Commitments and contingencies - Additional information (Details)
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1 Months Ended |
12 Months Ended |
24 Months Ended |
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Dec. 19, 2023
USD ($)
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Dec. 19, 2023
PEN (S/)
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Jun. 23, 2004 |
Dec. 31, 2025
USD ($)
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Dec. 31, 2025
PEN (S/)
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Sep. 30, 2025
USD ($)
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Apr. 30, 2025
USD ($)
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Apr. 30, 2025
PEN (S/)
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Dec. 31, 2023
USD ($)
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Dec. 31, 2023
PEN (S/)
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Oct. 31, 2023
USD ($)
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Jan. 31, 2023
USD ($)
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Jan. 31, 2023
PEN (S/)
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Nov. 30, 2020
USD ($)
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Nov. 30, 2020
PEN (S/)
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Dec. 31, 2025
USD ($)
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Dec. 31, 2024
USD ($)
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Dec. 31, 2023
USD ($)
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Dec. 31, 2023
PEN (S/)
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Dec. 31, 2022
USD ($)
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Dec. 31, 2015
USD ($)
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Dec. 31, 2015
PEN (S/)
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Sep. 30, 2025
PEN (S/)
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Dec. 31, 2025
PEN (S/)
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Dec. 19, 2024
USD ($)
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Dec. 19, 2024
PEN (S/)
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Nov. 20, 2024
USD ($)
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Nov. 20, 2024
PEN (S/)
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Aug. 28, 2024
USD ($)
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Aug. 28, 2024
PEN (S/)
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Dec. 31, 2023
PEN (S/)
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Dec. 19, 2023
PEN (S/)
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Aug. 11, 2023
USD ($)
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Aug. 11, 2023
PEN (S/)
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Jul. 31, 2023
USD ($)
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Jul. 31, 2023
PEN (S/)
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Dec. 31, 2022
PEN (S/)
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Dec. 28, 2022
USD ($)
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Dec. 28, 2022
PEN (S/)
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Nov. 30, 2022
USD ($)
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Nov. 30, 2022
PEN (S/)
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Dec. 14, 2020
USD ($)
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Dec. 14, 2020
PEN (S/)
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Dec. 20, 2019
USD ($)
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Dec. 20, 2019
PEN (S/)
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May 17, 2019
USD ($)
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May 17, 2019
PEN (S/)
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Dec. 31, 2018
USD ($)
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Dec. 31, 2018
PEN (S/)
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Dec. 31, 2015
PEN (S/)
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Dec. 31, 2014
USD ($)
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Dec. 31, 2014
PEN (S/)
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Dec. 31, 2012
USD ($)
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Dec. 31, 2012
PEN (S/)
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| Disclosure of Commitments and contingencies [Line Items] |
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| Contingent liability |
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$ 20,500,000
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$ 20,500,000
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S/ 6,087,000
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$ 12,249,000
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| Reserve applied against payments for disputed tax assessments |
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178,500,000
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178,500,000
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| Net receivable from disputed tax assessments |
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292,300,000
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292,300,000
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$ 275,300,000
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| Finance costs |
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87,129,000
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65,397,000
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$ 119,254,000
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| Sociedad Minera Cerro Verde S.A.A. |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Income tax payable |
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2,369,000
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2,369,000
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16,215,000
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| Disputed tax assessments paid |
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470,800,000
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470,800,000
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| Reserve applied against payments for disputed tax assessments |
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178,500,000
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178,500,000
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| Net receivable from disputed tax assessments |
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292,300,000
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292,300,000
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275,300,000
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| Finance costs |
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7,495,000
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9,552,000
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67,118,000
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| Open tax procedure | SUNAT. |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Declared tax deductions not recognized | S/ |
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S/ 3,648,000
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| Collection of debt forced amount |
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$ 35,814,000
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S/ 120,262,000
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| Appeal Proceedings Provision for collection of Doubtful Debt and Unfounded Income Case [Member] |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Provision for collection of doubtful debts |
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$ 19,781,000
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S/ 66,623,000
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| Provision for tax Dispute related to the amortization of the contractual rights |
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19,781,000
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66,623,000
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| Legal Proceedings [Member] |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Contingent liability |
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19,800,000
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19,800,000
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15,200,000
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| Legal Proceedings, Tax [Member] |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Contingent liability |
