Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 431

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 431
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). Each Qualified Person consents to the inclusion in this Form 20-F of information they have provided in the form and context in which it appears. Qualified Persons responsible for the estimates are listed on p age 301 , by operation, along with their professional affiliation, employer, and accountability for Mineral Resources and/or Mineral Reserves. Mineral Resources and Mineral Reserves from our managed operations are the responsibility of the managing directors of the business units and estimates are carried out by the Qualified Persons. Mineral Resources and Mineral Reserves from externally managed operations, in which Rio Tinto holds a minority share, are reported as received from the managing entity and in accordance with SK-1300. The Mineral Resources and Mineral Reserves figures in the following tables are as of 31 December 2024. Metric units are used throughout. The figures used to calculate Rio Tinto’s Mineral Resources and Mineral Reserves are more precise than the rounded numbers shown in the tables, hence small differences might result if the calculations are repeated using the tabulated figures. JORC Table 1 reports for new or materially changed significant deposits are released to the market. They are also available at riotinto.com/resourcesandreserves. JORC Table 1, SEC Technical Report Summaries and NI 43-101 Technical Reports generated by non-managed units or joint venture partners are referenced within the reporting footnotes with the location and initial reporting date identified. For SEC reporting purposes, the Pilbara Operations, Oyu Tolgoi, Escondida and Simandou are considered material to the Group and hence require submission of a Technical Report Summary. The Technical Report Summary for Simandou was filed as exhibit 96.4 to the Form 20-F f o r the year ended 31 December 2023; the Technical Report Summaries for Escondida and Oyu Tolgoi were filed as exhibit 96.2 and exhibit 96.3, respectively, to the Form 20-F for the year ended 31 December 2022 and the Technical Report Summary for the Pilbara Operations was filed as exhibit 96.1 to the Form 20-F for the year ended 31 December 2021.

| Annual Report on Form 20-F 2024 | 278 | riotinto.com |

Production, Mineral Reserves, Mineral Resources and operations

Mineral Reserves

|                                    | Type ofmine1 | Proven Mineral Reservesas at 31 December 2024 |        |         | Probable Mineral Reservesas at 31