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v3.19.1

RELATED-PARTY TRANSACTIONS - Intercompany loans (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
RELATED PARTY TRANSACTIONS |  |  |
Assets | R$ 27,939 | R$ 51,839 |
Liabilities | (1,350) |  |
Net financial income | 545 | 95 | R$ (2,457)
Diaco S.A. |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Liabilities | (1,350) |  |
Gerdau Corsa S.A.P.I de C.V. |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Assets | 72 | 7 |
Fundacao Gerdau |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Assets | R$ 27,867 | R$ 51,832 |

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