HUN

• The non-binding advisory compensation proposal related to the merger was also approved, with 117,592,172 votes for, 15,456,713 against, and 661,256 abstaining.
• The Adjournment Proposal was not submitted because sufficient votes were present to approve the merger.
• Based on preliminary results, the transaction will proceed through a direct merger of Olin and Huntsman, with the combined company to be named OlinHuntsman Corporation.
• The transaction is expected to close in the first half of 2027, subject to regulatory approvals and other customary closing conditions.

5.07 Submission of Matters to a Vote of Security Holders · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits

• Huntsman voluntarily amended the joint proxy statement/prospectus to add supplemental disclosures.
• Supplemental disclosures include details on Lazard's and Citi's financial analyses, including valuation assumptions.
• Huntsman's board continues to recommend stockholders vote 'FOR' the merger proposals.
• Special meetings of Huntsman stockholders and Olin shareholders are scheduled for August 25, 2026.

8.01 Other Events

• Net loss attributable to Huntsman narrowed to $6 million from $158 million a year ago; diluted loss per share was $0.03 versus $0.92.
• Adjusted EBITDA rose to $120 million from $74 million in the prior year period.
• Free cash flow was a use of $90 million in Q2 2026, compared to a source of $55 million in Q2 2025.
• On June 16, 2026, Huntsman announced an all-stock merger of equals with Olin Corporation; stockholder vote scheduled for August 25, 2026.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• Olin Corporation and Huntsman Corporation entered into a definitive Agreement and Plan of Merger on June 15, 2026, for an all-stock merger of equals.
• The companies identified $400+ million in cost synergies and integration benefits.
• Ken Lane will serve as CEO and Peter Huntsman as non-executive Chairman of the combined company.
• A joint investor call and webcast was scheduled for June 16, 2026 at 8:00 a.m. Eastern Time.

7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits

• Huntsman Corporation and Olin Corporation entered into a Merger Agreement on June 15, 2026, for an all-stock merger of equals.
• The combined company will be named OlinHuntsman Corporation, headquartered in The Woodlands, Texas, with Kenneth Lane as CEO and Peter Huntsman as non-executive Chair.
• The transaction requires approvals from both companies' shareholders, regulatory clearances, and effectiveness of an SEC Form S-4 registration statement.
• A termination fee of $121 million may be payable under certain circumstances if the deal fails to close.

1.01 Entry into a Material Definitive Agreement · 8.01 Other Events · 9.01 Financial Statements and Exhibits

• All nine director nominees were re-elected to serve until the 2027 Annual Meeting, each receiving over 109 million votes for.
• The advisory vote on named executive officer compensation was approved with 114,649,699 votes for and 10,829,747 against.
• The appointment of Deloitte & Touche LLP as independent auditor for fiscal year 2026 was ratified with 148,926,255 votes for.
• A stockholder proposal requesting an independent board chair policy was not approved, with 92,855,029 votes against.
• American Election Services, LLC served as inspector of elections and certified the final vote tabulation on April 29, 2026.

5.07 Submission of Matters to a Vote of Security Holders

• Net loss attributable to Huntsman was $53 million, compared to a net loss of $5 million in Q1 2025.
• Adjusted EBITDA was $73 million, roughly flat versus $72 million in the prior year period.
• Free cash flow was a use of $91 million, improved from a use of $107 million in Q1 2025.
• Management expects a step up in profitability in Q2 2026, citing volume growth and margin expansion from pricing initiatives.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• Net loss attributable to Huntsman was $96 million in Q4 2025, compared to a net loss of $141 million in Q4 2024.
• Adjusted EBITDA for Q4 2025 was $35 million, down from $71 million in the prior year period.
• Full year 2025 revenues were $5,683 million, down from $6,036 million in 2024; net loss attributable to Huntsman was $284 million versus $189 million in 2024.
• As of December 31, 2025, Huntsman had approximately $1.3 billion of combined cash and unused borrowing capacity.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits