Company: RTNTF
Filing Date: 2025-03-03
Form Type: 6-K
Source: 0001628280-25-009379
Chunk: 0

Company: RIO TINTO LTD
Filing Date: 2025-03-03
Form: 6-K
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### FORM 6-K
<div align='center'>REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16</div>

#### UNDER THE SECURITIES EXCHANGE ACT OF 1934

#### For the month of February 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        |

<div align='center'>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 ☐</div>

### EXHIBITS
99.1 Stock Exchange announcement dated 3 February 2025 entitled ‘Total Voting Rights and Issued Capital’.

99.2 Media release dated 13 February 2025 entitled ‘Safety is Rio Tinto’s priority as Tropical Cyclone Zelia intensifies’.

99.3 Media release dated 16 February 2025 entitled ‘Rio Tinto provides Iron Ore update following Tropical Cyclone Zelia’.

99.4 Stock Exchange announcement dated 19 February 2025 entitled ‘Mineral Resources and Ore Reserves updates’.

99.5 Stock Exchange announcement dated 19 February 2025 entitled ‘Mineral Resources and Ore Reserves updates: supporting information and Table 1 checklists’.

99.6 Media release dated 19 February 2025 entitled ‘Rio Tinto notes Mitsui has agreed to join Rhodes Ridge Joint Venture’.

99.7 Stock Exchange announcement dated 20 February 2025 entitled ‘Appendix 3A.1 – Notification of dividend / distribution’.

99.8 Stock Exchange announcement dated 20 February 2025 entitled ‘Appendix 4G – Key to Disclosures – Corporate Governance