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INVENTORIES - Balances (Details) - BRL (R$)
R$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
INVENTORIES    
Work in process R$ 93,964 R$ 96,140
Spare parts and other 843,469 678,983
Inventories 5,728,261 4,637,485
Pulp | Domestic (Brazil)    
INVENTORIES    
Finished goods 616,415 748,588
Pulp | Foreign    
INVENTORIES    
Finished goods 1,426,064 1,037,760
Paper | Domestic (Brazil)    
INVENTORIES    
Finished goods 358,973 315,068
Paper | Foreign    
INVENTORIES    
Finished goods 192,671 95,383
Wood    
INVENTORIES    
Raw materials 1,480,616 1,094,058
Operating supplies and packaging    
INVENTORIES    
Raw materials R$ 716,089 R$ 571,505