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INVESTMENTS - Investments in associates and joint ventures (Details) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 BRL (R$) | Dec. 31, 2024 BRL (R$) € / shares | Dec. 31, 2023 BRL (R$) | Dec. 31, 2023 BRL (R$) € / shares | Dec. 31, 2022 BRL (R$) | Dec. 31, 2021 BRL (R$)
INVESTMENTS |  |  |  |  |  |
Equity | R$ 32,415,575 | R$ 32,415,575 | R$ 44,810,300 | R$ 44,810,300 | R$ 33,166,365 | R$ 15,175,130
Income (expenses) of the year | (7,044,706) |  | 14,106,381 |  | R$ 23,394,887 |
Company participation, in the income (expense) of the year | R$ (13,845) |  | R$ (19,379) |  |  |
Percentage of ownership interest in subsidiary | 100.00% |  | 100.00% |  |  |
Non-current financial assets at fair value through other comprehensive income | R$ 1,591,437 | 1,591,437 | R$ 379,126 | 379,126 |  |
Total for all associates | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Company participation, in equity | 125,316 | 125,316 | 96,123 | 96,123 |  |
Company participation, in the income (expense) of the year | R$ (26,656) |  | (32,557) |  |  |
Ensyn Corporation | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Participation equity (%), Associate | 24.80% |  |  |  |  |
Company participation, in equity | R$ 2 | 2 | 387 | 387 |  |
Company participation, in the income (expense) of the year | R$ (6,966) |  | (12,448) |  |  |
Spinnova Plc | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Participation equity (%), Associate | 18.77% |  |  |  |  |
Company participation, in equity | R$ 95,254 | 95,254 | 95,736 | 95,736 |  |
Company participation, in the income (expense) of the year | R$ (19,690) |  | (20,109) |  |  |
Simplifyber, Inc | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Participation equity (%), Associate | 13.91% |  |  |  |  |
Company participation, in equity | R$ 30,060 | 30,060 |  |  |  |
Total for all joint ventures |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Company participation, in equity | 328,055 | 328,055 | 259,397 | 259,397 |  |
Company participation, in the income (expense) of the year | R$ 12,811 |  | 13,178 |  |  |
Biomas | Domestic (Brazil) |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Participation equity (%), Joint venture | 16.66% |  |  |  |  |
Company participation, in equity | R$ 2,923 | 2,923 | 2,797 | 2,797 |  |
Company participation, in the income (expense) of the year | R$ (4,874) |  | (2,203) |  |  |
Ibema Companhia Brasileira de Papel | Domestic (Brazil) |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Participation equity (%), Joint venture | 49.90% |  |  |  |  |
Company participation, in equity | R$ 193,901 | 193,901 | 156,703 | 156,703 |  |
Company participation, in the income (expense) of the year | R$ 37,199 |  | 35,161 |  |  |
F&E Technologies LLC | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Participation equity (%), Joint venture | 50.00% |  |  |  |  |
Company participation, in equity | R$ 6,378 | 6,378 | 4,987 | 4,987 |  |
Company participation, in the income (expense) of the year |  |  |  |  |  |
Woodspin Oy | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Participation equity (%), Joint venture | 50.00% |  |  |  |  |
Company participation, in equity | R$ 124,853 | 124,853 | 94,910 | 94,910 |  |
Company participation, in the income (expense) of the year | R$ (19,514) |  | (19,780) |  |  |
Bem Agro Integração e Desenvolvimento S.A |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Percentage of ownership interest in subsidiary | 5.82% |  |  |  |  |
Bem Agro Integração e Desenvolvimento S.A | Domestic (Brazil) |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Non-current financial assets at fair value through other comprehensive income | R$ 4,026 | 4,026 |  |  |  |
Celluforce Inc. |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Percentage of ownership interest in subsidiary | 8.28% |  |  |  |  |
Celluforce Inc. | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Non-current financial assets at fair value through other comprehensive income | R$ 27,823 | 27,823 | 23,606 | 23,606 |  |
Nfinite Nanotechnology Inc. (Indirect) |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Percentage of ownership interest in subsidiary | 5.00% |  |  |  |  |
Nfinite Nanotechnology Inc. (Indirect) | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Non-current financial assets at fair value through other comprehensive income | R$ 6,347 | 6,347 |  |  |  |
Lenzing Aktiengesellschft |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Percentage of ownership interest in subsidiary | 15.00% |  |  |  |  |
Lenzing Aktiengesellschft | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Non-current financial assets at fair value through other comprehensive income | R$ 1,099,870 | 1,099,870 |  |  |  |
Total other investments evaluated at fair value |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Company participation, in the income (expense) of the year |  |  |  |  |  |
Non-current financial assets at fair value through other comprehensive income | 1,138,066 | 1,138,066 | R$ 23,606 | R$ 23,606 |  |
Ensyn Corporation |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Equity | 6 | 6 |  |  |  |
Income (expenses) of the year | (17,776) |  |  |  |  |
Spinnova Plc |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Equity | 507,482 | R$ 507,482 |  |  |  |
Income (expenses) of the year | (56,117) |  |  |  |  |
NASDAQ, nordic growth market, average share price | € / shares |  | R$ 0.95 |  | R$ 2.40 |  |
Biomas | Domestic (Brazil) |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Equity | 17,536 | R$ 17,536 |  |  |  |
Income (expenses) of the year | (30,151) |  |  |  |  |
Ibema Companhia Brasileira de Papel | Domestic (Brazil) |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Equity | 388,580 | 388,580 |  |  |  |
Income (expenses) of the year | 74,547 |  |  |  |  |
F&E Technologies LLC | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Equity | 12,756 | 12,756 |  |  |  |
Income (expenses) of the year |  |  |  |  |  |
Woodspin Oy | Foreign |  |  |  |  |  |
INVESTMENTS |  |  |  |  |  |
Equity | 249,706 | R$ 249,706 |  |  |  |
Income (expenses) of the year | R$ (38,665) |  |  |  |  |

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