Company: RTNTF
Filing Date: 2025-02-20
Form Type: 20-F
Source: 0001628280-25-006642
Chunk: 436

Company: RIO TINTO LTD
Filing Date: 2025-02-20
Form: 20-F
Chunk 436
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   0.32 |   1.22 |     – |                     76 | 67 | 55 |  – |              66.0 |                            1.335 |  2.606 |  8.112 |     – |     406 |                                         0.46 |   0.30 |   1.20 |     – |
| 41                                           |  0.31 |   0.13 |   0.98 |     – |                     70 | 53 | 50 |  – |              66.0 |                            0.090 |  0.089 |  0.649 |     – |      38 |                                         0.31 |   0.12 |   1.04 |     – |
| 693                                          |  0.90 |   0.31 |   2.03 |     – |                        |    |    |    |                   |                            5.458 |  4.999 | 32.383 |     – |     730 |                                         0.88 |   0.30 |   2.00 |     – |
| 3,295                                        |  0.59 |   0.11 |   0.91 | 0.008 |                        |    |    |    |                   |                           15.941 |  8.204 | 68.863 | 0.174 |   3,387 |                                         0.59 |   0.11 |   0.94 | 0.008 |

Bingham Canyon Underground Skarns Mineral Reserves comprise the Lower Commercial Skarns (LCS) Mineral Reserves and the North Rim Skarn (NRS) Mineral Reserves. It is noted that the Undergrounds Skarns Mineral Reserves are only economically viable while the current open pit is in operation. Escondida Full SaL ore type has replaced oxide ore type. Full SaL is a processing technology that allows the extraction of copper using chlorine-assisted leaching predominantly for sulphidic material, resulting in an increase in Mineral Reserves.

| Annual Report on Form 20-F 2024 | 284 | riotinto.com |

Production, Mineral Reserves, Mineral Resources and operations | Mineral Reserves

| Annual Report on Form 20-F 2024 | 285 | riotinto.com |

Production, Mineral