Vale updates on Forquilha III Dam - Form 6-K

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

April 2024

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 ¨

Vale updates on Forquilha III Dam

Rio de Janeiro, April 12, 2024 - Following the press releases dated April 5 and 10, 2024, Vale S.A. ("Vale" or the "Company") informs that it has implemented the actions to correct the anomaly previously identified in one of the Forquilha III dam's spillways, located at the Fábrica Mine in Ouro Preto, MG. In line with the plan presented to the auditing company that advises the Minas Gerais Public Prosecutor's Office and to other authorities, the spillway's drainage function was restored, eliminating solids carryover. The National Mining Agency's representatives ("ANM") inspected the spillway and certified the operation execution. The company reaffirms that it will continue to monitor the structure and the implemented solution's effectiveness while making every effort to advance with the Forquilha III dam decharacterization and emergency level reduction.

Gustavo Duarte Pimenta

Executive Vice President, Finance and Investor Relations

For further information, please contact:

[email protected]

Thiago Lofiego: [email protected]

Luciana Oliveti: [email protected]

Mariana Rocha: [email protected]

Patricia Tinoco: [email protected]

Pedro Terra: [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.

	Vale S.A. (Registrant)
	By:	/s/ Thiago Lofiego
Date: April 12, 2024		Director of Investor Relations

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