Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 447

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 447
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 of the fines product using hydrocyclones. At Marandoo, wetscrubbing and screening is used to produce lump and fines iron oreproducts, prior to desliming of fines products using hydrocyclones. Orefrom the Channar and Paraburdoo mines is crushed and thenprocessed through a central tertiary crushing and dry screening plant toproduce a dry lump product, with further wet processing of the finesusing hydrocyclones to remove slimes. Ore from the Tom Price andWestern Turner Syncline mines is directed to either the high-gradeplant for dry crushing and screening to dry lump and fines products, orto the low-grade plant for beneficiation. Heavy media separation isused to beneficiate low-grade lump, and a combination of heavy mediahydrocyclones and spirals is used to beneficiate the low-grade fines. AtYandicoogina, ore is crushed to fines product only through acombination of dry crushing and screening, or crushing and wetprocessing of ore using classification to remove finer particles.The processing plants within the Hamersley Iron network varyconsiderably in age, and many plants have been subject tobrownfields development since original construction. All plants aresubject to an ongoing regime of sustaining capital investment andmaintenance, underpinned by asset integrity audits, engineeringinspections, engineering life cycles for key equipment and safetyinspections and audits.Power sourceSupplied through the integrated Hamersley and Robe powernetwork operated by Pilbara Iron. |

| Annual Report on Form 20-F 2024 | 303 | riotinto.com |

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

| PropertyAustralian PilbaraOperationsMineBao-HI Joint Venture:–Eastern Range andWestern RangeminesOwnership54% Rio TintoRio Tinto owns 54% ofthe Bao-Hi joint venturewith the remaining 46%held by China BaowuGroupOperatorRio TintoLocationPilbara region,Western Australia |     | Access and infrastructureAccess and infrastructure within the property includes:–a network of sealed and unsealed roads connecting to publicroads and highways–public and Rio Tinto-operated airports–a Hamersley and Robe owned integrated heavy haulage railnetwork, operated by Pilbara Iron comprising nearly2,000km of rail, rail cars and locomotives–four shipping terminals, located at Dampier and CapeLambert and managed as a single port system–water piping networks for both abstracted water and supplyof fresh