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Other operating expenses (Tables) | 12 Months Ended
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Dec. 31, 2022
Sociedad Minera Cerro Verde S.A.A. |
Disclosure Other operational expenses [Line Items] |
Schedule of other operating expenses | This item is made up as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the year ended |  | For the year ended |  | For the year ended
​ | ​ | December 31, 2022 | ​ | December 31, 2021 | ​ | December 31, 2020
​ | ​ | US$(000) | ​ | US$(000) | ​ | US$(000)
​ | ​ | ​ | ​ | ​ | ​ | ​
Royalty non-income tax (a) | ​ | 9,238 | ​ | — | ​ | 10,780
Optimization and prefeasibility/feasibility studies (b) | ​ | 8,905 | ​ | 5,929 | ​ | 8,429
Exploration expenses | ​ | 4,973 | ​ | 170 | ​ | 217
Tax contingencies |  | 1,078 |  | 1,903 |  | 704
Other expenses | ​ | 18 | ​ | 508 | ​ | 1,208
Excess of salary limit in workers profit sharing (c) | ​ | — | ​ | — | ​ | 17,146
​ |  | 24,212 |  | 8,510 |  | 38,484
| (a) | Represents current year mining royalties calculated based on revenues according to applicable tax rules (see Note 13(d)).
| (b) | Primarily represents charges related to projects for the optimization of the Company’s operating processes.
| (c) | Corresponds to the excess of salary limit in workers profit sharing to be transferred to the Regional Government and the National Fund for Employment’s Promotion and Training (FONDOEMPLEO), and it’s related to adjustments of previous years income tax assessments (recognized in 2020 primarily as a result of the international arbitration proceeding initiated by the Company.

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