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v3.25.1

Inventories (Tables) | 12 Months Ended
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Dec. 31, 2024
Text Block 1 [Abstract] |
Summary of Inventories |
|  |  |  |  | 12.31.2024 |  |  | 12.31.2023 |
|  |  |  |  | Gross book value |  |  | Write-down for obsolescence |  |  | Write-down for market value |  |  | Net book value |  |  | Gross book value |  |  | Write-down for obsolescence |  |  | Write-down for market value |  |  | Net book value |
Raw materials |  |  |  |  |  |  | 1,302.6 |  |  |  | (84.6 | ) |  |  | — |  |  |  | 1,218.0 |  |  |  | 1,118.9 |  |  |  | (81.7 | ) |  |  | — |  |  |  | 1,037.2 |
Work in process |  |  |  |  |  |  | 840.9 |  |  |  | — |  |  |  | — |  |  |  | 840.9 |  |  |  | 774.9 |  |  |  | — |  |  |  | — |  |  |  | 774.9 |
Spare parts |  |  |  |  |  |  | 476.5 |  |  |  | (38.2 | ) |  |  | (0.9 | ) |  |  | 437.4 |  |  |  | 477.6 |  |  |  | (34.3 | ) |  |  | (1.4 | ) |  |  | 441.9 |
Finished goods |  |  | (i | ) |  |  | 76.8 |  |  |  | — |  |  |  | — |  |  |  | 76.8 |  |  |  | 61.6 |  |  |  | — |  |  |  | — |  |  |  | 61.6 |
Held by third parties |  |  |  |  |  |  | 112.2 |  |  |  | (4.5 | ) |  |  | — |  |  |  | 107.7 |  |  |  | 97.5 |  |  |  | (1.3 | ) |  |  | — |  |  |  | 96.2 |
Advances to suppliers |  |  |  |  |  |  | 39.1 |  |  |  | — |  |  |  | — |  |  |  | 39.1 |  |  |  | 25.4 |  |  |  | — |  |  |  | — |  |  |  | 25.4 |
Inventory in transit |  |  |  |  |  |  | 163.2 |  |  |  | — |  |  |  | — |  |  |  | 163.2 |  |  |  | 155.7 |  |  |  | — |  |  |  | — |  |  |  | 155.7 |
Consumption materials |  |  |  |  |  |  | 58.4 |  |  |  | (5.4 | ) |  |  | — |  |  |  | 53.0 |  |  |  | 51.7 |  |  |  | (8.6 | ) |  |  | — |  |  |  | 43.1 |
|  |  |  |  |  |  | 3,069.7 |  |  |  | (132.7 | ) |  |  | (0.9 | ) |  |  | 2,936.1 |  |  |  | 2,763.3 |  |  |  | (125.9 | ) |  |  | (1.4 | ) |  |  | 2,636.0 |
Summary of Loss Due to Reduction in Market Value | The movement of write-down for reduction in market value was as follows:
|  | 12.31.2024 |  |  | 12.31.2023 |  |  | 12.31.2022 |
Beginning balance |  |  | (1.4 | ) |  |  | (5.7 | ) |  |  | (1.0 | )
Additions |  |  | — |  |  |  | (0.6 | ) |  |  | (5.9 | )
Disposals |  |  | 0.1 |  |  |  | — |  |  |  | 1.2 |
Reversals |  |  | 0.4 |  |  |  | 4.9 |  |  |  | — |
Ending balance |  |  | (0.9 | ) |  |  | (1.4 | ) |  |  | (5.7 | )
Summary of Loss Due to Obsolescence | The movement of write-down for obsolescence was as follows:
|  | 12.31.2024 |  |  | 12.31.2023 |  |  | 12.31.2022 |
Beginning balance |  |  | (125.9 | ) |  |  | (126.1 | ) |  |  | (150.9 | )
Additions |  |  | (52.9 | ) |  |  | (50.5 | ) |  |  | (38.4 | )
Disposals |  |  | 11.5 |  |  |  | 13.5 |  |  |  | 54.0 |
Reversals |  |  | 33.9 |  |  |  | 37.5 |  |  |  | 8.6 |
Foreign exchange gain (loss) |  |  | 0.7 |  |  |  | (0.3 | ) |  |  | 0.6 |
Ending balance |  |  | (132.7 | ) |  |  | (125.9 | ) |  |  | (126.1 | )

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