonable investigation and determination. Regulations on Foreign Currency Exchange The principal regulations governing foreign currency exchange in China are the Foreign Exchange Administration Regulations. Under PRC foreign exchange regulations, payments of current account items, such as profit distributions, interest payments and trade and service-related foreign exchange transactions, can be made in foreign currencies without prior approval from the SAFE, by complying with certain procedural requirements. By contrast, approval from or registration with competent government authorities is required where RMB is to be converted into foreign currency and remitted out of mainland China to pay capital account items, such as direct investments, repayment of foreign currency-denominated loans, repatriation of investments and investments in securities outside of mainland China. We generally follow the regulations and apply to obtain the approval of or registration with SAFE and other PRC government authorities or designated banks. In March 2015, SAFE promulgated Circular 19, which expands a pilot reform of the administration of the settlement of the foreign exchange capitals of foreign-invested enterprises nationwide. Circular 19 allows all foreign-invested enterprises established in the PRC to settle their foreign exchange capital on a discretionary basis according to the actual needs of their business operation, provides the procedures for foreign invested companies to use Renminbi converted from foreign currency-denominated capital for equity investments. SAFE further promulgated the Notice of the State Administration of Foreign Exchange on Reforming and Standardizing the Foreign Exchange Settlement Management Policy of Capital Account, or Circular 16, effective June 2016, which provides that discretionary settlement of foreign exchange applies to foreign exchange capital, foreign debt offering proceeds and remitted foreign listing proceeds, and the corresponding RMB capital converted from foreign exchange may be used to extend loans to related parties or repay intercompany loans (including advances by third parties). In January 2017, SAFE promulgated the Circular on Further Improving Reform of Foreign Exchange Administration and Optimizing Genuineness and Compliance Verification, which stipulates several capital control measures with respect to the outbound remittance of profits from domestic entities to offshore entities, including (i) banks must check whether the transaction is genuine by reviewing board resolutions regarding profit distribution, original copies of tax filing records and audited financial statements, and (ii) domestic entities must retain income to account for previous years’ losses before remitting any profits. Moreover, pursuant to this circular, domestic entities must explain in detail the sources of capital and how the capital will be used, and provide board resolutions, contracts and other proof as a part of the registration procedure for outbound investment. 80 Table of Contents On October 23, 2019, SAFE issued Circular of the State Administration of Foreign Exchange on Further Promoting the Facilitation of Cross-border Trade and Investment, or Circular 28, which took effect on the same day and was further amended on December 4, 2023. This Circular 28, as amended, allows foreign-invested enterprises of non-investment nature to use their capital funds to make equity investments in China, provided that such investments do not violate the effective special entry management measures for foreign investment (negative list) and the target investment projects are genuine and in compliance with laws. The negative list of usage includes: (i) securities investment or other investment and wealth management (except for wealth management products and structured deposits with risk rating results of not higher than Grade II); (ii) granting loans to non-affiliated enterprises (except for circumstances where it is specified in the scope of business, or in four Pilot Free Trade Zone); or (iii) purchasing residential real estate not for self-use (except for enterprises engaging in real estate development and leasing operation). According to the Circular on Optimizing Administration of Foreign Exchange to Support the Development of Foreign-related Business issued by SAFE on April 10, 2020, eligible enterprises are allowed to make domestic payments with their income under capital accounts such as capital funds, foreign debts and proceeds from overseas listing without submitting evidence of genuineness to the banks in advance, provided the use of such funds is genuine and in compliance with administrative regulations on the use of income under capital accounts. The Circular of the State Administration for Foreign Exchange on Deepening of Reform in the Administration of Foreign Exchange for Cross-border Investment and Financingm, or Circular 43 promulgated by SAFE on September 12, 2025 further narrows the negative list governing the use of capital account income originally stipulated under the Circular 28. Pursuant to the Circular 43, the restriction about funds “shall not be used to purchase residential properties for non-self-use purposes (except for enterprises engaged in real estate development or leasing operations)” has been removed from the negative list, while the remaining three categories of restrictions on the use of capital account income continue to apply. Regulations on Dividend Distribution The principal regulations governing distribution of dividends of wholly foreign-owned enterprises include the PRC Company Law, which applies to both PRC domestic companies and foreign-invested companies, and the PRC Foreign Investment Law and its implementation rules, which apply to foreign-invested companies. Under these laws, regulations and rules, both domestic companies and foreign-invested companies in the PRC are required to set aside as general reserves at least 10% of their after-tax profit, until the cumulative amount of their reserves reaches 50% of their registered capital. PRC companies are not permitted to distribute any profits until any losses from prior fiscal years have been offset. Profits retained from prior fiscal years may be distributed together with distributable profits from the current fiscal year. Regulations on Offshore Financing Pursuant to the Circular on Relevant Issues Concerning Foreign Exchange Control on Domestic Residents’ Offshore Investment and Financing and Roundtrip Investment through Special Purpose Vehicles issued by SAFE on July 4, 2014, prior registration with the local SAFE branch is required for PRC residents in connection with their direct establish or indirect control of an offshore entity, for the purposes of overseas investment and financing, with assets or equity interests of onshore companies or offshore assets or interests held by such PRC residents, referred to in this circular as a “special purpose vehicle.” The PRC residents are also required to amend the registration or filing with the local SAFE branch in the event of any significant changes with respect to the special purpose vehicle, such as increase or decrease of capital contributed by PRC residents, share transfer or exchange, merger, division or other material event. 