Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 435

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 435
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 |   0.52 |   0.07 |    0.55 | 0.009 |                                           1,319 |   0.68 |   0.17 |  1.45 | 0.007 |

1. Type of mine: O/P = open pit/surface, S/P = stockpile, U/G = underground. 2. Copper Mineral Reserves are reported as dry mill feed tonnes. 3. Bingham Canyon Mineral Reserves valuations are based on commodity prices of USc389.58/lb for copper, US$1,700.53/oz for gold, US$22.20/oz for silver and US$14.50/ lb for molybdenum. These prices are sourced from the average of the available forecasts from ten brokers/banks (Barclays, BoAML, Citigroup, Credit Suisse, Deutsche Bank, Goldman Sachs, JP Morgan, Macquarie, Morgan Stanley and UBS) and two analysts (CRU and Woodmac). 4. Bingham Open Pit Mineral Reserves molybdenum grades interpolated from exploration drilling assays have been factored based on a long reconciliation history to blast hole and mill samples. 5. Escondida Mineral Reserves valuations are based on a copper price of USc403/lb supplied by the JV partner. 6. For Escondida Mineral Reserves, Full Sal ore type has replaced oxide ore type due to a change in processing methodology. 7. Oyu Tolgoi Mineral Reserves valuations are based on commodity prices of USc390.00/lb for copper, US$1,649.00/oz for gold, US$22.10/oz for silver and US$14.20/lb for molybdenum. These are based on January 2024 consensus prices sourced from the average forecasts from ten brokers/banks (Barclays, BoAML, Citigroup, Credit Suisse, Deutsche Bank, Goldman Sachs, JP Morgan, Macquarie, Morgan Stanley and UBS) and two analysts (CRU and Woodmac). 8. The Hugo Dummett North Mineral Reserves include approximately 1.3 million tonnes of stockpiled material at a grade of 0.45% copper, 0.14g/t gold and 1.09g/t silver.

| Annual Report on Form 20-F 2024 | 283 | riotinto.com |

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