Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 472

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 472
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) leaseexpires in 2042 with an option of a 21-year extension, then twoyears’ notice of termination; the Queensland Government Alcanlease (ML7031) expires in 2048 with a 21-year right of renewalwith a 2-year notice period.Leases comprise 2,716.9km2(ML7024 = 1340.8km2; ML7031 =1376.1km2).This property with the associated 2 leases, includes thedeposits known as Andoom, East Weipa, Amrun, NormanCreek and North of Weipa.Key permit conditionsThe respective leases are subject to the Comalco AgreementAct (Comalco Agreement) and Alcan Agreement Act (AlcanAgreement); the relevant State Agreements for the Weipaoperations. Key permit conditions are prescribed by theQueensland Government in the relevant EnvironmentalAuthority applicable to each lease (ML7024 and ML7031,respectively). Lease payments are subject to the terms of theleases and the respective State Agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |     | HistoryBauxite mining commenced in 1961 at Weipa. Major upgradecompleted in 1998. Rio Tinto interest increased from 72.4% to100% in 2000. In 1997, Ely Bauxite Mining Project Agreementsigned with local Aboriginal land owners. Bauxite Mining andExchange Agreement signed in 1998 with Comalco to allow forextraction of ore at Ely. The Western Cape Communities Co-Existence Agreement, an ILUA, was signed in 2001. Followingthe ramp up to full production of Amrun the current annualproduction of the Weipa mine is 35.5Mt.Property description/type of mineOpen cut.This Property is considered a production stage property forSK-1300 reporting purposes.Type of mineralisationBauxite.Processing plants and other available facilitiesAndoom, East Weipa and Amrun – wet crushing and screeningplants to remove ultra fine proportion.Power sourceOn-site generation (diesel) supplemented by a solargeneration facility.                                                                                                                                                                             |

| Annual Report on Form 20-F 2024 | 316 | riotinto.com |

Production, Mineral Reserves, Mineral Resources and operations | Mines and production facilities

Other operations Project

| PropertySimandou, Blocks 3& 4OwnershipSimFer S.A., a jointventure betweenSimFer Jersey (85%)and the Republic ofGuinea