81 Table of Contents Regulations on Employee Stock Option Plans In February 2012, SAFE promulgated the Stock Option Rules. Under the Stock Option Rules and other rules and regulations, PRC residents who participate in stock incentive plans in an overseas publicly-listed company, which includes employee stock ownership plans, stock option plans and other incentive plans permitted by the laws and regulations, are required to register with SAFE or its local branches and complete certain other procedures. Participants of a stock incentive plan in an overseas publicly listed company who are PRC residents must retain a qualified PRC agent, which could be a PRC subsidiary of the overseas publicly listed company or another qualified institution selected by the PRC subsidiary, to conduct the SAFE registration and other procedures with respect to the stock incentive plan on behalf of its participants. The participants must also retain an overseas entrusted institution to handle matters in connection with their exercise of stock options, the purchase and sale of corresponding stocks or interests and fund transfers. In addition, the PRC agent is required to amend the SAFE registration with respect to the stock incentive plan if there is any material change to the stock incentive plan, the PRC agent or the overseas entrusted institution or other material changes. The PRC agents must, on behalf of the PRC residents who have the right to exercise the employee share options, apply to SAFE or its local branches for an annual quota for the payment of foreign currencies in connection with the PRC residents’ exercise of the employee share options. The foreign exchange proceeds received by the PRC residents from the sale of shares under the stock incentive plans granted and dividends distributed by the overseas listed companies must be remitted into the bank accounts in the PRC opened by the PRC agents before distribution to such PRC residents. In addition, the State Taxation Administration has issued circulars concerning employee share options, under which our employees working in the PRC who exercise share options will be subject to PRC individual income tax. Our PRC subsidiaries have obligations to file documents related to employee share options with the tax authorities and to withhold individual income taxes of those employees who exercise their share options. Regulations on Employment The PRC Labor Law, the PRC Labor Contract Law and its implementation rules provide requirements concerning employment contracts between an employer and its employees. If an employer fails to enter into a written employment contract with an employee within one year from the date on which the employment relationship is established, the employer would be deemed to have entered into a labor contract without a fixed term with such employee. In addition, the employer must rectify the situation by entering into a written employment contract with the employee and pay the employee twice the employee’s salary for the period from the day following the lapse of one month from the date of establishment of the employment relationship to the day prior to the execution of the written employment contract. The Labor Contract Law and its implementation rules also require compensation to be paid upon certain terminations. In addition, if an employer intends to enforce a non-compete provision with an employee in an employment contract or non-competition agreement, it has to compensate the employee on a monthly basis during the term of the restriction period after the termination or ending of the labor contract. Employers in most cases are also required to provide a severance payment to their employees after their employment relationships are terminated. Enterprises in China are required by PRC laws and regulations to participate in certain employee benefit plans, including social insurance funds, namely a pension plan, a medical insurance plan, an unemployment insurance plan, a work-related injury insurance plan, a maternity insurance plan, and a housing provident fund, and contribute to the plans or funds in amounts equal to certain percentages of salaries, including bonuses and allowances, of the employees as specified by the local government from time to time at locations where they operate their businesses or where they are located. Regulations on Taxation For a discussion of applicable PRC tax regulations, see “Item 5. Operating and Financial Review and Prospects—A. Operating Results—Taxation.” 82 Table of Contents C.Organizational Structure We restructured the organizational structure of Nanjing Tuniu in February 2021, during which the shareholders of Nanjing Tuniu other than Mr. Dunde Yu transferred all of their equity interest in Nanjing Tuniu to Messrs Dunde Yu and Anqiang Chen. On February 19, 2021, Beijing Tuniu, Nanjing Tuniu and the then existing shareholders of Nanjing Tuniu, namely Dunde Yu, Haifeng Yan, Tong Wang, Jiping Wang, Xin Wen, Yongquan Tan and Haifeng Wang entered into a termination agreement to terminate the existing contractual arrangements and, on the same day, Beijing Tuniu, Nanjing Tuniu and the new shareholders of Nanjing Tuniu, namely Dunde Yu and Anqiang Chen, entered into new contractual arrangements which are substantially similar to the contractual arrangements we had historically adopted. See “—Agreements that Enable us to Direct the Activities of Nanjing Tuniu” below. The following diagram illustrates our corporate structure, including our principal subsidiaries, consolidated affiliated entity and its principal subsidiaries, as of the date of this annual report on Form 20-F: (1) Messrs. Dunde Yu and Anqiang Chen hold 80.89% and 19.11% equity interests in Nanjing Tuniu, respectively. Among the shareholders of Nanjing Tuniu, Mr. Dunde Yu is our founder, director and an ultimate shareholder of Tuniu Corporation. Mr. Anqiang Chen is our Financial Controller. Agreements that Enable us to Direct the Activities of Nanjing Tuniu Purchase Option Agreement. Pursuant to the purchase option agreement entered into on February 19, 2021, each of the shareholders of Nanjing Tuniu irrevocably and exclusively grants Beijing Tuniu an option to purchase, or have its designated person or persons to purchase, at its discretion, to the extent permitted under PRC law, all or part of such shareholder’s equity interests in Nanjing Tuniu. The aggregate purchase price is RMB2.43 million. The shareholders of Nanjing Tuniu agree, without the prior written consent of Beijing Tuniu, not to transfer or otherwise dispose of their equity interests in Nanjing Tuniu, pledge their equity interests or create any encumbrance on their equity interests. The agreement remains effective until all equity interests held in Nanjing Tuniu by the shareholders of Nanjing Tuniu are transferred or assigned to Beijing Tuniu or its designated person or persons. The purchase price has been prepaid by Beijing Tuniu to the shareholders of Nanjing Tuniu. 83 Table of Contents Equity Interest Pledge Agreement. Pursuant to the equity interest pledge agreements entered into by and between Beijing Tuniu, Nanjin Tuniu and each shareholder of Nanjing Tuniu on February 19, 2021, each of the shareholders of Nanjing Tuniu pledge all of such shareholder’s equity interests in Nanjing Tuniu to guarantee the performance of the obligations under the purchase option agreement. If the shareholders of Nanjing Tuniu breach their contractual obligations under the purchase option agreement and shareholders’ voting rights agreement, Beijing Tuniu, as the pledgee, will have the right to either conclude an agreement with the pledger to obtain the pledged equity or seek payments from the proceeds of the auction or sell-off the pledged equity to any person pursuant to the PRC law. The shareholders of Nanjing Tuniu agree that, during the term of the equity interest pledge agreement, they will not dispose of the pledged equity interests or create or allow any encumbrance on the pledged equity interests. During the equity pledge period, Beijing Tuniu is entitled to all dividends and other distributions made by Nanjing Tuniu. The equity interest pledge became effective on the date when the equity interest pledge was registered with the local administration for market regulation, and remains effective until the shareholders of Nanjing Tuniu discharge all their obligations under the purchase option agreement, or Beijing Tuniu enforces the equity interest pledge, whichever is earlier. We have completed the registration of the equity interest pledge with Xuanwu Branch of Nanjing Administration for Market Regulation. Shareholders’ Voting Rights Agreement. Pursuant to the shareholders’ voting rights agreement entered into on February 19, 2021, the shareholders of Nanjing Tuniu appointed Beijing Tuniu or its designated person as their attorney-in-fact to exercise all of their voting and related rights with respect to their equity interests in Nanjing Tuniu, including attending shareholders’ meetings, voting on all matters of Nanjing Tuniu requiring shareholder approval, nominating and appointing directors, convening extraordinary shareholders’ meetings, and other voting rights pursuant to the then-effective articles of association of Nanjing