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SEGMENT INFORMATION - Goodwill based on expected future profitability (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pulp      
SEGMENT INFORMATION      
Goodwill based on expected future profitability   R$ 7,897,051 R$ 7,897,051
Paper      
SEGMENT INFORMATION      
Goodwill based on expected future profitability R$ 290,191 290,191  
Total      
SEGMENT INFORMATION      
Goodwill based on expected future profitability R$ 8,187,242 R$ 8,187,242