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Cost of sales of goods and services, without considering depreciation and amortization | 12 Months Ended
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Dec. 31, 2022
Disclosure of cost of sales [Line Items] |
Cost of sales, without considering depreciation and amortization | 21. Cost of sales of goods and services, without considering depreciation and amortization
| (a) | The cost of sales of goods is made up as follows:
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2022 |  | 2021 |  | 2020
​ | ​ | US$(000) | ​ | US$(000) | ​ | US$(000)
​ | ​ | ​ | ​ | ​ | ​ | ​
Beginning balance of finished goods and products in process, net of depreciation and amortization |  | 30,031 |  | 31,797 |  | 31,938
​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of production |  |  |  |  |  |
Services provided by third parties |  | 185,028 |  | 224,979 |  | 143,652
Consumption of materials and supplies |  | 94,929 |  | 107,908 |  | 70,942
Direct labor |  | 67,704 |  | 75,099 |  | 62,885
Short-term and low-value leases |  | 29,329 |  | 31,309 |  | 16,289
Electricity and water | ​ | 21,510 | ​ | 17,657 | ​ | 36,504
Maintenance and repair |  | 21,099 |  | 25,681 |  | 22,235
Insurance | ​ | 16,118 | ​ | 16,091 | ​ | 12,036
Transport |  | 13,528 |  | 17,449 |  | 12,234
Other | ​ | 6,404 | ​ | 17,263 | ​ | 11,916
Provision (reversal) for impairment of finished goods and product in progress, note 8(c) |  | (1,071) |  | (5,471) |  | 5,054
Total cost of production |  | 454,578 |  | 527,965 |  | 393,747
Final balance of finished goods and products in process | ​ | (33,624) | ​ | (30,031) | ​ | (31,797)
Write – off of products in process | ​ | 10,957 | ​ | — | ​ | —
Final balance of finished goods and products in process, net of depreciation and amortization |  | (22,667) |  | (30,031) |  | (31,797)
Cost of sales of goods, without considering depreciation and amortization |  | 461,942 |  | 529,731 |  | 393,888
​
| (b) | The cost of services is made up as follows:
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2022 |  | 2021 |  | 2020
​ | ​ | US$(000) | ​ | US$(000) | ​ | US$(000)
​ | ​ | ​ | ​ | ​ | ​ | ​
Services provided by third parties |  | 1,681 |  | 594 |  | 189
Electricity and water |  | 1,204 |  | 556 |  | 668
Insurances |  | 134 |  | 46 |  | 81
Maintenance and repair |  | 46 |  | 31 |  | 55
Consumption of materials and supplies |  | 31 |  | 11 |  | 20
Transport |  | 14 |  | 9 |  | 87
Short-term and low-value lease |  | 3 |  | — |  | 6
Direct labor | ​ | — | ​ | — | ​ | 371
Other minor cost of services |  | 50 |  | 22 |  | 77
​ |  | 3,163 |  | 1,269 |  | 1,554
​
Sociedad Minera Cerro Verde S.A.A. |
Disclosure of cost of sales [Line Items] |
Cost of sales, without considering depreciation and amortization | 15. Cost of sales 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)
​ | ​ | ​ | ​ | ​ | ​ | ​
Materials and supplies |  | 915,323 |  | 698,246 |  | 581,658
Depreciation and amortization (see note 7 and 2(i)) |  | 492,042 |  | 471,759 |  | 451,001
Labor (a) |  | 343,575 |  | 425,524 |  | 288,104
Third-party services |  | 246,247 |  | 220,920 |  | 164,590
Energy |  | 243,549 |  | 194,982 |  | 200,794
Cost related to COVID-19 pandemic (b) | ​ | 43,672 | ​ | 89,050 | ​ | 95,702
Variable lease payments, low-value and short-term leases | ​ | 13,369 | ​ | 5,806 | ​ | 7,399
Depreciation for right-of-use assets (see Note 7 and 10(a)) |  | 12,708 |  | 12,459 |  | 11,320
OEFA and OSINERGMIN contributions (c) |  | 9,308 |  | 10,334 |  | 5,889
WIP stockpile write-offs (see Note 5) | ​ | 7,668 | ​ | — | ​ | —
Management fees | ​ | 2,540 | ​ | 2,352 | ​ | 2,000
Change in work in process inventory |  | (1,358) |  | (16,609) |  | (49,575)
Change in finished goods inventory |  | (10,368) |  | (6,129) |  | 10,391
Other costs | ​ | 49,492 | ​ | 46,394 | ​ | 39,982
​ |  | 2,367,767 |  | 2,155,088 |  | 1,809,255
​
| (a) | For the year ended December 31, 2022, labor includes an expense of US$118.2 million related to 2022 profit sharing (US$156.2 million for the year ended December 31, 2021 and US$28.9 million for the year ended December 31, 2020), and a credit of US$3.1 million (US$2.6 for the year ended December 31, 2021 and an expense of US$8.3 million for the year ended December 31, 2020), as a result of the recognition of lower contingent liabilities of prior years still open to review by the tax authority. Additionally, the year ended December 31, 2021, includes an expense of US$91.7 million for bonuses granted to workers as part of the new Union Agreements signed in 2021 (with terms of either 3 or 4 years beginning September 1, 2021).
| (b) | For the year ended December 31, 2022, the Company recognized expenses associated with the COVID-19 pandemic of US$43.7 million, mainly for medical tests. For the year ended December 31, 2021, the Company recognized expenses of US$89.1 million, mainly for labor costs associated with quartered-personnel at the mine site, including housing costs and medical tests. For the year ended December 31, 2020, the Company recognized expenses of US$95.7 million, mainly representing incremental costs related to the state of care and maintenance of the facilities as part of Peru’s declaration of a National Emergency as a result of the COVID-19 outbreak, which restricted the Company’s operations (US$51.1 million), general COVID-19 expenses, mainly representing labor expense associated with quartered-personnel at the mine site including housing costs and medical tests (US$30.9 million) and cost savings initiatives that include severance costs associated with employee retirement programs and canceled capital projects (US$13.7 million).
| (c) | The Company is subject to OSINERGMIN and OEFA (Organismo de Evaluación y Fiscalización Ambiental) royalties. The calculation for the OSINERGMIN royalty is 0.14% of invoiced sales for the year 2022, 2021 and 2020, and the calculation for the OEFA royalty is 0.10% of invoiced sales for the year 2022, 2021 and 2020.
In compliance with corporate policies, the Company recognizes administrative costs as an inventory cost (approximately US$44.5 million for the year ended December 31, 2022, US$45.3 million for the year ended December 31, 2021 and US$35.6 million for the year ended December 31, 2020). The effect of this policy is immaterial to the financial statements as a whole.

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