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Inventories
9 Months Ended
Sep. 30, 2025
Subclassifications of assets, liabilities and equities [abstract]  
Disclosure of inventories [text block]
8 INVENTORIES
09/30/202512/31/2024
Finished goods
Pulp
Domestic802,892 801,623 
Foreign2,049,974 1,510,985 
Paper
Domestic707,612 561,409 
Foreign478,441 362,027 
Work in process147,446 135,380 
Raw materials
Wood2,297,789 2,287,406 
Operating supplies and packaging1,100,597 1,098,894 
Spare parts and other1,475,399 1,302,534 
(-) Expected losses(104,209)(97,934)

8,955,941 7,962,324 
8.1 Roll-forward of expected losses
09/30/202512/31/2024
Opening balance(97,934)(95,053)
Additions(30,683)(83,705)
Reversals6,652 6,352 
Write-offs17,756 74,472 
Closing balance(104,209)(97,934)
On September 30, 2025 and 2024, there were no inventory items pledged as collateral.