Tuniu. The shareholders’ voting rights agreement will remain in force until all the parties to the agreement mutually agree to terminate the agreement in writing or cease to be shareholders of Nanjing Tuniu. Irrevocable Powers of Attorney. Pursuant to the powers of attorney dated February 19, 2021, the shareholders of Nanjing Tuniu each irrevocably appointed Beijing Tuniu as the attorney-in-fact to exercise all of such shareholder’s voting and related rights with respect to such shareholder’s equity interests in Nanjing Tuniu, including but not limited to attending shareholders’ meetings, voting on all matters of Nanjing Tuniu requiring shareholder approval, nominating and appointing directors, convening extraordinary shareholders’ meetings, and other voting rights pursuant to the then-effective articles of association of Nanjing Tuniu. Each power of attorney will remain in force until the shareholders’ voting rights agreement expires or is terminated. Agreement that Allows us to Receive Economic Benefits from Nanjing Tuniu Cooperation Agreement. Under the cooperation agreement entered into on February 19, 2021, Beijing Tuniu has the exclusive and irrevocable right to provide to Nanjing Tuniu business consulting, technical consulting and technical services related to the businesses of Nanjing Tuniu and its subsidiaries. Beijing Tuniu owns the exclusive intellectual property rights created by Nanjing Tuniu or its employees as a result of the performance of this agreement. Beijing Tuniu has the right to receive, or designate a person or persons to receive, a quarterly service fee, which equals the profits of each of Nanjing Tuniu and its subsidiaries, to which it provides such business consulting, technical consulting and technical services, provided that such amount of service fees can be adjusted by Beijing Tuniu at its sole discretion. This agreement shall be effective retroactive to January 24, 2014 and will remain effective until expiration of Beijing Tuniu’s business term, unless Beijing Tuniu exercises its unilateral right to terminate the agreement, one of the parties is declared bankrupt or Beijing Tuniu is not able to provide consulting and services as agreed for more than three consecutive years because of force majeure. Nanjing Tuniu is not permitted to terminate the agreement in any other event. In 2023, 2024 and 2025, we received service fees of RMB41.3 million, RMB48.2 million and RMB58.9 million (US$8.4 million), respectively, from the consolidated affiliated entities, which were eliminated on consolidated financial statements. D.Property, Plants and Equipment Our principal executive offices, consisting of our administrative center, sales and marketing division, technical services department and call center, are located on leased premises in Jiangsu. We lease these premises under lease agreements from unrelated third parties, and we plan to renew these leases from time to time as needed.

The following discussion of our financial condition and results of operations is based upon, and should be read in conjunction with, our audited consolidated financial statements and the related notes included in this annual report on Form 20-F. This report contains forward-looking statements. See “Forward-Looking Information.” In evaluating our business, you should carefully consider the information provided under the caption “Item 3. Key Information—D. Risk Factors” in this annual report on Form 20-F. We caution you that our businesses and financial performance are subject to substantial risks and uncertainties. A.Operating Results Overview We are an online leisure travel company in China that generates revenue from packaged tours and travel-related services for leisure travelers. We generated net revenues of RMB441.3 million, RMB513.6 million and RMB578.0 million (US$82.6 million) in 2023, 2024 and 2025, respectively. We recognize revenues on a net basis for business arrangements under which our role acts as an agent that provides tour booking services under our organized tour arrangements with tour operators. We recognize revenues on a gross basis for business arrangements for our own brand Niu Tour in which we act as a principal. We had a net loss of RMB101.1 million and a net income of RMB83.7 million and RMB29.7 million (US$4.2 million) in 2023, 2024 and 2025, respectively. We generally collect payments from our customers upon contract confirmation before we pay travel suppliers. Our net cash provided by operating activities was RMB232.8 million and RMB96.3 million for the year ended December 31, 2023 and 2024 respectively, and our net cash used in operating activities was RMB109.1 million (US$15.6 million) for the year ended December 31, 2025. Our ability to achieve and maintain profitability depends on our ability to effectively reduce our costs and expenses as a percentage of our net revenues. Our cost of revenues were RMB147.6 million, RMB155.6 million and RMB243.0 million (US$34.7 million) in 2023, 2024 and 2025, respectively, representing 33%, 30% and 42% of our revenues, respectively. Our operating expenses were RMB395.6 million, RMB294.8 million and RMB323.7 million (US$46.3 million) in 2023, 2024 and 2025, respectively, representing 90%, 57% and 56% of our revenues, respectively. The costs and expenses were affected by the level of spending associated with our business operations, including expenses related to regional expansion, branding and advertising campaigns, mobile related initiatives, technology, product development and administrative personnel, such as share-based compensation. See “Item 3. Key Information—D. Risk Factors—Risks Related to Our Business and Industry—We face risks related to natural disasters and health epidemics.” Selected Income Statement Items Revenues We generate revenues primarily from sales of packaged tours, which consist of organized tours and self-guided tours. The following table sets forth the components of our revenues in absolute amounts and as percentages of our net revenues for the periods presented. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Years Ended December 31, ​ ​ 2023 ​ 2024 ​ 2025 ​ ​ ​ ​ RMB ​ ​ ​ % ​ ​ ​ RMB ​ % ​ ​ ​ RMB ​ ​ ​ US$ ​ ​ ​ % ​ ​ (in thousands, except percentages) Revenues: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Packaged tours 333,357 ​ 75.5 ​ 407,462 ​ 79.3 ​ 493,481 ​ 70,567 ​ 85.4 Others 107,913 ​ 24.5 ​ 106,160 ​ 20.7 ​ 84,493 ​ 12,082 ​ 14.6 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net revenues 441,270 ​ 100.0 ​ 513,622 ​ 100.0 ​ 577,974 ​ 82,649 ​ 100.0 ​ Packaged tours. Packaged tours consist of organized tours and self-guided tours. In 2023, 2024 and 2025, revenues from sales of packaged-tours were RMB333.4 million, RMB407.5 million and RMB493.5 million (US$70.6 million), respectively. Under the organized tour arrangements with the tour operators, our role is an agent that provides tour booking services. We also operate our own brand Niu Tour business by self-operated and OEM local tour business model. Revenues from our own brand Niu Tour business were RMB100.1 million, RMB108.0 million and RMB233.8 million (US$33.4 million) for the years ended December 31, 2023, 2024 and 2025, respectively. Revenues from packaged tours were recognized when the tours depart, except for revenues for our own brand Niu Tour business in which we act as principal, which were recognized over time during the period of packaged tours. Our revenues from packaged tours, increased by 22.2% from RMB333.4 million in 2023 to RMB407.5 million in 2024, and further increased by 21.1% to RMB493.5 million (US$70.6 million) in 2025. 