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v3.23.1

Property, plant, equipment and development costs - Estimates prices for the current and long-term periods (Details) | Dec. 31, 2022 $ / oz $ / t | Dec. 31, 2021 $ / oz $ / t
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Less than 1 year | Gold per ounce [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | $ / oz | 1,750 | 1,700
Less than 1 year | Silver [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | $ / oz | 21.00 | 24.00
Less than 1 year | Copper [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | 7,900 | 8,500
Less than 1 year | Lead [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | 1,900 | 2,000
Less than 1 year | Zinc [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | 3,000 | 2,600
Between 1 and 2 years | Gold per ounce [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | $ / oz | 1,735 | 1,764
Between 1 and 2 years | Silver [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | $ / oz | 23.17 | 27.30
Between 1 and 2 years | Copper [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | 9,625 | 8,705
Between 1 and 2 years | Lead [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | 2,181 | 2,313
Between 1 and 2 years | Zinc [Member] |  |
Property, plant, equipment and development costs |  |
Commodity price estimates | 2,648 | 2,616

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