Company: RTNTF
Filing Date: 2025-05-01
Form Type: 6-K
Source: 0001628280-25-021424
Chunk: 0

Company: RIO TINTO LTD
Filing Date: 2025-05-01
Form: 6-K
Chunk 0
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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 UNDER THE SECURITIES EXCHANGE ACT OF 1934 May 1, 2025

| Commission file number: 001-10533               | Commission file number: 001-34121              |
| Rio Tinto plc                                   | Rio Tinto Limited                              |
|                                                 | ABN 96 004 458 404                             |
| (Translation of registrant’s name into English) | -Translation of registrant’s name into English |
| 6 St. James’s Square                            | Level 43, 120 Collins Street                   |
| London, SW1Y 4AD, United Kingdom                | Melbourne, Victoria 3000, Australia            |
| (Address of principal executive offices)        | -Address of principal executive offices        |

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: Form 20-F ☒ Form 40-F ☐

EXHIBITS 99.1 Stock Exchange announcement dated 1 May 2025 entitled ‘ Rio Tinto Limited 2025 Annual General Meeting: address by the Chair ’. 99.2 Stock Exchange announcement dated 1 May 2025 entitled ‘ Rio Tinto Limited 2025 Annual General Meeting: address by the Chief Executive ’. 99.3 Stock Exchange announcement dated 1 May 2025 entitled ‘ Results of Rio Tinto annual general meetings ’.

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.

| Rio Tinto plc |                   | Rio Tinto Limited |                   |
| (Registrant)  |                   | -Registrant       |                   |
| By            | /s/ Andrew Hodges | By                | /s/ Tim Paine     |
| Name          | Andrew Hodges     | Name              | Tim Paine         |
| Title         | Company Secretary | Title             | Company Secretary |
| Date          | 1 May 2025        | Date              | 1 May 2025        |