v3.26.1
INVESTMENTS - Investments in Associates and Joint Ventures (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2025
BRL (R$)
Dec. 31, 2025
BRL (R$)
€ / shares
Dec. 31, 2024
BRL (R$)
Dec. 31, 2024
BRL (R$)
€ / shares
Dec. 31, 2023
BRL (R$)
Dec. 31, 2022
BRL (R$)
Disclosure of joint ventures [line items]              
Equity   R$ 43,952,173,000 R$ 43,952,173,000 R$ 32,415,575,000 R$ 32,415,575,000 R$ 44,810,300,000 R$ 33,166,365,000
Income (expenses) of the year   R$ 13,437,687,000   (7,044,706,000)   14,106,381,000  
% 100.00% 100.00%          
In the income (expenses) for the year   R$ (380,318,000)   (13,845,000)      
Goodwill   29,384,000 29,384,000 225,486,000 225,486,000    
Total Investments, including Goodwill and Financial Instruments   1,194,877,000 1,194,877,000 1,816,923,000 1,816,923,000    
Realization of exchange variation on investments abroad   (23,656,000)     471,000  
Impairment of subsidiaries   (88,871,000)      
Other Operating Income (Expense) from Disposal of Property, Plant and Equipment and Biological Assets   386,396,000   163,033,000   331,285,000  
Loss from associates and joint ventures   R$ (409,212,000)   (13,845,000)   R$ (19,379,000)  
Disclosure of Detailed Information About Investment in Associates and Joint Ventures  
Information of investees as at
Company Participation
12/31/2025Carrying amountIn the income (expenses) for the year
EquityIncome (expenses) of the yearParticipation equity (%)12/31/202512/31/202412/31/202512/31/2024
Associate
Foreign
Ensyn Corporation (3)
(25,295)
(36,992)
24.80 
%
 
2 
4,657 
(6,966)
Spinnova Plc. (1)
289,950 
(217,242)
18.76 
%
54,391 
95,254 
(40,714)
(19,690)
Simplifyber, Inc.
56,145 
(10,604)
14.20 
%
7,973 
30,060 
(1,506)
Allotrope Energy Ltd
20.00 
%
556 
62,920 
125,316 
(37,563)
(26,656)
Joint ventures
Domestic (Brazil)
Biomas - Serviços Ambientais, Restauração e Carbono Ltda.
23,678 
(40,506)
16.66 
%
3,945 
2,923 
(6,476)
(4,875)
Ibema Companhia Brasileira de Papel
395,675 
32,526 
49.90 
%
197,442 
193,901 
16,230 
37,199 
Foreign
F&E Technologies LLC (3)
(3,797)
 
 
%
 
6,378 
(4,041)
 
Woodspin Oy (2)
243,467 
 
 
%
 
124,853 
(124,372)
(19,513)
201,387 
328,055 
(118,659)
12,811 
Other investments evaluated at fair value through other comprehensive income
Bem Agro Integração e Desenvolvimento S.A.
5.82 
%
3,581 
4,026 
 
Celluforce Inc.
8.28 
%
25,975 
27,823 
Nfinite Nanotechnology Inc.
4.90 
%
5,639 
6,347 
 
Lenzing Aktiengesellschaft
15.00 
%
865,986 
1,099,870 
 
901,181 
1,138,066 
 
 
Goodwill (2)(3)
29,389 
225,486 
(224,096)
29,389 
225,486 
(224,096)
1,194,877 
1,816,923 
(380,318)
(13,845)
(1)The average share price quoted on the Nasdaq First North Growth Market (NFNGM) was EUR0.61 on December 31, 2025 and EUR0.95 on December 31, 2024.
(2)In August 2025, the Company completed the sale of its entire equity interest in Woodspin Oy and Suzano Finland Oy to Spinnova Plc for the symbolic amount of 1 euro each. For the year ended December 31, 2025, as a result of this transaction, the following accounting effects were recognized, which significantly impacted the equity pickup line: R$ (117,447) related to the impairment of the investment, R$ (28,679) related to the obligation to make an additional capital contribution, and R$ 15,636 related to the realization of other comprehensive income of the joint venture Woodspin Oy; R$ (63,634) related to the write-off of goodwill of the associate Spinnova Plc; and R$ (88,871) related to the impairment of the investment in the subsidiary Suzano Finland Oy.
(3)In November 2025, the Company sold its entire equity interest in Ensyn Corporation, liquidated F&E Technologies LLC, and recognized impairment of the investment in F&E Tecnologia do Brasil S.A., both related to the same technology developed by Ensyn. As of December 31, 2025, as a result of this transaction, the following accounting effects were recognized, which impacted the equity pickup line: (i) R$ (160,462) related to the write-off of Ensyn goodwill; R$ 371 related to the recognition of the provision for losses on investments; and R$$9,896 related to the reclassification of other comprehensive income.
          
