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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2022
Inventories Abstract |
Schedule of inventories |
Schedule of inventories |  |  |  |
|  | December 31, 2022 |  | December 31, 2021
Finished products |  |  |  |
Iron Solutions |  | 2,126 |  | 2,192
Energy Transition Materials |  | 651 |  | 582
Other |  | - |  | 21
|  | 2,777 |  | 2,795
Work in progress |  | 800 |  | 820
Consumable inventory |  | 1,010 |  | 857
Allowance to net realizable value (i) |  | (105) |  | (95)
Total of inventories |  | 4,482 |  | 4,377
(i) | In 2022, the effect of provision for net realizable value was US$44 (2021: US$1).

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