Note 2 - Cost of sales - Components of Cost of Sales (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Note 2 - Cost of sales | |||||||||||
| Inventories at the beginning of the year | $ 3,709,942 | $ 3,921,097 | $ 3,986,929 | ||||||||
| Changes in inventories due to business combinations | 52,792 | [1] | 107,588 | [2] | |||||||
| Decrease in inventory due to deconsolidation of subsidiaries (**) | [3] | 43 | |||||||||
| Plus: Charges of the year | |||||||||||
| Raw materials, energy, consumables and other | 4,425,441 | 4,638,681 | 5,277,507 | ||||||||
| Services and fees | 367,532 | 408,478 | 437,804 | ||||||||
| Labor cost | 1,411,608 | 1,454,924 | 1,403,546 | ||||||||
| Depreciation of property, plant and equipment | 476,215 | 483,535 | 424,373 | ||||||||
| Amortization of intangible assets | 13,602 | 12,193 | 11,582 | ||||||||
| Depreciation of right-of-use assets | 37,844 | 34,332 | 30,352 | ||||||||
| Maintenance expenses | 338,042 | 443,498 | 408,410 | ||||||||
| Allowance for obsolescence | 53,700 | 41,240 | 13,581 | ||||||||
| Taxes | 417,380 | 124,500 | 272,120 | ||||||||
| Other | 211,539 | 230,161 | 216,220 | ||||||||
| Cost of sales including discontinued operations | 7,752,860 | 7,924,334 | 8,603,083 | ||||||||
| Less: Inventories at the end of the year | (3,602,058) | (3,709,942) | (3,921,097) | ||||||||
| Cost of sales | $ 7,860,744 | $ 8,135,489 | $ 8,668,915 | ||||||||
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