Associate | Foreign market              
Disclosure of joint ventures [line items]              
Investments Accounted for Using Equity Method, Excluding Goodwill   R$ 62,920,000 62,920,000 125,316,000 125,316,000    
In the income (expenses) for the year   (37,563,000)   (26,656,000)      
Ensyn Corporation              
Disclosure of joint ventures [line items]              
Realization of exchange variation on investments abroad   9,896,000          
Loss from associates and joint ventures   (160,462,000)          
Provision for losses on investments   R$ 371,000 371,000        
Ensyn Corporation | Foreign market              
Disclosure of joint ventures [line items]              
Participation equity (%)   24.80%          
Investments Accounted for Using Equity Method, Excluding Goodwill   2,000 2,000    
In the income (expenses) for the year   4,657,000   (6,966,000)      
Spinnova Plc              
Disclosure of joint ventures [line items]              
Impairment of subsidiaries   (63,634,000)          
Spinnova Plc | Component Of Other Operating Expenses Related To SPA ClosingConditions              
Disclosure of joint ventures [line items]              
Other Operating Income (Expense) from Disposal of Property, Plant and Equipment and Biological Assets   R$ (28,679,000)          
Spinnova Plc | Foreign market              
Disclosure of joint ventures [line items]              
Participation equity (%)   18.76%          
Investments Accounted for Using Equity Method, Excluding Goodwill   R$ 54,391,000 54,391,000 95,254,000 95,254,000    
In the income (expenses) for the year   R$ (40,714,000)   (19,690,000)      
Simplifyber, Inc. (Indirect) | Foreign market              
Disclosure of joint ventures [line items]              
Participation equity (%)   14.20%          
Investments Accounted for Using Equity Method, Excluding Goodwill   R$ 7,973,000 7,973,000 30,060,000 30,060,000    
In the income (expenses) for the year   R$ (1,506,000)          
Allotrope Energy Ltd [Member] | Foreign market              
Disclosure of joint ventures [line items]              
Participation equity (%)   20.00%          
Investments Accounted for Using Equity Method, Excluding Goodwill   R$ 556,000 556,000        
Joint ventures              
Disclosure of joint ventures [line items]              
Investments Accounted for Using Equity Method, Excluding Goodwill   201,387,000 201,387,000 328,055,000 328,055,000    
In the income (expenses) for the year   R$ (118,659,000)   12,811,000      
Biomas | Domestic market (Brazil)              
Disclosure of joint ventures [line items]              
Participation equity (%)   16.66%          
Investments Accounted for Using Equity Method, Excluding Goodwill   R$ 3,945,000 3,945,000 2,923,000 2,923,000    
In the income (expenses) for the year   R$ (6,476,000)   (4,875,000)      
Ibema Companhia Brasileira de Papel | Domestic market (Brazil)              
Disclosure of joint ventures [line items]              
Participation equity (%)   49.90%          
Investments Accounted for Using Equity Method, Excluding Goodwill   R$ 197,442,000 197,442,000 193,901,000 193,901,000    
In the income (expenses) for the year   R$ 16,230,000   37,199,000      
F&E Technologies LLC | Foreign market              
Disclosure of joint ventures [line items]              
Participation equity (%)            
Investments Accounted for Using Equity Method, Excluding Goodwill   6,378,000 6,378,000    
In the income (expenses) for the year   (4,041,000)        
Woodspin Oy              
Disclosure of joint ventures [line items]              
Share Of Profit Loss Of Investments Accounted For Using Equity Method   (117,447,000)          
Realization of exchange variation on investments abroad   R$ 15,636          
Woodspin Oy | Foreign market              
Disclosure of joint ventures [line items]              
Participation equity (%)            
