Inventories (Tables)
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12 Months Ended |
Dec. 31, 2025 |
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| Inventories |
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| Schedule of detailed information of inventories |
| | | | | | | 2025 | | 2024 | | | US$(000) | | US$(000) | | | | | | Finished goods, net | | 2,073 | | 5,200 | Products in process, net | | 28,740 | | 14,334 | Spare parts and supplies, net | | 44,855 | | 60,060 | | | 75,668 | | 79,594 |
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| Schedule of changes in provisions for impairment of inventory |
| | | | | | | | | 2025 | | 2024 | | 2023 | | | US$(000) | | US$(000) | | US$(000) | | | | | | | | Beginning balance | | 30,202 | | 34,762 | | 29,842 | Continuing operations: | | | | | | | Finished and in progress goods, note 20(a) - | | | | | | | Provision | | 338 | | 4,049 | | 10,536 | Reversal | | (2,120) | | (10,536) | | (6,685) | | | (1,782) | | (6,487) | | 3,851 | Spare parts and supplies, note 28(a) - | | | | | | | Provision | | 30,255 | | 27,304 | | 20,478 | Reversal | | (27,304) | | (25,377) | | (19,409) | | | 2,951 | | 1,927 | | 1,069 | Final balance | | 31,371 | | 30,202 | | 34,762 |
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| Sociedad Minera Cerro Verde S.A.A. |
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| Inventories |
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| Schedule of detailed information of inventories |
| | | | | | | December 31, | | December 31, | | | 2025 | | 2024 | | | US$(000) | | US$(000) | Current | | | | | Materials and supplies (a) | | 503,925 | | 458,203 | Work-in-process (WIP) (b) | | 159,828 | | 159,354 | Finished goods: | | | | | Copper cathode | | 7,636 | | 4,043 | Copper concentrate | | 4,137 | | 13,085 | Molybdenum concentrate | | 1,610 | | 4,183 | | | 677,136 | | 638,868 | Non-current | | | | | Work-in-process WIP (b) | | 235,321 | | 264,004 | | | | | | Total inventories | | 912,457 | | 902,872 |
| (a) | For the years ended December 31, 2025, 2024 and 2023, the Company recognized an expense associated with materials and supplies obsolescence of US$1.0 million, US$6.9 million and US$12.5 million, respectively (see note 15). |
| (b) | WIP inventories represent mill and leach stockpiles that have been extracted from the open pit and are available for copper recovery. Based on the future mine plan production, the Company identifies the portion of inventory that is classified as current or non-current. For mill stockpiles, recovery is through milling and concentrating. For leach stockpiles, recovery is through exposure to acidic solutions that dissolve copper and deliver it in a solution to extraction processing facilities. For the years ended December 31, 2025 and 2024, the Company did not record any inventory adjustment for work in process. For the year ended December 31, 2023, the Company recorded metal inventory adjustment totaling US$1.5 million associated with the write-off of leach and certain long-term mill stockpiles (see note 15). |
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