​ Except as set forth below, there have been no material changes to the risk factors contained in Item 1A of our Form 10-K for the year ended December 28, 2025. ​ Geopolitical instability and armed conflict involving Iran could adversely affect our business, financial condition and results of operations. ​ Ongoing or future armed conflict, heightened geopolitical tensions, or military hostilities involving Iran, including the full or partial closure of the Strait of Hormuz or restricted access to the Red Sea, damage to energy production, transport facilities or infrastructure, or retaliatory actions by regional or global powers, could materially and adversely affect global economic conditions and financial markets. Such developments could disrupt international trade, energy markets, fertilizer markets, currency stability and transportation routes, leading to increased volatility in commodity prices, supply chain disruptions, inflationary pressures and reduced consumer and business confidence. ​ In addition, any conflict involving Iran could result in further regulatory constraints, sanctions compliance obligations, limitations on cross-border transactions or restrictions on access to certain markets, counterparties or financial institutions. These factors may increase our operating costs, delay or impair our ability to execute strategic initiatives, limit growth opportunities or negatively impact demand for building materials. The extent of these impacts is uncertain and may be exacerbated by the duration, geographic scope and severity of such geopolitical developments, any of which could have a material adverse effect on our business, financial condition and results of operations. ​ ​ ​ ​ ​ ​ 31 Table of Contents