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CONSOLIDATED FINANCIAL STATEMENTS - Subsequent event (Details) - Disposal of interest in joint venture
Mar. 14, 2024
Feb. 01, 2024
Gerdau Metaldom Corp.    
CONSOLIDATED FINANCIAL STATEMENTS    
Ownership interest in joint venture agreed to sell   50.00%
Diaco S.A.    
CONSOLIDATED FINANCIAL STATEMENTS    
Ownership interest in joint venture agreed to sell 49.85%