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Accounts receivable (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounts receivable |
Schedule of accounts receivable |
|  | December 31, 2020 |  | December 31, 2019 |
Accounts receivable |  | 5,043 |  | 2,592 |
Expected credit loss |  | (50) |  | (63) |
|  | 4,993 |  | 2,529 |
Revenue related to the steel sector-% |  | 87.25 | % | 87.33 | %
Schedule of impairment of accounts receivables recorded in income statement |
|  | Year ended December 31,
|  | 2020 |  | 2019 |  | 2018
Impairment of accounts receivable recorded in the income statement |  | 5 |  | (1) |  | (7)

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