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
June 2026
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 releases
its Sustainability-Related Financial Information Report Rio de Janeiro, June 15, 2026 – Vale S.A. (“Vale” or the “Company”)
announces today, on a voluntary basis, the release of its 2025 Sustainability-Related Financial Information Report, reinforcing the company’s
pioneering role on sustainability and transparency. Vale was the first mining company in the world and the first Brazilian company to
publish, last year, a report aligned with the new standards established by the International Sustainability Standards Board (ISSB) for
reporting sustainability-related risks and opportunities. In its first edition, the report focused on climate-related data. In this second
edition, Vale expands its risk analysis to four additional topics: tailings dams, environmental licensing, community relations and human
rights, and health and safety. It also introduces a new business opportunity linked to waste reuse. “This second edition of the
ISSB-aligned report reflects the evolution and maturity of Vale’s sustainability agenda. We have advanced in integrating sustainability
and finance, providing increasingly consistent and relevant information to support responsible investment decision-making. This reinforces
our commitment to transparency, the quality of disclosed data, and long-term sustainable value creation”, said Grazielle Parenti,
Executive Vice President of Sustainability. The new opportunity identified is circular mining, a term used to describe the application
of circular economy principles to mining. The goal is to maximize the use of extracted resources, including the reuse of process waste,
to reduce waste and environmental impacts while creating business value. Last year, Vale produced 26 million tonnes of iron ore through
circularity initiatives, an increase of 107% compared to the previous year. Currently, circular mining accounts for 8% of the company’s
total production, with an ambition to reach 10% of total production by 2030. Key initiatives under the Circular Mining Program include
the reuse of materials from stockpiles and tailings dams, as well as the production of co-products such as Sustainable Sand and construction
inputs derived from iron ore processing waste. Other business opportunities highlighted in the report include growing demand for iron
ore products that can help reduce carbon emissions in the steel industry, as well as increasing demand for energy transition metals such
as copper and nickel. The publication of the ISSB-aligned report reflects Vale’s commitment to transparency, which includes disclosing
relevant documents to support investor decision-making, such as the Annual Report released in April. “By publishing reports based
on globally recognized standards, we disclose our sustainable practices transparently, supporting responsible investment decisions and
enhancing the quality and reliability of ESG-related information. Transparency is a key pillar of Vale’s relationship with investors
and society”, said Marcelo Bacci, Executive Vice President of Finance and Investor Relations. Vale’s ISSB-aligned report
was prepared in accordance with the IFRS Sustainability Disclosure Standards, ensuring a high level of transparency regarding the financial
impacts of the company’s sustainability initiatives. Marcelo Feriozzi Bacci Executive Vice President, Finance and Investor Relations
For further information, please contact: Press Release Vale.RI@vale.com Thiago Lofiego: thiago.lofiego@vale.com Luciana Oliveti: luciana.oliveti@vale.com
Pedro Terra: pedro.terra@vale.com Patricia 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.


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.
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Vale S.A.
(Registrant) |
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By: |
/s/ Thiago Lofiego |
| Date: June 15, 2026 |
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Director of Investor Relations |