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2,900,000
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2,900,000
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$ 1,900,000
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| Tax Year 2021 | Open tax procedure | SUNAT. |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Tax assessment value |
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2,504,000
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2,504,000
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8,409,000
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| Carry forward tax losses questioned |
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86,262,000
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S/ 290,530,000
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$ 86,262,000
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S/ 290,530,000
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| Year 2020 [Member] | SUNAT. |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Tax assessment value |
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$ 80,000
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S/ 269,000
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| Year 2020 [Member] | Open tax procedure | SUNAT. |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Tax assessment value |
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1,487,000
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1,487,000
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5,392,000
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| Carry forward tax losses questioned |
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$ 70,242,000
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$ 70,242,000
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S/ 236,576,000
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| Tax year 2009 and 2010 | Open tax procedure | SUNAT. |
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| Disclosure of Commitments and contingencies [Line Items] |
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|
|
| Declared tax deductions not recognized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 22,572,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
S/ 76,023,000
|
|
|
|
|
| Compensation of tax losses |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 166,793,000
|
S/ 561,758,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Year 2014 [Member] | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Tax assessment value |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 37,054,264
|
S/ 11,001,860
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Year 2014 [Member] | Open tax procedure | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Declared tax deductions not recognized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 28,176,000
|
S/ 94,898,000
|
|
|
|
|
|
| Ifrs Tax Year 2018 [Member] | Open tax procedure | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Contingent liability | S/ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
S/ 5,954,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Declared tax deductions not recognized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 20,054,000
|
|
|
|
|
|
$ 21,882,000
|
S/ 73,700,000
|
|
|
|
$ 21,882,000
|
S/ 73,700,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Ifrs Tax Year 2019 [Member] | Open tax procedure | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Tax assessment value |
|
|
|
$ 1,487,000
|
|
|
|
|
|
|
|
|
|
|
|
$ 1,487,000
|
|
|
|
|
|
|
|
S/ 4,994,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carry forward tax losses questioned |
|
|
|
|
|
|
$ 66,683,000
|
S/ 224,588,000
|
|
|
|
$ 66,683,000
|
S/ 224,588,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Year 2007 [Member] | Open tax procedure | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Declared tax deductions not recognized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 313,361,000
|
S/ 1,056,310,000
|
| Year 2008 [Member] | Open tax procedure | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Declared tax deductions not recognized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 454,568,000
|
S/ 1,530,985,000
|
|
|
| Year 2009 [Member] | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Collection of debt forced amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 5,709,000
|
S/ 19,171,000
|
|
|
|
|
|
|
|
|
|
|
|
| Rio Seco |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Collection of debt forced amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 3,229,000
|
S/ 11,153,000
|
|
|
|
|
|
|
|
| Rio Seco | Omission of Payment of General Sales Tax [Member] | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Contingent liability |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 539,000
|
S/ 1,815,000
|
| Rio Seco | Year 2020 [Member] | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Contingent liability |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
S/ 2,882,000
|
|
|
$ 858,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Declared tax deductions not recognized |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 4,726,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
S/ 15,917,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Depreciation questioned |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 4,934,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Minera La Zanja S.R.L | Tax Year 2021 | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Depreciation questioned |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,946,000
|
S/ 14,876,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carry forward tax losses questioned |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,497,000
|
S/ 9,413,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Minera La Zanja S.R.L | Tax year 2013 and 2015 | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disallowance of development cost |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 911,000
|
S/ 3,060,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Minera La Zanja S.R.L | Ifrs Tax Year 2018 [Member] | Open tax procedure | SUNAT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Disclosure of Commitments and contingencies [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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| Declared tax deductions not recognized |
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$ 185,000
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S/ 624,000
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| Minera La Zanja S.R.L | Ifrs Tax Year 2019 [Member] |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Tax assessment value |
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$ 1,932,000
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$ 1,932,000
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S/ 6,507,000
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| Disputed tax assessments paid |
$ 1,350,000
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S/ 4,533,000
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| Tax assessment paid recorded in profit and loss |
805,000
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S/ 2,712,000
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| Net receivable from disputed tax assessments |
$ 542,000
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S/ 1,821,000
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| Sindicato Minero de Orcopampa S.A., note 30(b) |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Concessions lease percent |
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10.00%
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| Minimum | Sociedad Minera Cerro Verde S.A.A. |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Royalty rate on net sales |
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|
1.00%
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| Maximum | Sociedad Minera Cerro Verde S.A.A. |
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| Disclosure of Commitments and contingencies [Line Items] |
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| Royalty rate on net sales |
|
|
3.00%
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