Investments Accounted for Using Equity Method, Excluding Goodwill   124,853,000 124,853,000    
In the income (expenses) for the year   (124,372,000)   (19,513,000)      
Total other investments evaluated at fair value              
Disclosure of joint ventures [line items]              
In the income (expenses) for the year          
Non-current financial assets at fair value through other comprehensive income   R$ 901,181,000 901,181,000 1,138,066,000 1,138,066,000    
Bem Agro Integração e Desenvolvimento S.A. (Indirect)              
Disclosure of joint ventures [line items]              
%   5.82%          
Bem Agro Integração e Desenvolvimento S.A. (Indirect) | Domestic market (Brazil)              
Disclosure of joint ventures [line items]              
Non-current financial assets at fair value through other comprehensive income   R$ 3,581,000 3,581,000 4,026,000 4,026,000    
Celluforce Inc. (Direct)              
Disclosure of joint ventures [line items]              
%   8.28%          
Celluforce Inc. (Direct) | Foreign market              
Disclosure of joint ventures [line items]              
Non-current financial assets at fair value through other comprehensive income   R$ 25,975,000 25,975,000 27,823,000 27,823,000    
Nfinite Nanotechnology Inc. (Indirect)              
Disclosure of joint ventures [line items]              
%   4.90%          
Nfinite Nanotechnology Inc. (Indirect) | Foreign market              
Disclosure of joint ventures [line items]              
Non-current financial assets at fair value through other comprehensive income   R$ 5,639,000 5,639,000 6,347,000 6,347,000    
Lenzing Aktiengesellschaft (Indirect)              
Disclosure of joint ventures [line items]              
%   15.00%          
Lenzing Aktiengesellschaft (Indirect) | Foreign market              
Disclosure of joint ventures [line items]              
Non-current financial assets at fair value through other comprehensive income   R$ 865,986,000 865,986,000 1,099,870,000 1,099,870,000    
Suzano Ventures e Suzano S/A              
Disclosure of joint ventures [line items]              
Goodwill   29,389,000 29,389,000 225,486,000 225,486,000    
Impairment of subsidiaries   (224,096,000)          
Total Goodwill              
Disclosure of joint ventures [line items]              
Goodwill   29,389,000 29,389,000 R$ 225,486,000 R$ 225,486,000    
Impairment of subsidiaries   (224,096,000)          
Ensyn Corporation              
Disclosure of joint ventures [line items]              
Equity   (25,295,000) (25,295,000)        
Income (expenses) of the year   (36,992,000)          
Spinnova Plc              
Disclosure of joint ventures [line items]              
Equity   289,950,000 R$ 289,950,000        
Income (expenses) of the year   (217,242,000)          
NASDAQ, Nordic Growth Market, Average Share Price | € / shares     R$ 0.61   R$ 0.95    
Biomas | Domestic market (Brazil)              
Disclosure of joint ventures [line items]              
Equity   23,678,000 R$ 23,678,000        
Income (expenses) of the year   (40,506,000)          
Ibema Companhia Brasileira de Papel | Domestic market (Brazil)              
Disclosure of joint ventures [line items]              
Equity   395,675,000 395,675,000        
Income (expenses) of the year   32,526,000          
F&E Technologies LLC | Foreign market              
Disclosure of joint ventures [line items]              
Equity   (3,797,000) (3,797,000)        
Income (expenses) of the year            
Woodspin Oy | Foreign market              
Disclosure of joint ventures [line items]              
Equity   243,467,000 243,467,000        
Income (expenses) of the year            
Simplifyber, Inc. (Indirect)              
Disclosure of joint ventures [line items]              
Equity   56,145,000 R$ 56,145,000        
Income (expenses) of the year   R$ (10,604,000)