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v3.25.3

COMMITMENTS AND CONTINGENCIES: - Others (Details) S/ in Millions, $ in Millions |  | 1 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 20, 2020 MWh | Apr. 30, 2025 USD ($) | Jun. 30, 2022 | Jun. 30, 2021 USD ($) | Jun. 30, 2018 USD ($) T | May 31, 2016 MW | Jul. 31, 2014 MW | Jun. 30, 2014 MW | Sep. 30, 2025 USD ($) item | Sep. 30, 2025 PEN (S/) item | Sep. 30, 2025 PEN (S/)
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Commitment for capital projects | $ |  |  |  |  |  |  |  |  | $ 1,026.3 |  |
Peru | Power purchase agreements | Electroperu S.A |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Purchase agreement, contracted power capacity (in megawatts) | MW |  |  |  |  |  |  |  | 120 |  |  |
Term of power purchase agreement related to sale of power plant |  |  |  |  |  |  |  | 20 years |  |  |
Peru | Power purchase agreements | Kallpa |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Purchase agreement, contracted power capacity (in megawatts) | MW |  |  |  |  |  |  | 120 |  |  |  |
Term of power purchase agreement related to sale of power plant |  |  |  |  |  |  | 10 years |  |  |  |
Peru | Power purchase agreements | Kallpa | Maximum |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Purchase agreement, contracted power capacity (in megawatts) | MW |  |  |  |  |  | 80 |  |  |  |  |
Mexico | Power purchase agreements | Parque Eolico de Fenicias, S. de R.L. de C.V |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Term of power purchase agreement related to sale of power plant | 20 years |  |  |  |  |  |  |  |  |  |
Purchase agreement, contracted power capacity (in megawatts per year) | MWh | 611,400 |  |  |  |  |  |  |  |  |  |
Michiquillay |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Pre-operational period |  |  | 12 years |  |  |  |  |  |  |  |
Extended pre-operational period |  |  | 3 years |  |  |  |  |  |  |  |
Michiquillay | Peru | Copper |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Contingent contractual obligation | $ |  |  |  |  | $ 400.0 |  |  |  |  |  |
Estimated mineralized material (in tons) | T |  |  |  |  | 2,288,000,000 |  |  |  |  |  |
Copper grade percentage |  |  |  |  | 0.43% |  |  |  |  |  |
Annual production (in tons) | T |  |  |  |  | 225,000 |  |  |  |  |  |
Initial mine life |  |  |  |  | 25 years |  |  |  |  |  |
Contractual obligation paid on project | $ |  |  |  | $ 12.5 | $ 12.5 |  |  |  |  |  |
Remaining amount to pay if project is developed | $ |  | $ 375.0 |  | $ 375.0 |  |  |  |  |  |  |
Extended pre-operational period |  | 3 years |  |  |  |  |  |  |  |  |
Investment in projects in next five years | $ |  |  |  |  |  |  |  |  | $ 20.0 |  |
Period of investment in projects |  |  |  |  |  |  |  |  | 5 years | 5 years |
Additional extended preoperational period |  | 3 years |  |  |  |  |  |  |  |  |
Amount of cash consideration required to pay | $ |  |  |  |  |  |  |  |  | $ 21.0 |  |
Additional amount committed for social investments and exploration programs between 4th and 6th years of preoperational period | $ |  |  |  |  |  |  |  |  | 15.0 |  |
Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 128.0 | S/ 445.0 |
Commitment liability recorded in the balance sheet | $ |  |  |  |  |  |  |  |  | 29.4 |  |
Toquepala Concentrator Expansion | Peru | Educational Project |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 5.4 | 18.8 |
Toquepala Concentrator Expansion | Peru | Agricultural Projects |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 32.3 | 112.4 |
Toquepala Concentrator Expansion | Peru | Construction of Cularjahuira Dam |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 4.5 | 15.6 |
Toquepala Concentrator Expansion | Peru | Study of Engineering for Collazas Dam |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 0.7 | 2.6 |
Toquepala Concentrator Expansion | Peru | Infrastructure Projects |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 17.4 | 60.6 |
Toquepala Concentrator Expansion | Peru | Drinking Water Project |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 2.8 | 9.6 |
Toquepala Concentrator Expansion | Peru | Construction of a high-achievement school |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 29.4 | 102.1 |
Toquepala Concentrator Expansion | Peru | Works for Taxes |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | $ 19.5 | S/ 67.9 |
Number of infrastructure projects agreed for construction | item |  |  |  |  |  |  |  |  | 4 | 4 |
Development Fund Moquegua Region | Peru |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | $ 287.7 | S/ 1,000.0 |
Amount committed to funding for school projects |  |  |  |  |  |  |  |  | $ 5.2 | S/ 18.2 |
Number of schools agreed for construction | item |  |  |  |  |  |  |  |  | 3 | 3 |
Development Fund Moquegua Region | Peru | Educational Project |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | $ 31.3 | S/ 108.8 |
Amount of investment in project |  |  |  |  |  |  |  |  | $ 31.2 |  | S/ 108.4
Development Fund Moquegua Region | Peru | Agricultural Projects |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Number of infrastructure projects agreed for construction | item |  |  |  |  |  |  |  |  | 2 | 2 |
Amount of investment in project |  |  |  |  |  |  |  |  | $ 2.0 |  | S/ 6.9
Development Fund Moquegua Region | Peru | Works for Taxes |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | $ 65.6 | S/ 228.0 |
Number of infrastructure projects agreed for construction | item |  |  |  |  |  |  |  |  | 3 | 3 |
Number of basic sanitation project committed. | item |  |  |  |  |  |  |  |  | 1 | 1 |
Pre investment studies for road infrastructure |  |  |  |  |  |  |  |  | $ 1.1 | S/ 3.9 |
Development Fund Moquegua Region | Peru | Funding for Different Projects |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | 74.5 | 258.9 |
Development Fund Moquegua Region | Peru | Water Treatment |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  |  | $ 30.4 | S/ 105.5 |
Percentage of progress on construction |  |  |  |  |  |  |  |  | 58.00% | 58.00% |
Development Fund Moquegua Region | Peru | Scholarship funding |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for school projects |  |  |  |  |  |  |  |  | $ 1.6 | S/ 5.4 |
Number of schools Committed for scholarship | item |  |  |  |  |  |  |  |  | 2 | 2 |
Apurimac Region | Works for Taxes |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for school projects |  |  |  |  |  |  |  |  | $ 24.4 | S/ 84.7 |
Number of schools agreed for construction | item |  |  |  |  |  |  |  |  | 2 | 2 |
Arequipa Region | Works for Taxes |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed to funding for school projects |  |  |  |  |  |  |  |  | $ 31.7 | S/ 110.2 |
Number of schools agreed for construction | item |  |  |  |  |  |  |  |  | 2 | 2 |
Amount committed to Finance for past infrastructure project |  |  |  |  |  |  |  |  | $ 1.8 | S/ 6.3 |
Cajamarca Region | Works for Taxes |  |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Amount committed for funding health projects |  |  |  |  |  |  |  |  | $ 0.2 | S/ 0.7 |

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