Ryerson Holding Corp

The management of Ryerson Holding Corporation (“the Company”) is respon sible for establishing and maintaining adequate internal control over financial reporting. The Company’s internal control system was designed to provide reasonable assurance to the Company’s management and Board of Directors regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements under all potential conditions. Therefore, effective internal control over financial reporting provides only reasonable, and not absolute, assurance with respect to the preparation and presentation of financial statements.

The Company’s management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). Based on its assessment under that framework and the criteria established therein, the Company’s management concluded that the Company’s internal control over financial reporting was effective as of December 31, 2024.

Ernst & Young LLP, an independent registered public accounting firm, has audited the Company’s internal control over financial reporting as of December 31, 2024, as stated in their report, which is included herein.