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Other financial instruments (Details 4) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Balance at the beginning of the year $ (19,565) $ (21,833)
Changes in fair value (3,347) 2,268
Deliveries of copper concentrates
Price cap realized 3,246
Balance at the end of the year (19,666) (19,565)
Notional [Member]    
IfrsStatementLineItems [Line Items]    
Balance at the beginning of the year 27,562 30,810
Changes in fair value
Deliveries of copper concentrates (5,274) (3,248)
Price cap realized
Balance at the end of the year $ 22,288 $ 27,562