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PROVISION FOR JUDICIAL LIABILITIES - Additional information (Details) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2009 BRL (R$) | Dec. 31, 2020 BRL (R$) ha lawsuit | Oct. 05, 2020 BRL (R$) | Dec. 31, 2019 BRL (R$)
Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Number of lawsuits deemed possible loss |  | 782 |  |
Provisions for possible losses |  | R$ 7,145,147,000 |  |
Labor |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Number of lawsuits in which the Company is a defendant | lawsuit |  | 1,653 |  |
Provisions for possible losses |  | R$ 263,971,000 |  |
Civil and environment |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Number of lawsuits in which the Company is a defendant | lawsuit |  | 324 |  |
Provisions for possible losses |  | R$ 3,068,884,000 |  |
Lawsuit dispute period |  | 30 years |  |
Income tax assessment - IRPJ/CSLL - Swap of industrial and forestry assets | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Provisions for possible losses |  | R$ 2,296,032,000 |  | R$ 2,251,462,000
Income tax assessment - IRPJ/CSLL disallowance of depreciation, amortization and depletion expenses - 2010 | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Provisions for possible losses |  | 712,531,000 |  | 695,679,000
IRPJ/CSLL Partial Approval of Offset of 1997 Tax Loss | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Provisions for possible losses |  | 104,873,000 |  | 254,081,000
Tax loss offset approved by tax authorities | R$ 83,000,000 |  |  |
Difference of tax loss and owned to tax authorities | R$ 51,000,000 |  |  |
Tax incentive - Agency for the Development of Northeastern Brazil ("ADENE") | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Provisions for possible losses |  | 127,391,000 |  | 125,191,000
PIS/COFINS - Goods and services - 2009 to 2011 | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Provisions for possible losses |  | 166,355,000 |  | 162,750,000
Offsetting - IRRF - period 2000 | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Provisions for possible losses |  | 109,903,000 |  | R$ 108,320,000
Tax assessment - Corporate Income Tax and Social Contribution | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Tax Assessment, Corporate Income Tax and Social Contribution |  |  | R$ 454,898,000 |
Tax assessment - taxation on a universal basis, Year 2015 | Taxes |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Provisions for possible losses |  | R$ 145,026,000 |  |
Public Civil Claims, transportation of wood | Civil |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Number of lawsuits in which the Company is a defendant | lawsuit |  | 2 |  |
Public Civil Claims, real properties acquired | Civil |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Number of lawsuits in which the Company is a defendant | lawsuit |  | 2 |  |
Public Civil Claims, real properties acquired | Civil | Public Civil Claim 1 |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Area blocked in preliminary injunction | ha |  | 6,000 |  |
Public Civil Claims, real properties acquired | Civil | Public Civil Claim 2 |  |  |  |
PROVISION FOR JUDICIAL LIABILITIES |  |  |  |
Area blocked in preliminary injunction | ha |  | 5,601 |  |

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