# EDGAR Filing Document

**Accession Number:** 0000887028
**File Stem:** 0000863064-26-000020
**Filing Date:** 2026-4
**Character Count:** 6595
**Document Hash:** 46b2f8b0fa77ab79e640a3879fc7872f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000863064-26-000020.hdr.sgml**: 20260408

**ACCESSION NUMBER**: 0000863064-26-000020

**CONFORMED SUBMISSION TYPE**: SD

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260408

**DATE AS OF CHANGE**: 20260408

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RIO TINTO PLC
- **CENTRAL INDEX KEY:** 0000863064
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** X0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SD
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-10533
- **FILM NUMBER:** 26847081

**BUSINESS ADDRESS:**
- **STREET 1:** 6 ST JAMES'S SQUARE
- **CITY:** LONDON, SW1Y 4AD
- **STATE:** X0
- **ZIP:** 00000
- **BUSINESS PHONE:** 801-204-8000

**MAIL ADDRESS:**
- **STREET 1:** RIO TINTO SERVICES INC.
- **STREET 2:** 80 STATE STREET
- **CITY:** ALBANY
- **STATE:** NY
- **ZIP:** 12207-2543

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RTZ CORPORATION PLC
- **DATE OF NAME CHANGE:** 19950522
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RIO TINTO LTD
- **CENTRAL INDEX KEY:** 0000887028
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL MINING [1000]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** C3
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SD
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34121
- **FILM NUMBER:** 26847082

**BUSINESS ADDRESS:**
- **STREET 1:** 43-120 COLLINS STREET
- **STREET 2:** MELBOURNE
- **CITY:** VICTORIA 3000
- **STATE:** C3
- **ZIP:** AUSTRALIA
- **BUSINESS PHONE:** 801-204-2000

**MAIL ADDRESS:**
- **STREET 1:** RIO TINTO SERVICES INC.
- **STREET 2:** 80 STATE STREET
- **CITY:** ALBANY
- **STATE:** NY
- **ZIP:** 12207-2543

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CRA LTD
- **DATE OF NAME CHANGE:** 19950725

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549**

**FORM SD**

**Specialized Disclosure Report**

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;Commission file number: 001-10533 | &nbsp;&nbsp;&nbsp;Commission file number: 001-34121 |
| &nbsp;&nbsp;&nbsp;**Rio Tinto plc** | &nbsp;&nbsp;&nbsp;**Rio Tinto Limited** |
|  | &nbsp;&nbsp;&nbsp;**ABN 96 004 458 404** |
| &nbsp;&nbsp;&nbsp;(Exact name of the registrant as specified in its charter) | &nbsp;&nbsp;&nbsp;(Exact name of the registrant as specified in its charter) |
| &nbsp;&nbsp;&nbsp;**6 St James's Square** | &nbsp;&nbsp;&nbsp;**Level 43, 120 Collins Street** |
| &nbsp;&nbsp;&nbsp;**London, SW1Y 4AD, United Kingdom** | &nbsp;&nbsp;&nbsp;**Melbourne, Victoria 3000, Australia** |
| &nbsp;&nbsp;&nbsp;(Address of principal executive offices) | &nbsp;&nbsp;&nbsp;(Address of principal executive offices) |

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**Julie Parent, T: 514-848-8519**

(Name and telephone number, including area code, of the person to contact in connection with this report)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

<u>_X_</u> Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2025.

<u>___</u> Rule 13q-1 under the Securities Exchange Act (17 CFR 240.13q-1) for the reporting period from January 1 to December 31, 2025.

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**Section 1 - Conflict Minerals Disclosure Item 1.01 Conflict Minerals Disclosure**

This Specialized Disclosure Form ("Form SD") of Rio Tinto plc and Rio Tinto Limited (hereafter "Rio Tinto") is being filed in accordance with Rule 13p-1 under the Securities Act of 1934 ("Rule") for the reporting period ending December 31, 2025. The Rule imposes disclosure requirements of certain information when a company manufactures or contracts to manufacture products for which the Conflict Minerals (defined below) are necessary to the functionality or production of those products. The term "Conflict Minerals" means cassiterite, columbite-tantalite (coltan), gold, wolframite and their derivatives which are limited to tantalum, tin and tungsten.

Rio Tinto finds, mines, processes and supplies metals and minerals. Our products include aluminum, copper, iron ore, and industrial minerals (borates, titanium dioxide, iron ore pellets and concentrate, and salt), as well as diamonds, scandium, lithium, metallic powders, gold, silver, sulfuric acid, and molybdenum.

Rio Tinto undertook an assessment of all of its products and identified one subsidiary of Rio Tinto that is within the scope of the Rule: Kennecott Utah Copper LLC ("Kennecott").

Based on a reasonable country of origin inquiry ("RCOI"), Rio Tinto has no reason to believe that the Conflict Minerals contained in its products originated in the Democratic Republic of the Congo or an adjoining country ("Covered Countries").

**Kennecott** 

Kennecott is based in the United States of America and produces gold bars. Kennecott's gold production is independently assured and assessed as conforming with the London Bullion Market Association (LBMA) Responsible Gold Guidance. As part of Kennecott's raw materials purchasing procedure to produce gold bars, its chain custody management system requires that all purchased copper concentrate have a certificate of origin. Kennecott has used this information to complete its RCOI and has determined that gold used in Kennecott's gold bars did not originate in the Covered Countries. Kennecott is listed on the Responsible Minerals Initiative Conflict Free Gold Refiners List (CID000969) as compliant with the relevant Responsible Minerals Assurance Process.

In accordance with Rule, the Form SD is posted on Rio Tinto's web site at https://www.riotinto.com/en/invest/reports.

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned, thereunto duly authorised.

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| | | | |
|:---|:---|:---|:---|
| **Rio Tinto plc** | **Rio Tinto plc** | **Rio Tinto Limited** | **Rio Tinto Limited** |
| (Registrant) | (Registrant) | (Registrant) | (Registrant) |
| By | <u>/s/ Andrew Hodges&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u> | By | <u>/s/ Tim Paine&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u> |
| Name | Andrew Hodges | Name | Tim Paine |
| Title | Company Secretary | Title | Company Secretary |
| Date | 8 April 2026 | Date | 8 April 2026 |

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