85 Table of Contents Others. Other revenues were RMB107.9 million, RMB106.2 million and RMB84.5 million (US$12.1 million) in 2023, 2024 and 2025, respectively. Our other revenues are primarily generated from (i) commission fees from other travel-related products and services, such as tourist attraction tickets, visa application services, accommodation reservation and transportation ticketing, with revenue recognized of RMB44.6 million, RMB47.9 million and RMB37.3million (US$5.3 million) for the years ended December 31, 2023, 2024 and 2025, respectively and (ii) fees for advertising services that we provide primarily to domestic and foreign tourism boards and bureaus, with revenue recognized of RMB27.6 million, RMB31.3 million and RMB29.3 million (US$4.2 million) for the years ended December 31, 2023, 2024 and 2025, respectively and (iii) service fees received from insurance companies, with revenue recognized of RMB8.4 million, RMB11.2 million and RMB10.5 million (US$1.5 million) for the years ended December 31, 2023, 2024 and 2025, respectively and (iv) sales of merchandises, whereas we are acting as a principal in these transactions and are responsible for fulfilling the promise to provide the specified merchandises, for which revenue is recognized on gross basis with revenue recognized of RMB6.3 million, RMB7.9 million and RMB3.6 million (US$0.5 million) for the years ended December 31, 2023, 2024 and 2025, respectively. Cost of Revenues Our cost of revenues accounted for 33.4%, 30.3% and 42.0% as percentages of our net revenues in 2023, 2024 and 2025, respectively. Revenues from packaged tours are mainly recognized on net basis (except for our own brand Niu Tour business in which we act as a principal, for which revenues are recognized on gross basis). Accordingly, the amounts we pay to travel suppliers for packaged tours are mainly recorded as a reduction to revenues, rather than cost of revenues. Our cost of revenues mainly consists of amounts paid to tour operators or suppliers in connection with our own brand Niu Tour business in which we act as a principal, for which revenues are recognized on gross basis, salaries and other compensation-related expenses related to our tour advisors, customer services representatives, other personnel related to tour transactions and other expenses directly attributable to our principal operations, primarily including payment processing fees, telecommunication expenses, rental expenses, depreciation expenses, cost of merchandises and other service fees for financial service. Operating Expenses Our operating expenses were RMB395.6 million, RMB294.8 million and RMB323.7 million (US$46.3 million) in 2023, 2024 and 2025, respectively. The following table sets forth the components of our operating expenses in absolute amounts and as percentages of our net revenues for the periods presented: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Year Ended December 31, ​ ​ 2023 ​ 2024 ​ 2025 ​ ​ ​ ​ RMB ​ ​ ​ % ​ ​ ​ RMB ​ % ​ ​ ​ RMB ​ ​ ​ US$ ​ ​ ​ % ​ ​ (in thousands, except percentages) Operating expenses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Research and product development (56,974) ​ (12.9) ​ (52,682) ​ (10.3) ​ (58,979) ​ (8,434) ​ (10.2) Sales and marketing (117,706) ​ (26.6) ​ (180,321) ​ (35.0) ​ (193,884) ​ (27,725) ​ (33.6) General and administrative (113,221) ​ (25.7) ​ (87,657) ​ (17.1) ​ (71,848) ​ (10,274) ​ (12.4) Impairment of goodwill ​ (114,661) ​ (26.0) ​ — ​ (0.0) ​ — ​ — ​ (0.0) Other operating income 7,009 ​ 1.6 ​ 25,888 ​ 5.0 ​ 964 ​ 138 ​ 0.2 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total operating expenses (395,553) ​ (89.6) ​ (294,772) ​ (57.4) ​ (323,747) ​ (46,295) ​ (56.0) ​ Research and product development expenses. Research and product development expenses primarily comprise salaries and other compensation expenses for our research and product development personnel as well as office rental, depreciation and other expenses related to our research and product development function. Research and product development expenses also include expenses that are incurred in connection with the planning and implementation phases of development and costs that are associated with the maintenance of our online platform or software for internal use. Research and product development expenses were RMB57.0 million, RMB52.7 million and RMB59.0 million (US$8.4 million) in 2023, 2024 and 2025, respectively. Sales and marketing expenses. Sales and marketing expenses primarily comprise marketing and promotional expenses, salaries and other compensation expenses for our sales and marketing personnel, office rental, depreciation and other expenses related to our sales and marketing function. Our sales and marketing expenses were RMB117.7 million, RMB180.3 million and RMB193.9 million (US$27.7 million) in 2023, 2024 and 2025, respectively. 86 Table of Contents General and administrative expenses. General and administrative expenses primarily comprise salaries and other compensation expenses for our administrative personnel, professional service fees, office rental, depreciation, bad debt and other expenses related to our administrative function. General and administrative expenses were RMB113.2 million, RMB87.7 million and RMB71.8 million (US$10.3 million) in 2023, 2024 and 2025, respectively. Impairment of goodwill. Impairment of goodwill is recognized for the amount by which the carrying amount of our net assets exceeds the fair value of reporting unit. Impairment of goodwill was RMB114.0 million, nil and nil in 2023, 2024 and 2025, respectively. Other operating income. Other operating income relates primarily to gain on disposals of subsidiaries, government subsidies and tax refunds that we receive from provincial and local governments. Government subsidies are granted from time to time at the discretion of the government authorities. These subsidies are granted for general corporate purposes and to support our ongoing operations in the region. Other operating income accounted for 1.6%, 5.0% and 0.2% of our net revenues in 2023, 2024 and 2025, respectively. Taxation Cayman Islands We are incorporated in the Cayman Islands. Under the current laws of the Cayman Islands, we are not subject to income or capital gains tax. In addition, dividend payments are not subject to withholding tax in the Cayman Islands. Hong Kong Companies registered in Hong Kong are subject to Hong Kong Profits Tax on the taxable income as reported in their respective statutory financial statements adjusted in accordance with Hong Kong tax laws. The applicable tax rate is 16.5% in Hong Kong. Under the Hong Kong tax law, our Hong Kong subsidiaries are exempted from income tax on its foreign-derived income and there are no withholding taxes in Hong Kong on remittance of dividends. PRC Our PRC subsidiaries and the consolidated affiliated entities are subject to PRC enterprise income tax on the taxable income in accordance with the PRC income tax laws. Under the Enterprise Income Tax Law effective from January 1, 2008 and most recently amended in 2018, our PRC subsidiaries and consolidated affiliated entities are subject to the statutory rate of 25%, subject to preferential tax treatments available to qualified enterprises in certain sectors of the economy. Nanjing Tuniu has qualified as an HNTE since 2010. In 2025, Nanjing Tuniu obtained a new HNTE certificate, which expires in 2028. Therefore, Nanjing Tuniu is eligible to enjoy a preferential tax rate of 15% from 2025 to 2027 to the extent it has taxable income under the Enterprise Income Tax Law, as long as it maintains the HNTE qualification and duly conducts enterprise income tax filing procedures with the tax authority. Tuniu Nanjing Information Technology qualified as an HNTE since 2017. In 2023, Tuniu Nanjing Information Technology obtained a new HNTE certificate, which expires in 2026. Therefore, Tuniu Nanjing Information Technology is eligible to enjoy a preferential tax rate of 15% from 2023 to 2025 to the extent it has taxable income under the Enterprise Income Tax Law, as long as it maintains the HNTE qualification and duly conducts enterprise income tax filing procedures with the tax authority. Pursuant to the Arrangement between Mainland China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and Prevention of Fiscal Evasion with respect to Taxes on Income, which became effective on December 8, 2006, a company incorporated in Hong Kong, such as Tuniu (HK) Limited, will be subject to withholding income tax at a rate of 5% on dividends it receives from its PRC subsidiaries, if it holds a 25% or more interest in that particular PRC subsidiary, or 10% if it holds less than a 25% interest in that PRC subsidiary. If the PRC tax authorities determine that we are a PRC resident enterprise for PRC enterprise income tax purposes under the Enterprise Income Tax Law, we will be subject to the uniform 25% enterprise income tax on our worldwide income. See “Item 3. Key Information—D. Risk Factors—Risks Related to Doing Business in China—Under the PRC Enterprise Income Tax Law, we may be classified as a PRC resident enterprise for PRC enterprise income tax purposes. Such classification would likely result in unfavorable tax consequences to us and our non-PRC shareholders and would have a material adverse effect on our results of operations and the value of your investment.” 