v3.26.1
BIOLOGICAL ASSETS (Tables)
 12 Months Ended
Dec. 31, 2025
Disclosure of detailed information about biological assets [abstract]  
Disclosure of reconciliation of changes in biological assets
The roll-forward of biological assets is as set forth below:
12/31/202512/31/2024
Opening balance
22,283,001 
18,278,582 
Additions
7,913,483 
7,180,450 
Additions of merged companies
 
366,785 
Depletions
(5,352,271)
(4,831,916)
Transfers
15,233 
102,790 
Gain on fair value adjustments (Note 29)
1,516,458 
1,431,530 
Disposals
(107,815)
(130,922)
Write-offs
(170,925)
(114,298)
Closing balance
26,097,164 
22,283,001 
Schedule of Assumptions Used for Calculation of Fair Value of Biological Assets
The table below discloses the measurement of the premises adopted:
12/31/202512/31/2024
Useful productive planted area (hectare) eligible for fair value calculation
1,228,834
1,243,191
Mature assets (6 to 7 years)
173,476
191,737
Immature assets (1 to 5 years)
1,055,358
1,051,454
Average annual growth (IMA) – m3/hectare/year
37.46
37.62
Average gross sale price of eucalyptus – R$/m3
111.9
101.38
Discount rate (post-tax)
8.10
%
8.80
%
Disclosure of Gains Losses On Fair Value Adjustment Biological Assets
The pricing model considers the net cash flows, after the deduction of taxes on profit at the applicable rates.
12/31/202512/31/2024
Physical changes and discount rate (1)
325,445
609,259
Price of wood
1,191,013
822,271
1,516,458
1,431,530
(1) Includes the variation of indicators: IMA, discount rate and area.