v3.26.1
Principles of consolidation (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Nexa Recursos Minerais SA NEXABR [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Directly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Mining / Smelting  
Nexa Resources Cajamarquilla SA NEXA CJM [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 99.91% 99.91%
Company controls Directly  
Headquarter Peru  
Functional currency US Dollar - USD  
Principal activities Smelting  
Nexa Resources US Inc [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Directly  
Headquarter United States  
Functional currency US Dollar – USD  
Principal activities Trading  
Exploraciones Chimborazo Metals And Mining [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Directly  
Headquarter Ecuador  
Functional currency US Dollar – USD  
Principal activities Holding and others  
L. D. O. S. P. E. Geracaode Energiae Participacoes Ltda [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Energy  
L.d.q.s.p.e. Empreendimentos E Participaes Ltda. [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Energy  
L.d.r.s.p.e. Empreendimentos E Participaes Ltda. [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Energy  
Mineracao Santa Maria Ltda [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00%  
Minerao Santa Maria Ltda. [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary   99.99%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Mining projects  
Pollarix S.A. [member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 33.33% 33.33%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Energy  
Karmin Holding Ltda [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real - BRL  
Principal activities Holding and others  
Mineracao Rio Aripuana Ltda [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Holding and others  
Votorantim Metals Canada Inc. [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter Canada  
Functional currency Canadian dollar – CAD  
Principal activities Holding and others  
Nexa Resources El Porvenir S.a.c. [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 99.99% 99.99%
Company controls Indirectly  
Headquarter Peru  
Functional currency US Dollar – USD  
Principal activities Mining  
Nexa Resources Peru S.A.A. [member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 83.37% 83.37%
Company controls Indirectly  
Headquarter Peru  
Functional currency US Dollar – USD  
Principal activities Mining  
Votorantim Internacional C S C S A C [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00%  
Company controls Indirectly  
Headquarter Peru  
Functional currency US Dollar – USD  
Principal activities Others  
Nexa Resources Atacocha S.a.a. [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 83.00% 86.65%
Company controls Indirectly  
Headquarter Peru  
Functional currency US Dollar – USD  
Principal activities Mining  
Nexa Resources Uk Ltd.nexa Uk [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter United Kingdom  
Functional currency US Dollar – USD  
Principal activities Mining  
Nexa Energy Comercializadorade Energia Ltda [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 100.00% 100.00%
Company controls Indirectly  
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Energy  
Campos Novos Energia S.a. [Member]    
IfrsStatementLineItems [Line Items]    
Percentage of shares in subsidiary 22.44% 22.44%
Headquarter Brazil  
Functional currency Real – BRL  
Principal activities Energy