87 Table of Contents Pursuant to the applicable PRC tax regulations, any entity conducting business in the service industry is generally required to pay value-added tax, or VAT, at the rate of 6% on the revenues generated from providing such services. Entities engaging in the travel business can deduct certain approved costs from their revenues in calculating VAT. The majority of our business is subject to VAT at a rate of 6%. We are permitted to offset input VAT by providing valid VAT invoices received from vendors against our output VAT liability. Alternatively, the taxable income of tourism business may be calculated on net basis by deducting expenses (including expenses for accommodation, catering, transportation, visa, ticket and tourism fee paid to other entities/ individuals) if valid invoices are obtained. On May 6, 2016, the State Taxation Administration issued the Administrative Measures for Value Added Tax Exemption on Cross-border Taxable Activities under the Program for the Collection of Value Added-Tax Instead of Business Tax, which was most recently amended on June 15, 2018, pursuant to which the tourism services provided overseas are exempted from VAT. Certain Corrections We announced unaudited quarterly financial results in 2025 and 2026. In the course of preparing our audited consolidated financial statements for the year ended December 31, 2025, we made the following corrections to our unaudited condensed consolidated balance sheets. Included below are the revised financial statement line items and corresponding amounts (in RMB thousands) that were affected: Unaudited First Quarter 2025 Financial Results: ●ordinary shares of 232, changed from 249; ●less: treasury stock of (133,837), changed from (342,050); ●accumulated deficit of (8,263,272), changed from (8,055,076); Unaudited Second Quarter 2025 Financial Results: ●ordinary shares of 232, changed from 249; ●less: treasury stock of (143,866), changed from (352,079); ●accumulated deficit of (8,248,746), changed from (8,040,550); Unaudited Third Quarter 2025 Financial Results: ●ordinary shares of 232, changed from 249; ●less: treasury stock of (156,743), changed from (364,956); ●accumulated deficit of (8,228,995), changed from (8,020,799); Unaudited Fourth Quarter and Fiscal Year 2025 Financial Results: ●ordinary shares of 219, changed from 249; ●less: treasury stock of (82,474), changed from (380,260); ●accumulated deficit of (8,317,009), changed from (8,019,253); The corrections did not affect total Tuniu Corporation shareholders’ equity on our consolidated balance sheets, nor did they have any impact to our consolidated statements of comprehensive (loss)/ income, including net (loss)/ income per ordinary share - basic and diluted or net (loss)/ income per ADS - basic and diluted. 88 Table of Contents Results of Operations The following table sets forth a summary of our consolidated results of operations in absolute amounts and as percentages of our net revenues for the periods indicated. The period-to-period comparisons of results of operations should not be relied upon as indicative of future performance. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Years Ended December 31, ​ ​ 2023 ​ 2024 ​ 2025 ​ ​ ​ ​ RMB ​ ​ ​ % ​ ​ ​ RMB ​ % ​ ​ ​ RMB ​ ​ ​ US$ ​ ​ ​ % ​ ​ (in thousands, except percentages) Revenues: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Packaged tours 333,357 ​ 75.5 ​ 407,462 ​ 79.3 ​ 493,481 ​ 70,567 ​ 85.4 Others 107,913 ​ 24.5 ​ 106,160 ​ 20.7 ​ 84,493 ​ 12,082 ​ 14.6 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net revenues 441,270 ​ 100.0 ​ 513,622 ​ 100.0 ​ 577,974 ​ 82,649 ​ 100.0 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cost of revenues (147,581) ​ (33.4) ​ (155,590) ​ (30.3) ​ (242,992) ​ (34,747) ​ (42.0) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross profit 293,689 ​ 66.6 ​ 358,032 ​ 69.7 ​ 334,982 ​ 47,902 ​ 58.0 Operating expenses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Research and product development (56,974) ​ (12.9) ​ (52,682) ​ (10.3) ​ (58,979) ​ (8,434) ​ (10.2) Sales and marketing (117,706) ​ (26.7) ​ (180,321) ​ (35.1) ​ (193,884) ​ (27,725) ​ (33.5) General and administrative (113,221) ​ (25.7) ​ (87,657) ​ (17.1) ​ (71,848) ​ (10,274) ​ (12.4) Impairment of goodwill ​ (114,661) ​ (26.0) ​ — ​ (0.0) ​ — ​ — ​ (0.0) Other operating income 7,009 ​ 1.6 ​ 25,888 ​ 5.0 ​ 964 ​ 138 ​ 0.2 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loss/(income) from operations (101,864) ​ (23.1) ​ 63,260 ​ 12.3 ​ 11,235 ​ 1,607 ​ 1.9 Other income/(expenses): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest and investment income, net 5,689 ​ 1.3 ​ 19,866 ​ 3.9 ​ 25,769 ​ 3,685 ​ 4.5 Interest expense (3,525) ​ (0.8) ​ (3,320) ​ (0.6) ​ (2,022) ​ (289) ​ (0.3) Foreign exchange gains/(losses), net (6,483) ​ (1.5) ​ (6,837) ​ (1.3) ​ (3,827) ​ (547) ​ (0.7) Other income, net 7,107 ​ 1.6 ​ 10,081 ​ 2.0 ​ (652) ​ (93) ​ (0.1) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loss/(income) before income tax expense (99,076) ​ (22.5) ​ 83,050 ​ 16.2 ​ 30,503 ​ 4,363 ​ 5.3 Income tax expense (1,441) ​ (0.3) ​ (837) ​ (0.2) ​ (1,425) ​ (204) ​ (0.2) Equity in (loss)/income of affiliates (580) ​ (0.1) ​ 1,486 ​ 0.3 ​ 579 ​ 83 ​ 0.1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net (loss)/income (101,097) ​ (22.9) ​ 83,699 ​ 16.3 ​ 29,657 ​ 4,242 ​ 5.1 ​ Year Ended December 31, 2025 Compared to Year Ended December 31, 2024 Net Revenues. Net revenues were RMB513.6 million and RMB578.0 million (US$82.6 million) in 2024 and 2025, respectively. ● Revenues from packaged tours. Revenues from packaged tours increased by 21.1% from RMB407.5 million in 2024 to RMB493.5 million (US$70.6 million) in 2025, primarily due to the growth of both organized tours and self-guided tours. ● Other revenues. Other revenues decreased by 20.4% from RMB106.2 million in 2024 to RMB84.5 million (US$12.1 million) in 2025, primarily due to the decrease in the commission fees received from other travel-related products. Cost of Revenues. Our cost of revenues increased by 56.2% from RMB155.6 million in 2024 to RMB243.0 million (US$34.7 million) in 2025. As a percentage of net revenues, cost of revenues was 42.0% in 2025 compared to 30.3% in 2024. Operating Expenses. Operating expenses increased by 9.8% from RMB294.8 million in 2024 to RMB323.7 million (US$46.3 million) in 2025. 89 Table of Contents ● Research and product development. Research and product development expenses increased by 12.0% from 52.7 million in 2024 to RMB59.0 million (US$8.4 million) in 2025, primarily due to the increase in research and product development personnel related expenses. ● Sales and marketing. Sales and marketing expenses increased by 7.5% from RMB180.3 million in 2024 to RMB193.9 million (US$27.7 million) in 2025, primarily due to the increase in promotion expenses. ● General and administrative. General and administrative expenses decreased by 18.0% from RMB87.7 million in 2024 to RMB71.8 million (US$10.3 million) in 2025, primarily due to the decrease in general and administrative personnel related expenses and impairment of property and equipment, net. ● Other operating income. Other operating income decreased by 96.3% from RMB25.6 million in 2024 to RMB1.0 million (US$0.1 million) in 2025, primarily due to the decrease in gain on disposals of subsidiaries. Interest and investment income, net. Interest and investment income, net increased by 30.7% from RMB19.9 million in 2024 to RMB25.8 million (US$3.7 million) in 2025, primarily due to the decrease in impairment of long-term investments. Net income. As a result of the foregoing, there is a net income of RMB29.7 million (US$4.2 million) in 2025, compared to a net income of RMB83.7 million in 2024. Year Ended December 31, 2024 Compared