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COMMITMENTS AND CONTINGENCIES: - Others (Details) S/ in Millions |  | 1 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 20, 2020 MWh | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2018 USD ($) T | May 31, 2016 MW | Jul. 31, 2014 MW | Jun. 30, 2014 MW | Sep. 30, 2024 USD ($) item | Sep. 30, 2024 PEN (S/) item | Sep. 30, 2024 PEN (S/)
Other commitments: |  |  |  |  |  |  |  |  |  |
Commitment for capital projects |  |  |  |  |  |  |  | $ 257,600,000 |  |
Michiquillay |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Pre-operational period |  | 12 years |  |  |  |  |  |  |  |
Extended pre-operational period |  | 3 years |  |  |  |  |  |  |  |
Investment in projects in next five years |  | $ 20,000,000 |  |  |  |  |  |  |  |
Advancement of the project |  |  |  |  |  |  |  | 30.00% |  | 30.00%
Number of meters drilled | item |  |  |  |  |  |  |  | 120,923 | 120,923 |
Number of core samples obtained |  |  |  |  |  |  |  | 39,234 |  |
Period of investment in projects |  | 5 years |  |  |  |  |  |  |  |
Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | $ 5,100,000 | S/ 445.0 |
Commitment liability recorded in the balance sheet |  |  |  |  |  |  |  | 28,500,000 |  |
Amount committed to funding for social and infrastructure improvement projects | S/ |  |  |  |  |  |  |  |  | 18.8 |
Development Fund Moquegua Region | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | $ 269,300,000 | S/ 1,000.0 |
Number of schools agreed for construction. | item |  |  |  |  |  |  |  | 3 | 3 |
Amount committed to funding for school projects |  |  |  |  |  |  |  | $ 4,900,000 | S/ 18.2 |
Amount committed for funding social and infrastructure improvement projects, build tracks and sidewalks |  |  |  |  |  |  |  | 1,900,000 | 7.0 |
Copper | Michiquillay | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Contingent contractual obligation |  |  |  | $ 400,000,000 |  |  |  |  |  |
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 |  |  | $ 12,500,000 | $ 12,500,000 |  |  |  |  |  |
Remaining amount to pay if project is developed |  |  | $ 375,000,000.0 |  |  |  |  |  |  |
Funding for Different Projects | Development Fund Moquegua Region | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 67,700,000 | 251.5 |
Educational Project | Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 119,800,000 |  |
Educational Project | Development Fund Moquegua Region | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 29,200,000 | 108.4 |
Amount of investment in project |  |  |  |  |  |  |  | 28,700,000 |  | S/ 106.7
Agricultural Projects | Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 30,200,000 | 112.0 |
Agricultural Projects | Development Fund Moquegua Region | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed for funding social and infrastructure improvement projects, build tracks and sidewalks |  |  |  |  |  |  |  | 3,300,000 | 12.4 |
Construction of Cularjahuira Dam | Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 4,200,000 | 15.6 |
Study Of Engineering For Collazas Dam | Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 700,000 | 2.6 |
Infrastructure Projects | Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 16,300,000 | 60.4 |
Water Treatment | Development Fund Moquegua Region | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | $ 28,400,000 | S/ 105.5 |
Percentage of progress on construction |  |  |  |  |  |  |  | 48.00% | 48.00% |
Drinking Water Project | Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | $ 2,600,000 | S/ 9.6 |
Works For Taxes | Toquepala Concentrator Expansion | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects | S/ |  |  |  |  |  |  |  |  | 102.1 |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | 27,500,000 |  |
Works For Taxes | Development Fund Moquegua Region | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed to funding for social and infrastructure improvement projects |  |  |  |  |  |  |  | $ 61,400,000 | S/ 227.9 |
Number of Infrastructure Projects Agreed for Construction | item |  |  |  |  |  |  |  | 5 | 5 |
Amount financed per-investment studies for basic sanitation |  |  |  |  |  |  |  | $ 100,000 | S/ 0.3 |
Works For Taxes | Apurimac Region |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Number of schools agreed for construction. | item |  |  |  |  |  |  |  | 2 | 2 |
Amount committed to funding for school projects |  |  |  |  |  |  |  | $ 22,500,000 | S/ 83.7 |
Works For Taxes | Arequipa Region |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Number of schools agreed for construction. | item |  |  |  |  |  |  |  | 2 | 2 |
Amount committed to funding for school projects |  |  |  |  |  |  |  | $ 29,500,000 | S/ 109.5 |
amount committed to Finance for past infrastructure project |  |  |  |  |  |  |  | 1,700,000 | 6.3 |
Works For Taxes | Cajamarca Region |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Amount committed for funding health projects |  |  |  |  |  |  |  | $ 200,000 | S/ 0.7 |
Electroperu S.A | Power purchase agreements | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Purchase agreement, contracted power capacity (in megawatts) | MW |  |  |  |  |  |  | 120 |  |  |
Term of power purchase agreement related to sale of power plant |  |  |  |  |  |  | 20 years |  |  |
Parque Eolico de Fenicias, S. de R.L. de C.V | Power purchase agreements | Mexico |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |
Kallpa | Power purchase agreements | Peru |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Purchase agreement, contracted power capacity (in megawatts) | MW |  |  |  |  |  | 120 |  |  |  |
Term of power purchase agreement related to sale of power plant |  |  |  |  |  | 10 years |  |  |  |
Kallpa | Power purchase agreements | Peru | Maximum |  |  |  |  |  |  |  |  |  |
Other commitments: |  |  |  |  |  |  |  |  |  |
Purchase agreement, contracted power capacity (in megawatts) | MW |  |  |  |  | 80 |  |  |  |  |

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