Company: RTNTF
Filing Date: 2025-03-07
Form Type: S-8
Source: 0001628280-25-011174
Chunk: 0

Company: RIO TINTO LTD
Filing Date: 2025-03-07
Form: S-8
Chunk 0
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 filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| Large accelerated filer |     | ☒ |     | Accelerated filer         |     | ☐ |
| Non-accelerated filer   |     | ☐ |     | Smaller reporting company |     | ☐ |
| Emerging growth company |     | ☐ |     |                           |     |   |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act of 1933 (the “

#### Securities Act
”).

| 2 |

### EXPLANATORY NOTE
This registration statement on Form S-8 (“Registration Statement”) is being filed pursuant to General Instruction E to Form S-8 for the purpose of registering: (i) an aggregate of 1,130,000 additional ordinary shares, nominal value 10 pence per share, in the capital of Rio Tinto plc (the “plc Shares”) under the Rio Tinto plc Equity Incentive Plan 2018 (the “2018 plc Plan”) and (ii) an aggregate of 25,000 additional shares in the capital of Rio Tinto Limited (the “Limited Shares”) under the Rio Tinto Limited Equity Incentive Plan 2018, (the “2018 Limited Plan”).

These additional plc Shares and Limited Shares are additional securities of the same class as other securities for which a registration statement on Form S-8 (File No. 333-224907 ) was filed with the Securities and Exchange Commission (the “Commission”) on May 14, 2018 (the “Prior S-8 Registration Statement”), and were not previously registered under the Prior S-8 Registration Statement. Pursuant to General Instruction E to Form S-8, the contents of the Prior S-8 Registration Statement are incorporated by reference into this Registration Statement, except as otherwise set forth herein.

# PART II

### INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

## Item 3. Incorporation of Documents By Reference.
We incorporate by reference into this registration statement:

(a) Annual Report on Form 20-F of Rio Tinto plc and Rio Tinto Limited for the year ended 31 December 2024.

(b) All other reports filed