to Year Ended December 31, 2023 Net Revenues. Net revenues were RMB441.3 million and RMB513.6 million in 2023 and 2024, respectively. ● Revenues from packaged tours. Revenues from packaged tours increased by 22.2% from RMB333.4 million in 2023 to RMB407.5 million in 2024, primarily due to the growth of organized tours as a result of increasing travel demands after the COVID-19 pandemic. ● Other revenues. Other revenues decreased by 1.6% from RMB107.9 million in 2023 to RMB106.2 million in 2024, primarily due to the decrease in revenues generated from our financial services. Cost of Revenues. Our cost of revenues increased by 5.4% from RMB147.6 million in 2023 to RMB155.6 million in 2024. As a percentage of net revenues, cost of revenues was 33.4% in 2023 compared to 30.3% in 2024. Operating Expenses. Operating expenses decreased by 25.5% from RMB395.6 million in 2023 to RMB294.8 million in 2024, primarily due to the decrease in gain on disposals of subsidiaries. ● Research and product development. Research and product development expenses decreased by 7.5% from 57.0 million in 2023 to RMB52.7 million in 2024, primarily due to the decrease in research and product development personnel related expenses. ● Sales and marketing. Sales and marketing expenses increased by 53.2% from RMB117.7 million in 2023 to RMB180.3 million in 2024, primarily due to the increase in promotion expenses. ● General and administrative. General and administrative expenses decreased by 22.6% from RMB113.2 million in 2023 to RMB87.7 million in 2024, primarily due to the impairment of property and equipment under the net method of recording in 2024. ● Other operating income. Other operating income increased from RMB7.0 million in 2023 to RMB25.6 million in 2024, primarily due to the decrease in gain on disposals of subsidiaries. Net (loss)/income. As a result of the foregoing, there is a net income of RMB83.7 million in 2024, compared to a loss of RMB101.1 million in 2023. 90 Table of Contents Foreign Currency For the year ended December 31, 2025, we recorded RMB6.0 million (US$0.9 million) of net foreign currency translation loss in accumulated other comprehensive income as a component of shareholders’ equity. To date, we have not entered into any material hedging transactions in an effort to reduce our exposure to foreign currency exchange risk. See also “Item 3. Key Information—D. Risk Factors— Risks Related to Doing Business in China—Fluctuations in exchange rates could have a material adverse effect on our results of operations and the value of your investment” and “Item 11. Quantitative and Qualitative Disclosures about Market Risk—Foreign Exchange Risk.” Recent Accounting Pronouncements See Note 2(ah) to our consolidated financial statements included elsewhere in this annual report for discussion on recent issued accounting pronouncements. B.Liquidity and Capital Resources Our primary sources of liquidity have been proceeds from operating activities, borrowings from banks, private issuances of ordinary and preferred shares, and our initial public offering. Our principal uses of cash were for operating activities, primarily including payments made to travel suppliers, marketing and brand promotion expenses, salaries and other compensation expenses as well as office rental and professional service fees. Generally, our customers pay us upon contract confirmation, which is usually more than one month before the departure dates, and we pay the travel suppliers at a later date. The timing difference between when the cash is collected from our customers and when payments are made to travel suppliers increases our operating cash inflow and provides us with a source of liquidity to fund our settlement of outstanding accounts payable to travel suppliers and our prepayment to travel suppliers to secure packaged tours during peak seasons. Our advances from customers decreased from RMB270.2 million as of December 31, 2023 to RMB247.2 million as of December 31, 2024 and further decreased to RMB184.5 million (US$26.4 million) as of December 31, 2025, primarily due to the change in our operation mode. Accounts and notes payable decreased from RMB317.1 million as of December 31, 2023 to RMB290.1 million as of December 31, 2024 and further decreased to RMB219.4 million (US$31.4 million) as of December 31, 2025, primarily due to the acceleration of settlement with travel suppliers. Furthermore, prepayments and other current assets, net, increased from RMB234.2 million as of December 31, 2023 to RMB235.4 million as of December 31, 2024 and decreased to RMB157.6 million (US$22.5 million) as of December 31, 2025. Moreover, our sales and marketing expenses increased from RMB117.7 million in 2023 to RMB180.3 million in 2023 and further increased to RMB193.9 million (US$27.7 million) in 2025, primarily due to the increases in promotion expenses and marketing personnel related expenses. As a result, our net cash provided by operating activities was RMB232.8 million and RMB113.2 million in 2023 and 2024, respectively, and our net cash used in operating activities was RMB109.1 million (US$15.6 million) in 2025. Our cash and cash equivalents consist of cash on hand and cash in bank, including demand bank deposits. Our short-term investments comprise financial products issued by banks or other financial institutions. As of December 31, 2024 and 2025, we had RMB1,267.2 million and RMB1,139.1 million (US$162.9 million) in cash and cash equivalents, restricted cash, short-term investments and long-term deposits, respectively. As of December 31, 2024 and 2025, we obtained cash from banks by discounting of bank acceptance notes with the amount of RMB180.0 million and RMB100.0 million (US$14.3 million), respectively, which are repayable within one year with interest rate ranging from 0.9% to 1.25%. The issuance of notes payable is pledged by our company’s bank deposits of RMB180.0 million and RMB100.0 million (US$14.3 million) as of December 31, 2024 and 2025, which were recorded in short-term investments. 91 Table of Contents We had net loss of RMB101.1 million and net income of RMB83.7 million and RMB29.7 million (US$4.2 million), for the years ended December 31, 2023, 2024 and 2025, respectively. Our net cash provided by operating activities was RMB232.8 million and RMB96.3 million for the year ended December 31, 2023 and 2024, respectively, and our net cash used in operating activities was RMB109.1 million (US$15.6 million) for the year ended December 31, 2025. As of December 31, 2025, our accumulated deficit was RMB8,317.0 million (US$1,189.3 million) and we had cash and cash equivalents and short-term investments of RMB1,060.9 million (US$151.7 million) and working capital of RMB660.5 million (US$94.5 million). Based on our liquidity assessment, which has considered our operations at the current business scale, the available funding from maturity of our short-term and long-term investments and the available cash and cash equivalents, we will be able to meet our working capital requirements and capital expenditures in the ordinary course of business for the next twelve months subsequent to the filing of this annual report. The following table sets forth a summary of our cash flows for the periods presented: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the Years Ended December 31, ​ ​ 2023 ​ 2024 ​ 2025 ​ ​ ​ ​ RMB ​ ​ ​ RMB ​ RMB ​ ​ ​ US$ ​ ​ ​ ​ (in thousands, except percentages) Net cash provided by/ (used in) operating activities 232,838 ​ 96,281 ​ (109,068) ​ (15,598) Net cash provided by investing activities 40,930 ​ 26,661 ​ 4,876 ​ 698 Net cash used in financing activities (22,579) ​ (73,979) ​ (160,087) ​ (22,891) Effect of exchange rate changes on cash, cash equivalents and restricted cash (4,183) ​ (2,789) ​ (9,336) ​ (1,335) Net increase/ (decrease) in cash, cash equivalents and restricted cash 247,004 ​ 46,174 ​ (273,615) ​ (39,126) Cash, cash equivalents and restricted cash at the beginning of year 197,887 ​ 444,891 ​ 491,065 ​ 70,221 Cash, cash equivalents and restricted cash at the end of year 444,891 ​ 491,065 ​ 217,450 ​ 31,095 ​ Operating Activities Our net cash used in operating activities was RMB109.1 million (US$15.6 million) in 2025, primarily attributable to cash inflows from