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v3.23.1

COST OF SALES (Tables) | 12 Months Ended
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Dec. 31, 2022
Analysis of income and expense [abstract] |
Schedule of cost of sales |
|  | Year ended December 31,
|  | 2022 |  | 2021 |  | 2020
Inventories at the beginning of the year |  | 3,908,305 |  |  | 2,001,781 |  |  | 2,158,298 |
Plus: Charges for the year |  |  |  |  |  |
Raw materials and consumables used and other movements |  | 9,773,523 |  |  | 9,835,504 |  |  | 5,359,938 |
Services and fees |  | 183,003 |  |  | 151,251 |  |  | 112,924 |
Labor cost |  | 862,593 |  |  | 689,614 |  |  | 546,045 |
Depreciation of property, plant and equipment |  | 532,160 |  |  | 514,746 |  |  | 527,283 |
Amortization of intangible assets |  | 43,947 |  |  | 23,519 |  |  | 14,624 |
Maintenance expenses |  | 612,928 |  |  | 582,633 |  |  | 371,368 |
Office expenses |  | 10,295 |  |  | 7,741 |  |  | 6,131 |
Insurance |  | 15,184 |  |  | 12,309 |  |  | 10,641 |
Change of obsolescence allowance |  | 20,804 |  |  | 3,965 |  |  | (1,279) |
Valuation allowance |  | 15,333 |  |  | — |  |  | — |
Recovery from sales of scrap and by-products |  | (42,000) |  |  | (37,597) |  |  | (20,892) |
Others |  | 21,422 |  |  | 17,909 |  |  | 16,623 |
Less: Inventories at the end of the year |  | (3,470,215) |  |  | (3,908,305) |  |  | (2,001,781) |
Cost of Sales |  | 12,487,282 |  |  | 9,895,070 |  |  | 7,099,923 |

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