v3.26.1
Other financial instruments (Details 3) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Other comprehensive (loss) income $ (5,150) $ (872)
Cost of sales (16,807) (33,063)
Net revenues 7,916 31,140
Other income and expenses, net 201 746
Realized (loss) gain 1,687 4,762
Net financial results 12,806 1,371
Hedging Programs For Concentrate [Member] | Zinc Forward [Member]    
IfrsStatementLineItems [Line Items]    
Other comprehensive (loss) income (6,481)  
Hedging Programs For Mismatches Of Quotation Periods [Member] | Zinc Forward [Member]    
IfrsStatementLineItems [Line Items]    
Other comprehensive (loss) income 1,331 (872)
Cost of sales (16,807) (33,063)
Net revenues 6,471 27,514
Other income and expenses, net 201 746
Realized (loss) gain 8,584 10,299
Hedging Programs For Sales Of Zinc At Fixed Price [Member] | Zinc Forward [Member]    
IfrsStatementLineItems [Line Items]    
Net revenues 1,445 3,626
Realized (loss) gain (1,132) (4,449)
Hedging Programs For Interest Rate Risk I C P A [Member] | Zinc Forward [Member]    
IfrsStatementLineItems [Line Items]    
Realized (loss) gain 343 148
Net financial results (554) 135
Hedging Programs For Interest Rate Risk E U R [Member] | Zinc Forward [Member]    
IfrsStatementLineItems [Line Items]    
Realized (loss) gain (6,108) (1,236)
Net financial results $ 13,360 $ 1,236