Vale S.A. Director Andre Viana Madeira Power of Attorney Filing

This SEC Form 3 filing for Vale S.A. (VALE) includes a Power of Attorney document executed by director Andre Viana Madeira on February 26, 2026. The filing appoints Luciana Oliveti Chiminazzo and Thiago Kiill Lofiego as attorneys-in-fact to prepare and submit SEC reports on Madeira's behalf, specifically Forms 3, 4, and 5 required under Section 16 of the Exchange Act. The power of attorney authorizes these representatives to file reports regarding Madeira's holdings and transactions in Vale securities. The document also designates them as EDGAR account administrators to manage Madeira's filing account. The filing shows Madeira owns 61 common shares of Vale S.A. directly. The power of attorney remains in effect until Madeira is no longer required to file Section 16 reports or until revoked in writing.