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BASIS OF CONSOLIDATION AND INVESTMENTS (Details 2) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies R$ 547,570 R$ 431,562
Other adjustments Reclassification (99,279) (80,313)
Other adjustments others (243) (118)
Equity in results 448,048 351,131
MRS Logistica SA [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies 529,211 449,462
Transnordestina [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies (23,599) (23,568)
Arvedi Metalferdo Brasils [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies (231) (1,332)
Equimac S A [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies 9,282 5,311
Indirect Interest In Affiliates CEEEG [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies 44,049 50,757
Panatlantica S. A [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies 19,233  
Fair Value Amortizated [Member]    
IfrsStatementLineItems [Line Items]    
Equity in results of affiliated companies R$ (30,375) R$ (49,068)