Ryerson Holding Corp

B USINESS. Ryerson Holding Corporation ( Ryerson Holding ), a Delaware corporation, is the parent company of Joseph T. Ryerson & Son, Inc. ( JT Ryerson ), a Delaware corporation. As of December 31, 2025, affiliates of Platinum Equity, LLC ( Platinum ) own approximately 3,924,478 shares of our common stock, which is approximately 12.2% of our issued and outstanding common stock. We are a leading value-added processor and distributor of industrial metals with operations in the United States ("U.S.") through JT Ryerson and other U.S. subsidiaries, in Canada through our indirect wholly-owned subsidiary Ryerson Canada, Inc., a Canadian corporation ( Ryerson Canada ), and in Mexico through our indirect wholly-owned subsidiary Ryerson Metals de Mexico, S. de R.L. de C.V., a Mexican corporation ( Ryerson Mexico ). In addition to our North American operations, we conduct metal processing and distribution operations in China through an indirect wholly-owned subsidiary, Ryerson China Limited, a Chinese limited liability company ( Ryerson China ). Unless the context indicates otherwise, Ryerson Holding, JT Ryerson, Ryerson Canada, Ryerson Mexico, and Ryerson China together with their subsidiaries, are collectively referred to herein as Ryerson, we, us, our, or the Company. Our Company We are one of the largest value-add processors and distributors of industrial metals in North America measured in terms of sales. As of December 31, 2025, we have approximately 4,300 employees across 103 facilities in North America and three facilities in China.