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COST OF SALES (Tables)

12 Months Ended

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