sales of our travel products and services of RMB3,827.2 million (US$547.3 million) and cash inflows from other operating activities such as deposits, interest income and government subsidies of RMB52.9 million (US$7.6 million), that were offset by cash outflows due to payments to travel suppliers of RMB3,643.7 million (US$521.0 million), payments relating to other operating activities, which include payments to employees and for employees’ benefits of RMB184.5 million (US$26.4 million), payments for marketing and promotional activities, office rental and utilities and professional services of RMB159.6 million (US$22.8 million) and payments of taxes and levies of RMB1.4 million (US$0.2 million). Our net cash provided by operating activities was RMB96.3 million in 2024, primarily attributable to cash inflows from sales of our travel products and services of RMB3,721.7 million and cash inflows from other operating activities such as deposits, interest income and government subsidies of RMB54.2 million, that were offset by cash outflows due to payments to travel suppliers of RMB3351.3 million, payments relating to other operating activities, which include payments to employees and for employees’ benefits of RMB174.3 million, payments for marketing and promotional activities, office rental and utilities and professional services of RMB138.8 million and payments of taxes and levies of RMB15.2 million. Our net cash provided by operating activities was RMB232.8 million in 2023, primarily attributable to cash inflows from sales of our travel products and services of RMB3,455.3 million and cash inflows from other operating activities such as deposits, interest income and government subsidies of RMB50.8 million, that were offset by cash outflows due to payments to travel suppliers of RMB2,982.1 million, payments relating to other operating activities, which include payments to employees and for employees’ benefits of RMB164.2 million, payments for marketing and promotional activities, office rental and utilities and professional services of RMB63.3 million and payments of taxes and levies of RMB19.2 million. 92 Table of Contents Investing Activities Our net cash provided by investing activities was RMB4.9 million (US$0.7 million) in 2025, primarily attributable to the purchase of short-term and long-term investments of RMB700.4 million (US$100.2 million) and the purchase of property and equipment and intangible assets of RMB7.1 million (US$1.0 million), which were offset by the decrease in loan receivable of RMB21.1 million (US$3.0 million), the proceeds from maturity of short-term and long-term investments of RMB580.2 million (US$83.0 million), cash received from disposals of subsidiaries of RMB1.0 million (US$0.1 million), cash received from disposals of equity investments by dividend of RMB24.1 million (US$3.5 million) and cash received from disposals of land use right and construction in progress of RMB85.9 million (US$12.3 million). Our net cash provided by investing activities was RMB26.6 million in 2024, primarily attributable to the purchase of short-term and long-term investments of RMB636.5 million, the decrease in cash from disposals of subsidiaries of RMB7.1 million and the purchase of property and equipment and intangible assets of RMB11.8 million, which were offset by the decrease in loan receivable of RMB5.4 million, the proceeds from maturity of short-term and long-term investments of RMB668.1 million and cash received from disposals of equity investments by dividend of RMB8.6 million. Our net cash provided by investing activities was RMB40.9 million in 2023, primarily attributable to the purchase of short-term and long-term investments of RMB606.9 million and the purchase of property and equipment and intangible assets of RMB9.8 million and cash paid for long-term investments of RMB1.1 million, which were offset by the decrease in loan receivable of RMB75.8 million, the proceeds from maturity of short-term and long-term investments of RMB579.4 million, cash received from disposals of subsidiaries of RMB3.2 million and cash received from disposals of equity investments by dividend of RMB0.2 million. Financing Activities Our net cash used in financing activities in 2025 was RMB160.1 million (US$22.9 million), primarily attributable to RMB360.0 million (US$51.5 million) for repayments of short-term and long-term borrowings, RMB51.2 million (US$7.3 million) for payment of share repurchase and RMB29.8 million (US$4.3 million) for cash dividend, which were partially offset by RMB280.0 million (US$40.0 million) of proceeds from short-term and long-term borrowings and cash contribution from noncontrolling interests of RMB0.9 million (US$0.1 million). Our net cash used in financing activities in 2024 was RMB74.0 million, primarily attributable to RMB361.0 million for repayments of short-term and long-term borrowings and RMB27.2 million for repurchase of redeemable noncontrolling interests and RMB44.9 million for payment of share repurchase, which were partially offset by RMB359.0 million of proceeds from short-term and long-term borrowings. Our net cash used in financing activities in 2023 was RMB22.6 million, primarily attributable to RMB400.8 million for repayments of short-term and long-term borrowings, which were partially offset by RMB378.0 million of proceeds from short-term and long-term borrowings. Material Cash requirements Our material cash requirements as of December 31, 2025 mainly include debt obligations, operating lease obligations and capital expenditure commitments, as below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Payment Due by Period ​ ​ ​ ​ Less Than ​ ​ ​ ​ ​ More Than ​ ​ ​ ​ Total ​ ​ ​ 1 Year ​ ​ ​ 1-3 Years ​ ​ ​ 3-5 Years ​ ​ ​ 5 Years ​ ​ ​ ​ (In RMB thousands) Operating Lease Obligations 5,612 ​ 2,207 ​ 2,110 ​ 228 ​ 1,067 Bank Borrowings 35 ​ 35 ​ — ​ — ​ — Capital Commitments 1,040 ​ 1,040 ​ — ​ — ​ — ​ Our operating lease obligations primarily represent our obligations for the leased premises of our headquarter. Our short-term bank borrowings represent borrowings from banks with maturity of less than one year. Our capital commitments are commitments in relation to the purchase of property and equipment including leasehold improvements. 93 Table of Contents We intend to fund our existing and future material cash requirements for at least the next twelve months after the issuance of this report using our existing cash balance, and these commitments have been considered in our assessment that we will be able to meet our obligations as they become due over that period. We will continue to make cash commitments, including capital expenditures, to support the growth of our business. We have not entered into any financial guarantees or other commitments to guarantee the payment obligations of any third parties. We have not entered into any off-balance sheet derivative instruments. Furthermore, we do not have any retained or contingent interest in assets transferred to an unconsolidated entity that serves as credit, liquidity or market risk support to such entity. We do not have any variable interest in any unconsolidated entity that provides financing, liquidity, market risk or credit support to us or engages in leasing, hedging or research and development services with us. Other than as shown above, we did not have any significant capital and other commitments, long-term obligations or guarantees as of December 31, 2025. As of December 31, 2025, for the purpose of indebtedness, save as disclosed in our consolidated financial statements included elsewhere in this annual report, we did not have significant contingent liabilities. Holding Company Structure We are a holding company with no operations of our own. We conduct our business in China through our PRC subsidiaries and the consolidated affiliated entities. As a result, our ability to pay dividends to our shareholders depends upon dividends paid by our PRC subsidiaries. If our PRC subsidiaries or any newly formed PRC subsidiaries incur debt on their own behalf in the future, the instruments governing their debt may restrict their ability to pay dividends to us. In addition, our PRC subsidiaries are permitted to pay dividends to us only out of their retained earnings, if