Vale S.A. Updates Estimates for Vale Base Metals Ltd. Contribution to Consolidated EBITDA

Vale S.A. announced an update to the indicative guidance regarding the long-term contribution of its subsidiary, Vale Base Metals Ltd. (VBM), to the Company’s consolidated EBITDA. The updated estimate is approximately 28%, based on the average prices of copper, nickel, and gold in 2026, as projected by sell-side analysts in May 2026. Other estimates previously disclosed by the Company remain unchanged. Vale will refile its Reference Form to include this update in compliance with CVM Resolution No. 80/2022. The Company emphasizes that this information consists of estimates and forward-looking statements, and actual results may differ due to various risks and market conditions. This filing is a Report of Foreign Private Issuer on Form 6-K for the month of June 2026.