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9. RECOVERABLE TAXES (Details 2) - IPI ("Federal VAT") [Member]
R$ in Thousands
Dec. 31, 2020
BRL (R$)
DisclosureOfRecoverableTaxesLineItems [Line Items]  
2021 R$ 40,370
2022 15,449
2023 590,760
2024 214,241
Industrialized Product Tax R$ 860,820