Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 538

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 538
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er S.A. of its obligations under the Amended and Consolidated Basic Convention, including not reaching first commercial production by a certain date; (ii) the physical completion of the Mining Infrastructure does not occur by 31 December 2026; the Main Rail Line, SimFer Spur Line, WCS Spur Line and WCS Barge Port are not completed by 31 December 2026, and the State withdraws the WCS Concession, provided that these deadlines can be postponed based on legitimate grounds such as force majeure events and/or following the application of extension mechanisms provided for in, and in accordance with, the Co- Development Agreement and/or the Mine Bipartite Agreement. No such termination or withdrawal has been notified to SimFer S.A. to date. For further details regarding the titles, leases and rights for Simandou, see Section 3 of the Simandou Technical Report Summary filed as exhibit 96.4 to this Form 20-F for the year ended 31 December 2023 (“2023 Form 20-F ”). Personnel Personnel will be engaged on either a residential, or FIFO basis. During construction, personnel will be sourced from capital and regional centers in Guinea, as well as overseas where local skills are unavailable. Age, modernisation and condition of the equipment and facilities The facilities at Simandou are relatively new, or under construction. All infrastructure, equipment, and facilities are subject to an ongoing regime of sustaining capital investment and maintenance, underpinned by asset integrity audits, engineering inspections, engineering life cycles for key equipment, and safety inspections and audits. Book value For the book value for Simandou, see Rio Tinto Financial Information by Business Unit on pages 266 - 267 . Geology and mineralisation The Ouéléba and Pic de Fon deposits are located in the Simandou Range, on a prominent ridge. The Simandou Range is the result of multi-phase ductile deformation represented by tight synformal fold keels and sheared antiformal structures. The ridge consists of a formation of itabirites (metamorphosed Banded Iron Formation (BIF)) and phyllites, overlying basement gneiss and amphibolite. The itabirites and phyllites have been deeply weathered and identifying stratigraphy is difficult, with the only discernible contact being that between the itabirites, and phyllites. The Ouéléba deposit is located towards the southern end of the Simandou Range, approximately