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INVENTORIES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Schedule of inventory | Schedule of inventory
|  |  | Consolidated
| 12/31/2021 |  | 12/31/2020
Finished goods | 4,457,842 |  | 1,627,676
Work in progress | 2,710,149 |  | 1,358,905
Raw materials | 3,638,952 |  | 1,289,653
Storeroom supplies | 770,296 |  | 928,158
Advances to suppliers | 121,519 |  | 69,536
Provision for losses | (98,730) |  | (109,038)
| 11,600,028 |  | 5,164,890
Classified: |  |  |
Current | 10,943,835 |  | 4,817,586
Non-current (1) | 656,193 |  | 347,304
Inventoy, net | 11,600,028 |  | 5,164,890
| 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: Schedule of provision for inventory losses
|  |  |  | Consolidated
|  | 12/31/2021 |  | 12/31/2020
Opening balance |  | (109,038) |  | (134,553)
(Estimated losses) / Reversal of inventories with low turnover and obsolescence |  | 10,308 |  | 25,515
Closing balance |  | (98,730) |  | (109,038)

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