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Tax Disclosure

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Report of Organizational Actions Affecting Basis of Securities

Ryerson Holding Corporation – IRS Form 8937 Disclosure

Ryerson Holding Corporation has posted IRS Form 8937 (Report of Organizational Actions Affecting Basis of Securities) in connection with its merger with Olympic Steel, Inc., which was completed on February 13, 2026.
The merger qualified as a tax free reorganization under Section 368(a) of the Internal Revenue Code. The Form 8937 provides information regarding the U.S. federal income tax treatment of the transaction, including tax basis and holding period considerations for Ryerson common stock received by former Olympic Steel shareholders.

The information is provided for general informational purposes only and does not constitute tax advice. Shareholders are encouraged to consult their own tax advisors regarding the tax consequences of the merger.