United States Steel Corporation (U.S. Steel) has filed materials with the SEC, including a definitive proxy statement on March 12, 2024, regarding a proposed transaction with Nippon Steel Corporation (NSC). The materials were disseminated to U.S. Steel stockholders starting March 12, 2024, and additional documents may be filed concerning the transaction. The transaction will require stockholder approval, and stockholders are urged to read all relevant documents filed with the SEC. These documents contain important information about U.S. Steel, NSC, and the proposed transaction. The proxy statement and other filings can be obtained from the SEC's website or directly from U.S. Steel. The communication also includes forward-looking statements subject to risks and uncertainties, and stockholders are cautioned not to place undue reliance on them. The proposed transaction is subject to various conditions and approvals, and there is no certainty it will be completed as planned.

United States Steel Corporation (U.S. Steel) has filed materials with the SEC, including a definitive proxy statement on March 12, 2024, regarding a proposed transaction with Nippon Steel Corporation (NSC). The materials were disseminated to U.S. Steel stockholders starting March 12, 2024, and additional documents may be filed concerning the transaction. The transaction will require stockholder approval, and stockholders are urged to read all relevant documents filed with the SEC. These documents contain important information about U.S. Steel, NSC, and the proposed transaction. The proxy statement and other filings can be obtained from the SEC's website or directly from U.S. Steel. The communication also includes forward-looking statements subject to risks and uncertainties, and stockholders are cautioned not to place undue reliance on them. The proposed transaction is subject to various conditions and approvals, and there is no certainty it will be completed as planned.