Vale boosts Onça Puma output with US$480m furnace

Vale S.A. reports that its subsidiary Vale Base Metals has successfully started operating the second electric furnace at the Onça Puma site in Brazil.

Rhea-AI Filing Summary

Vale S.A. reports that its subsidiary Vale Base Metals has successfully started operating the second electric furnace at the Onça Puma site in Brazil. The new furnace adds 15 thousand tonnes per year to production capacity, bringing the site’s nominal capacity to 40 thousand tonnes per year.

The rebuild project was completed on schedule with an investment of approximately US$ 480 million, which the company states was 13% below budget. Vale highlights this project as reinforcing its commitment to competitive and sustainable operations in Pará and across Brazil, aimed at generating long-term value for stakeholders.

Insights

Metals & Mining Operations Analyst

Vale boosts Onça Puma capacity and completes a major furnace project under budget.

Vale has brought a second electric furnace online at its Onça Puma site, raising nominal capacity to 40 thousand tonnes per year. This follows a rebuild project costing about US$ 480 million, which the company notes was delivered within schedule.

The disclosure that spending came in 13% below budget suggests disciplined capital execution on a large industrial project. Expanded capacity at a single site does not, by itself, indicate how overall group volumes or margins will change, but it can strengthen the asset’s role within Vale’s base metals portfolio.

Management also frames the project as a commitment to competitive and sustainable operations in Pará and Brazil. Future company reports and production updates will be needed to see how quickly the additional 15 thousand tonnes per year of nominal capacity translates into actual output and revenue contribution.

FAQ

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What did Vale S.A. announce in its September 2025 6-K filing for VALE?

Vale announced that its subsidiary Vale Base Metals successfully started operating the second electric furnace at the Onça Puma site in Brazil, raising nominal production capacity to 40 thousand tonnes per year and completing a major rebuild project on schedule and below budget.

How much new production capacity does Vale’s second Onça Puma furnace add for VALE?

The new second electric furnace at Onça Puma adds 15 thousand tonnes per year of nominal production capacity. This increases the site’s total nominal capacity to 40 thousand tonnes per year, enhancing Vale’s potential output from this Brazilian operation within its base metals segment.

What was the investment amount in Vale’s Onça Puma second furnace project for VALE?

Vale reports investing approximately US$ 480 million in rebuilding and starting up the second electric furnace at Onça Puma. The company states the project was delivered within schedule and that total spending came in 13% below the original budget, highlighting disciplined capital execution.

How did Vale describe the budget performance of the Onça Puma furnace project for VALE?

Vale stated that the second furnace rebuild project at Onça Puma was completed with an investment of about US$ 480 million, which was 13% below budget. This under-budget outcome suggests effective cost control on a large industrial initiative within its base metals operations in Brazil.

What strategic message did Vale link to the Onça Puma second furnace start-up for VALE investors?

Vale emphasized that the successful start-up of the second Onça Puma furnace demonstrates its commitment to Pará and Brazil and to globally competitive, world-class operations. The company framed the project as supporting more competitive and sustainable operations that generate long-term value for stakeholders.

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Accepted by SEC EDGAR 09/30/2025 - 08:48 AM Learn about SEC filing dates

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

September 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 ¨

 Vale and VBM celebrate the start-up of Onça Puma’s second furnace Rio de Janeiro, September 30th, 2025 - Vale S.A. (“Vale” or the “Company”) announces that its subsidiary Vale Base Metals Ltd. (“VBM”) has successfully commenced the second furnace operation at its Onça Puma site. The second electric furnace will add 15 ktpy to the site’s production capacity, increasing its nominal capacity to 40 ktpy. Delivered within schedule, the furnace rebuild project involved an investment of approximately US$ 480 million, 13% below budget. “This investment and successful delivery of the project is a tangible demonstration of VBM’s commitment to Pará and Brazil and further ensures the company has globally competitive, world-class operations,” said Shaun Usmar, CEO of VBM. Vale and VBM reaffirm their commitment to increasingly competitive and sustainable operations that generate long-term value for all stakeholders. Marcelo Feriozzi Bacci Executive Vice President, Finance and Investor Relations For further information, please contact: Vale.RI@vale.com Thiago Lofiego: thiago.lofiego@vale.com Mariana Rocha: mariana.rocha@vale.com Luciana Oliveti: luciana.oliveti@vale.com Pedro Terra: Pedro.terra@vale.com Patrícia Tinoco: patricia.tinoco@vale.com 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. Press Release  

 

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: September 30, 2025		Director of Investor Relations