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30 Equity (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
EQUITY |  |
Equity valuation adjustments, beginning | R$ 591,927 | R$ 785,610
Adjustments related to actuarial liabilities |  |
Post employment benefits | (271,345) | (186,628)
Taxes on adjustments | 92,190 | 63,444
Realization of equity evaluation adjustment |  |
Deemed cost of fixed assets | (90,347) | (100,342)
Taxes on the adjustments | 30,717 | 34,116
Attributed to non-controlling interest | 207 | (4,273)
Equity valuation adjustments, ending | R$ 353,349 | R$ 591,927

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