Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 510

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 510
---
 (CIDs), and Detrital Iron Deposits (DIDs). The five ore type categories defined for reporting Mineral Resources are Boolgeeda, Brockman, Marra Mamba, CID, and DID. All mines operated by Rio Tinto at the Pilbara Property are open pit mines. The mining method employed uses conventional surface mining, whereby shovels and loaders are used to load drilled and blasted material into trucks for removal to waste dumps or feed process plants. For SEC reporting purposes the Pilbara operations are considered a production stage property. The location of the operations is shown in the location map and is centred around Latitude 22° S, Longitude 118° E. In addition to mining activities, Rio Tinto conducts both exploration and development activities across the property. History Rio Tinto commenced exploration in the Hamersley Ranges in 1962 through its subsidiary Conzinc Riotinto of Australia (CRA) following the easing of the Australian Government’s iron ore export embargo in November 1960 and the subsequent issue of exploration permits, which laid the foundation for the development and growth of the iron ore industry in the Pilbara region. Rio Tinto’s initial first full calendar year of production commenced by Hamersley Iron in 1967, mining 6.2Mt and shipping 3.6Mt of iron ore, supported by a workforce of some 4,500 employees. As of 31 December 2024, the Pilbara Property had over 17,000 employees and contractors operating a total of 17 mines. For a full description of the history of the previous operations (including identities of the previous operators) of each of the mines which makeup the Pilbara Property, see Mines and Production Facilitie s on p ages 302 - 305 . Infrastructure Roads Rio Tinto operates and maintains nearly 10,000km of roads and tracks at the Pilbara Property. Approximately 360km are sealed roads located within mine sites or between mine sites and public roads. The remaining are unsealed with approximately 80% classified as tracks and 20% classified as roads. Rail Rio Tinto’s railway at Pilbara is the largest privately owned, operated, and maintained railway in the world. Nearly 2,000km of track infrastructure, connects the 17 mine sites to two ports. The rail system includes an integrated control signalling system and is further supported by the Pilbara communication, train control and AutoHaul® systems. Rio Tinto’s railway at the Pilbara Property operates and complies