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14. LOANS AND BORROWINGS (Details 4) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
DisclosureOfLoansAndFinancingLineItems [Line Items] |  |  |
Total of loans and financing | R$ 22,404,426 | R$ 18,620,279 | R$ 22,165,444
Mortgage guarantees | 44,816 | 51,237 |
Related to FINEM-BNDES [member] |  |  |
DisclosureOfLoansAndFinancingLineItems [Line Items] |  |  |
Mortgage guarantees |  | 45,516 |
Related to tax incentives and other [member] |  |  |
DisclosureOfLoansAndFinancingLineItems [Line Items] |  |  |
Mortgage guarantees | R$ 44,816 | R$ 5,721 |

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