any, as determined in accordance with PRC accounting standards and regulations. Under PRC law, our PRC subsidiaries are required to set aside at least 10% of their respective accumulate profits each year, if any, to fund certain statutory reserve funds until such reserve funds reach 50% of their respective registered capital. In addition, our PRC subsidiaries may allocate a portion of their respective after-tax profits based on PRC accounting standards to employee welfare and bonus funds at their discretion, and our consolidated affiliated entity may allocate a portion of its after-tax profits based on PRC accounting standards to a surplus fund at its discretion. The statutory reserve funds and the discretionary funds are not distributable as cash dividends. As our PRC subsidiaries and consolidated affiliated entity have incurred losses, they have not started to contribute to the statutory reserve funds and discretionary funds. Remittance of dividends by a wholly foreign-owned company out of mainland China is subject to examination by the banks designated by SAFE. Our PRC subsidiaries have never paid dividends and will not be able to pay dividends until they generate accumulated profits and meet the requirements for statutory reserve funds. C.Research and Development We have built our technology infrastructure with high levels of performance, reliability, scalability and security. We rely on internally developed proprietary technologies and licensed technologies to manage and improve our website, mobile platform and management systems. We have a team of engineers dedicated to the research and development of website operations, mobile platform, search engine, data analytics and supply chain management system. Research and product development expenses primarily comprise salaries and other compensation expenses for our research and product development personnel as well as office rental, depreciation and other expenses related to our research and product development function. Research and product development expenses also include expenses that are incurred in connection with the planning and implementation phases of development and costs that are associated with the maintenance of our online platform or software for internal use. Our research and product development expenses decreased from RMB57.0 million in 2023 to RMB52.7 million in 2024, but increased to RMB59.0 million (US$8.4 million) million in 2025, primarily due to the fluctuations in research and development personnel related expenses. D.Trend Information Other than as disclosed elsewhere in this annual report, we are not aware of any trends, uncertainties, demands, commitments or events for the period since January 1, 2026 that are reasonably likely to have a material and adverse effect on our net revenues, income, profitability, liquidity or capital resources, or that would cause the disclosed financial information to be not necessarily indicative of future results of operations or financial conditions. 94 Table of Contents E.Critical Accounting Estimates We prepare our consolidated financial statements in accordance with U.S. GAAP, which requires our management to make estimates that affect the reported amounts of assets, liabilities and disclosures of contingent assets and liabilities at the balance sheet dates, as well as the reported amounts of revenues and expenses during the reporting periods. To the extent that there are material differences between these estimates and actual results, our financial condition or results of operations would be affected. We base our estimates on our own historical experience and other assumptions that we believe are reasonable after taking account of our circumstances and expectations for the future based on available information. We evaluate these estimates on an ongoing basis. We consider an accounting estimate to be critical if: (i) the accounting estimate requires us to make assumptions about matters that were highly uncertain at the time the accounting estimate was made, and (ii) changes in the estimate that are reasonably likely to occur from period to period or use of different estimates that we reasonably could have used in the current period, would have a material impact on our financial condition or results of operations. There are other items within our financial statements that require estimation but are not deemed critical, as defined above. Changes in estimates used in these and other items could have a material impact on our financial statements. For a detailed discussion of our principal accounting policies and related judgments, see “Notes to Consolidated Financial Statements – Note 2 Principal Accounting Policies”. Long-term investments Long-term investments include equity investments and other long-term investments, which involve significant accounting estimates. Equity investments We elect a measurement alternative for equity investments that do not have readily determinable fair values and where we do not have the ability to exercise significant influence over operating and financial policies of the entity. Under the measurement alternative, we measured these investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. An impairment loss is recognized in the consolidated statements of comprehensive (loss)/income equal to the excess of the investment’s cost over its fair value when the impairment is deemed other-than-temporary. For the year ended December 31, 2025, we recognized an impairment loss of RMB13.6 million (US$1.9 million) on certain equity investments based on our assessment of current economic and market conditions with the considerations of the operating performance of the investees. The key parameters used in the assessment of certain investment are trailing P/S and discount for lack of marketability. When our assumptions related to the estimates of the fair value of the investments decreased/increased by 5% while holding all other estimates constant, there would be no significant impact to our consolidated results of operations. Impairment of non-financial assets We evaluate our non-financial assets, including property and equipment, intangible assets, land use rights, prepayments for property and equipment and operating lease rights-of-use assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. The asset group is the unit of account for a non-financial asset or assets to be held and used, which represents the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. When these events occur, we measure impairment by comparing the carrying amount of the asset group to future undiscounted net cash flows expected to result from the use of the assets and their eventual disposition. If the sum of the expected undiscounted cash flows is less than the carrying amount of the assets, we recognize an impairment loss equal to the difference between the carrying amount and fair value of these assets. 95 Table of Contents Our non-financial assets including property and equipment, net of RMB18.9 million, intangible assets, net of RMB19.6 million, prepayments for property and equipment, net of RMB11.9 million and operating lease right-of-use assets, net of RMB6.9 million are considered one asset group which represents the lowest level to independently generate identifiable cash flows. The low market capitalization as of December 31, 2025 was considered as an impairment indicator for this asset group and we further performed impairment assessment by comparing the undiscounted cash flow expected to be generated from the usage and eventual disposal of the asset group and the carrying value of the asset group, using the key assumptions including revenue growth rate, gross margin, operating expenses and working capital requirements. Based on our assessment, the undiscounted cash flow of the asset group was higher than the carrying value of the asset group and hence no impairment of non-financial assets was recognized during the year ended December 31, 2025. When one of our assumptions relating to these factors increases or decreases by 5% while holding all other assumptions constant, the result of the non-financial assets impairment assessment would not be impacted and the fair value of the asset group would still be above its carrying value. ​