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7. INVENTORIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Inventories [Abstract] |
Schedule of inventory |
|  |  | Consolidated
| 12/31/2020 |  | 12/31/2019
Finished goods | 1,627,676 |  | 1,691,842
Work in progress(1) | 1,358,905 |  | 1,438,868
Raw materials | 1,289,653 |  | 1,493,129
Spare parts | 928,158 |  | 902,135
Advances to suppliers | 69,536 |  | 35,828
Provision for losses | (109,038) |  | (134,553)
| 5,164,890 |  | 5,427,249
Classified: |  |  |
Current | 4,817,586 |  | 5,282,750
Non-current | 347,304 |  | 144,499
| 5,164,890 |  | 5,427,249
| 1. | Long-term iron ore inventories that will be used after the construction of the processing plant, which will produce pellet feed, In 2020, the Company defined the construction project for the new plant for processing Itabirito, which until then was considered as waste, and started to be incorporated into the long-term ore inventory.
Schedule of provision for inventory losses | The changes in estimated losses on inventories are as follows:
|  | 12/31/2020 |  | 12/31/2019
Opening balance |  | (134,553) |  | (157,754)
(Estimated losses) / Reversal of inventories with low turnover and obsolescence |  | 25,515 |  | 23,201
Closing balance |  | (109,038) |  | (134,553)

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