# EDGAR Filing Document

**Accession Number:** 0000917851
**File Stem:** 0001292814-25-004172
**Filing Date:** 2025-12
**Character Count:** 3168
**Document Hash:** 573a0b452259d0ff16999eff59610e11
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001292814-25-004172.hdr.sgml**: 20251205

**ACCESSION NUMBER**: 0001292814-25-004172

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20251205

**DATE AS OF CHANGE**: 20251205

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Vale S.A.
- **CENTRAL INDEX KEY:** 0000917851
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15030
- **FILM NUMBER:** 251551176

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** PRAIA DE BOTAFOGO, 186
- **CITY:** RIO DE JANEIRO
- **PROVINCE COUNTRY:** D5
- **BUSINESS PHONE:** 55 21 3485-3900

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** PRAIA DE BOTAFOGO, 186
- **CITY:** RIO DE JANEIRO
- **PROVINCE COUNTRY:** D5

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Companhia Vale do Rio Doce
- **DATE OF NAME CHANGE:** 20051108

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VALLEY OF THE RIO DOCE CO
- **DATE OF NAME CHANGE:** 20020129

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VALLEY OF THE DOCE RIVER CO
- **DATE OF NAME CHANGE:** 19950602

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

December 2025

**Vale S.A.**

Praia de Botafogo nº 186, 18º andar, Botafogo<br> 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 ⌧ Form 40-F ◻

ANNUAL CALENDAR OF CORPORATE EVENTS VALE S.A. Reference: 2026 Schedule dates for the disclosure of Periodic and Occasional Information Complete Annual Financial Statements - Year ended 12/31/25 02/12/2026 Formulário de Referência, relativo ao exercício social em curso 30/05/2025 Disclosure on the Brazilian Corporate Governance Code - Listed Companies 07/31/2026 Quarterly Reports 1Q26 04/28/2026 2Q26 07/30/2026 3Q26 10/29/2026 Annual General Meeting Management Proposal submission 03/12/2026 AGM Call Notice 03/12/2026 Annual General Meeting 04/30/2026 Webcast - Earnings Release 4Q25 02/13/2026 1Q26 04/29/2026 2Q26 07/31/2026 3Q26 10/30/2026 RFoerfemruelnácreio F doer mRe ferência, exer cício soc ial 053/02/90/52/0220625 IFSoSrBm Suulsátraioin daeb iRlietyfe Rreêpnocriat , relativo ao exer cício soc ial em curso 053/02/90/52/0220625

![](vale202512056k_001.jpg)

**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.<br> (Registrant) | Vale S.A.<br> (Registrant) |
|  | By: | /s/ Thiago Lofiego |
| Date: December 5, 2025 |  | Director of Investor Relations |

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