Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 412

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 412
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rawn facility arrangements for an aggregate amount of US$ 7.5billion ( 2023 : US$ 7.5billion ). The facilities are guaranteed by Rio Tinto plc and Rio Tinto Limited. Rio Tinto plc has provided a guarantee, known as the completion support undertaking (CSU), in favour of the Oyu Tolgoi LLC project finance lenders. In 2023, a wholly owned subsidiary of Rio Tinto plc became a lender under the project finance facility ranking pari passu with the external lenders. At 31 December 2024 , a total of US$ 5.5billion ( 2023 : US$ 4.7billion ) of project finance debt was outstanding under this facility of which US$ 3.9 billion ( 2023 : US$ 3.9billion ) is owed to external third party lenders. Rio Tinto plc, through its subsidiaries, owns 66% of Oyu Tolgoi LLC, with the remaining share owned by Erdenes Oyu Tolgoi LLC ( 34% ), which is controlled by the Government of Mongolia. The project finance was raised for development of the underground mine and the CSU will terminate on the completion of the underground mine according to a set of completion tests set out in the project finance facility. The CSU contains a carve-out for certain political risk events. In November 2024, the Group entered into a US$ 7billion bridge facility agreement to support the proposed acquisition of Arcadium Lithium (refer to note 5). Rio Tinto Plc and Rio Tinto Limited have jointly guaranteed the facility, which remains undrawn as at 31 December 2024 . 38 Auditors’ remuneration

Group auditors’ remuneration (a)

|                                                                                  | 2024US$m | 2023US$m | 2022US$m |
| Audit of the Group                                                               |     20.7 |     19.1 |     17.3 |
| Audit of subsidiaries                                                            |      7.4 |      7.5 |      8.4 |
| Total audit                                                                      |     28.1 |     26.6 |     25.7 |
| Audit-related assurance service                                                  |      1.7 |      1.1 |      1.0 |
| Other assurance services(b)                                                      |      3.5 |      3.0 |      2.3