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v3.23.1

RELATED-PARTY BALANCES AND TRANSACTIONS (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
IfrsStatementLineItems [Line Items] |  |  |  |
Sales |  | R$ 2,711,660 | R$ 3,521,245 |
Cost and expenses |  | (1,754,370) | (1,394,305) |
Interest |  | 174,183 | 81,790 |
Exchange rate variations and monetary, net |  | (13,584) |  |
Financial investments | [1] | (1,198,164) | 94,866 |
Net income for the year |  | 2,167,698 | 13,595,621 | R$ 4,292,618
C S N Mineracao S A [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Dividends receivable |  | 59,469 | 320,945 |
Mineracao Nacional S A [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Dividends receivable |  | 14,785 | 56,344 |
Transnordestina Logistica [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Loan receivable |  | 1,384,773 | 1,123,375 |
Others assets |  | R$ 1,484,759 | 927,076 |
Transnordestina Logistica [Member] | Bottom of range [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Average rate |  | 125.00% |  |
Transnordestina Logistica [Member] | Top of range [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Average rate |  | 130.00% |  |
Subsidiaries Joint Ventures Associates Exclusive Funds And Other Related Partie [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Sales |  | R$ 234,150 | 274,978 |
Cost and expenses |  | (66) | (1,065) |
Interest |  |  | 251 |
Net income for the year |  | 234,084 | 274,164 |
Joint-ventures e joint operation [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Sales |  | 34,924 | 2,250 |
Cost and expenses |  | (1,538,194) | (1,273,740) |
Interest |  | 144,355 | 49,293 |
Net income for the year |  | (1,358,915) | (1,222,197) |
Other related parties [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Sales |  | 2,442,586 | 3,244,017 |
Cost and expenses |  | (216,110) | (119,500) |
Interest |  | 29,828 | 32,246 |
Exchange rate variations and monetary, net |  | (13,584) |  |
Financial investments | [1] | (1,198,164) | 94,866 |
Net income for the year |  | 1,044,556 | 3,251,629 |
Related parties [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Net income for the year |  | R$ (80,275) | R$ 2,303,596 |
[1] | Financial investments: Refers mainly to investments in Usiminas shares, cash and cash equivalents and Bonds with Banco Fibra and government bonds and CDBs with the exclusive funds.

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