SEC Form 6-K filed by VALE S.A.

United States

Securities and Exchange Commission

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

of the

Securities Exchange Act of 1934

For the month of

March 2025

Vale S.A.

Praia de Botafogo nº 186, 18º andar, Botafogo
22250-145 Rio de Janeiro, RJ, Brazil

(Address of principal executive office)

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

(Check One) Form 20-F x Form 40-F ¨

Press Release

Vale announces expiration and final results of cash tender offers for notes due 2034, 2039 and 2036

Rio de Janeiro, March 24, 2025 – Vale Overseas Limited (“Vale Overseas” or the “Offeror”), a wholly owned subsidiary of Vale S.A. (“Vale”), announces the expiration and final results of the previously announced offers to purchase for cash (the “Offers”) up to a maximum aggregate principal amount of Notes (as defined below) validly tendered in the Offers not to exceed US$450,000,000, excluding any premium and any accrued and unpaid interest (the “Maximum Principal Amount”), of the outstanding notes issued by Vale Overseas of the series of notes as set forth in the table below (the “Notes”). The Offers were made upon the terms and subject to the conditions set forth in the offer to purchase dated as of February 24, 2025 (the “Offer to Purchase”).

As previously announced, on March 12, 2025 (the “Early Settlement Date”), Vale Overseas purchased US$323,965,000 aggregate principal amount of Notes, which had been validly tendered and not validly withdrawn on or prior to 5:00 p.m., New York City time, on March 7, 2025 (the “Early Tender Date”).

The Offers expired at 5:00 p.m., New York City time, on March 24, 2025 (the “Expiration Date”) and no tenders submitted after the Expiration Date are valid.

The table below identifies the principal amount of each series of Notes validly tendered and not validly withdrawn (i) on or prior to the Early Tender Date and (ii) after the Early Tender Date and on or prior to the Expiration Date, and accepted for purchase.

⁽¹⁾ As of February 24, 2025, the date the Offers were launched.

Because the aggregate principal amount of Notes validly tendered in the Offers and not validly withdrawn after the Early Settlement Date and on or prior to the Expiration Date do not exceed the Maximum Principal Amount, the Offeror has accepted for purchase all of the Notes validly tendered and not validly withdrawn on or prior to the Expiration Date.

As previously announced, the applicable Total Consideration (as defined in the Offer to Purchase) payable per US$1,000 principal amount of Notes tendered and accepted for purchase has been determined by the Dealer Managers based on the applicable fixed spread for each series of Notes plus the applicable yield-to-maturity of the Reference U.S. Treasury Security for that series of Notes as of 11:00 a.m., New York City time, on March 7, 2025. Holders who validly tendered their Notes after the Early Tender Date, but on or prior to the Expiration Date, will be eligible to receive the Tender Consideration (as defined in the Offer to Purchase) and accrued and unpaid interest. The applicable “Tender Consideration” is equal to the applicable Total Consideration minus the applicable Early Tender Payment. The Tender Consideration is expected to be paid on the Final Settlement Date, which is expected to occur on March 26, 2025.

Vale has retained BMO Capital Markets Corp., BofA Securities, Inc., Credit Agricole Securities (USA) Inc., HSBC Securities (USA) Inc. and J.P. Morgan Securities LLC to serve as dealer managers (“Dealer Managers”) and D.F. King & Co., Inc. to serve as tender and information agent for the Offers (“D.F. King”). The Offer to Purchase and any related supplements are available at the D.F. King website at www.dfking.com/vale. The full details of the Offers, including complete instructions on how to tender Notes, are included in the Offer to Purchase. Holders of Notes are strongly encouraged to carefully read the Offer to Purchase, including materials incorporated by reference therein, because they will contain important information. Requests for the Offer to Purchase and any related supplements may also be directed to D.F. King by telephone at +1 (212) 269-5550 or +1 (800) 714-3310 (US toll free) or in writing at [email protected]. Questions about the Offers may be directed to BMO Capital Markets Corp. by telephone at +1 (212) 702-1840 (collect) or +1 (833) 418-0762 (US toll free), BofA Securities, Inc. by telephone at +1 (646) 855-8988 (collect) or +1 (888) 292-0070 (US toll free), Credit Agricole Securities (USA) Inc. by telephone at +1 (212) 261-7802 (collect) or +1 (866) 807-6030 (US toll free), HSBC Securities (USA) Inc. by telephone at +1 (212) 525-5552 (collect) or +1 (888) HSBC-4LM (US toll free), or J.P. Morgan Securities LLC by telephone at +1 (212) 834-3554 (collect) or +1 (866) 834-4666 (US toll free).

This news release is for informational purposes only and is neither an offer to purchase nor a solicitation of an offer to sell any securities. The Offers are being made only by, and pursuant to the terms of, the Offer to Purchase. The Offers are not being made in any jurisdiction in which the making or acceptance thereof would not be in compliance with the securities, blue sky or other laws of such jurisdiction. In any jurisdiction where the laws require the Offers to be made by a licensed broker or dealer, the Offers will be made by the Dealer Managers on behalf of the Offeror. None of the Offeror, D.F. King, the Dealer Managers or the trustee with respect to the Notes, nor any of their affiliates, makes any recommendation as to whether holders should tender or refrain from tendering all or any portion of their Notes in response to the Offers. None of the Offeror, D.F. King, the Dealer Managers or the trustee with respect to the Notes, nor any of their affiliates, has authorized any person to give any information or to make any representation in connection with the Offers other than the information and representations contained in the Offer to Purchase.

Marcelo Feriozzi Bacci

Executive Vice President, Finance and Investor Relations

For further information, please contact:

[email protected]

Thiago Lofiego: [email protected]

Mariana Rocha: [email protected]

Luciana Oliveti: [email protected]

Pedro Terra: [email protected]

Patricia Tinoco: [email protected]

This press release may include statements that present Vale’s expectations about future events or results. All statements, when based upon expectations about the future, involve various risks and uncertainties. Vale cannot guarantee that such statements will prove correct. These risks and uncertainties include factors related to the following: (a) the countries where we operate, especially Brazil and Canada; (b) the global economy; (c) the capital markets; (d) the mining and metals prices and their dependence on global industrial production, which is cyclical by nature; and (e) global competition in the markets in which Vale operates. To obtain further information on factors that may lead to results different from those forecast by Vale, please consult the reports Vale files with the U.S. Securities and Exchange Commission (SEC), the Brazilian Comissão de Valores Mobiliários (CVM) and in particular the factors discussed under “Forward-Looking Statements” and “Risk Factors” in Vale’s annual report on Form 20-F.

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.