v3.25.4
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT (Details 4)
R$ in Thousands
 12 Months Ended
Dec. 31, 2025
BRL (R$)
Probable  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro R$ 2,188
Net exposure in us dollars hedge short position (1,582)
Net exposure in copper risk 0
Net exposure in IPCA 0
Net exposure in IPCA in Euribor drop risk 0
Net exposure in hedge CDI position (28,462)
Total net exposure in each scenario (27,856)
Net effect on changes in current fair value 0
Probable | Hedge (assets position) derivatives depreciation risk in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 141,493
Probable | Debt appreciation risk for payables in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro (140,174)
Probable | Debt depreciation risk for receivables in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 869
Probable | Hedge (assets position) derivatives depreciation risk in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position 351,379
Probable | Debt appreciation risk for payables in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position (432,197)
Probable | Debt depreciation risk for receivables in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position 79,236
Probable | Copper Hedge (liabilities position) derivatives of High Copper risk  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in copper risk (72,868)
Probable | Debt risk of a fall in copper prices  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in copper risk 72,868
Probable | Hedge (assets position) derivatives risk of decrease risk in IPCA  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA 37,528
Probable | Debt risk of increase in IPCA  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA (37,528)
Probable | Hedge (active position) derivatives risk of Euribor drop  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA in Euribor drop risk 5,956
Probable | Debt risk of euribor increase  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA in Euribor drop risk (5,956)
Probable | Hedge US$ and Euro (liabilities position) derivative risk decrease in CDI  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in hedge CDI position 3,721
Probable | Hedge IPCA (liabilities position) derivatives risk of increase in CDI  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in hedge CDI position (32,183)
25% depreciation  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 2,735
Net exposure in us dollars hedge short position (1,977)
Net exposure in copper risk 0
Net exposure in IPCA 0
Net exposure in IPCA in Euribor drop risk 0
Net exposure in hedge CDI position (36,500)
Total net exposure in each scenario (35,742)
Net effect on changes in current fair value (7,886)
25% depreciation | Hedge (assets position) derivatives depreciation risk in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 176,866
25% depreciation | Debt appreciation risk for payables in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro (175,217)
25% depreciation | Debt depreciation risk for receivables in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 1,086
25% depreciation | Hedge (assets position) derivatives depreciation risk in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position 439,224
25% depreciation | Debt appreciation risk for payables in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position (540,246)
25% depreciation | Debt depreciation risk for receivables in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position 99,045
25% depreciation | Copper Hedge (liabilities position) derivatives of High Copper risk  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in copper risk (91,084)
25% depreciation | Debt risk of a fall in copper prices  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in copper risk 91,084
25% depreciation | Hedge (assets position) derivatives risk of decrease risk in IPCA  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA 25,925
25% depreciation | Debt risk of increase in IPCA  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA (25,925)
25% depreciation | Hedge (active position) derivatives risk of Euribor drop  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA in Euribor drop risk 7,445
25% depreciation | Debt risk of euribor increase  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA in Euribor drop risk (7,445)
25% depreciation | Hedge US$ and Euro (liabilities position) derivative risk decrease in CDI  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in hedge CDI position 3,728
25% depreciation | Hedge IPCA (liabilities position) derivatives risk of increase in CDI  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in hedge CDI position (40,228)
50% depreciation  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 3,283
Net exposure in us dollars hedge short position (2,373)
Net exposure in copper risk 0
Net exposure in IPCA 0
Net exposure in IPCA in Euribor drop risk 0
Net exposure in hedge CDI position (44,537)
Total net exposure in each scenario (43,627)
Net effect on changes in current fair value (15,771)
50% depreciation | Hedge (assets position) derivatives depreciation risk in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 212,239
50% depreciation | Debt appreciation risk for payables in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro (210,260)
50% depreciation | Debt depreciation risk for receivables in Euro  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in euro 1,304
50% depreciation | Hedge (assets position) derivatives depreciation risk in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position 527,069
50% depreciation | Debt appreciation risk for payables in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position (648,296)
50% depreciation | Debt depreciation risk for receivables in US dollars  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in us dollars hedge short position 118,854
50% depreciation | Copper Hedge (liabilities position) derivatives of High Copper risk  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in copper risk (136,627)
50% depreciation | Debt risk of a fall in copper prices  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in copper risk 136,627
50% depreciation | Hedge (assets position) derivatives risk of decrease risk in IPCA  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA 16,072
50% depreciation | Debt risk of increase in IPCA  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA (16,072)
50% depreciation | Hedge (active position) derivatives risk of Euribor drop  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA in Euribor drop risk 11,168
50% depreciation | Debt risk of euribor increase  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in IPCA in Euribor drop risk (11,168)
50% depreciation | Hedge US$ and Euro (liabilities position) derivative risk decrease in CDI  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in hedge CDI position 3,737
50% depreciation | Hedge IPCA (liabilities position) derivatives risk of increase in CDI  
FINANCIAL INSTRUMENTS AND RISK AND CAPITAL MANAGEMENT  
Net exposure in hedge CDI position R$ (48,274)