| Schedule of property, plant and equipment |
Property, plant and equipment are amortized on a straight-line basis over their estimated useful lives as follows: | | | | | | | Buildings | 10 - 30 years | | Manufacturing plant, equipment and machinery | 6 - 25 years | | Fixtures, mobile and other equipment | 3 - 10 years | | Roads and bridges | Not exceeding 40 years | | Major maintenance shutdowns | 1 - 2 years |
Supporting Information | | | | | | | | | | | | | | | | | | | Manufacturing
plant,
equipment and
machinery | Construction-
in-progress | Roads
and
bridges | Other | Total | | As at December 31, 2023 | $ | 3,319 | | $ | 376 | | $ | 46 | | $ | 94 | | $ | 3,835 | | | CPL agreement (note 3) | 12 | | 2 | | — | | — | | 15 | | | | | | | | | Additions | 73 | | 411 | | 11 | | — | | 495 | | Amortization1 | (462) | | — | | (7) | | (1) | | (470) | | Impairment (note 16) | (15) | | — | | — | | — | | (15) | | | | | | | | | Foreign exchange | (11) | | — | | — | | (5) | | (16) | | Disposals | (2) | | — | | — | | — | | (2) | | | Transfers | 343 | | (343) | | — | | — | | — | | | As at December 31, 2024 | $ | 3,259 | | $ | 445 | | $ | 49 | | $ | 89 | | $ | 3,842 | | | | | | | | | | | | | | | As at December 31, 2024 | | | | | | | Cost | $ | 6,939 | | $ | 445 | | $ | 165 | | $ | 91 | | $ | 7,641 | | | Accumulated amortization | (3,680) | | — | | (116) | | (2) | | (3,798) | | | Net | $ | 3,259 | | $ | 445 | | $ | 49 | | $ | 89 | | $ | 3,842 | | | | | | | | | | | | | | | As at December 31, 2024 | $ | 3,259 | | $ | 445 | | $ | 49 | | $ | 89 | | $ | 3,842 | | | | | | | | Additions | 166 | | 264 | | 10 | | — | | 440 | | Amortization1 | (469) | | — | | (8) | | (2) | | (478) | | Impairment (note 16) | (227) | | (13) | | — | | — | | (241) | | | | | | | | Foreign exchange | 26 | | 1 | | — | | 4 | | 31 | | | Disposals | — | | — | | — | | (1) | | (1) | | Transfers | 413 | | (414) | | 1 | | — | | — | | | As at December 31, 2025 | $ | 3,168 | | $ | 282 | | $ | 52 | | $ | 91 | | $ | 3,593 | | | | | | | | | | | | | | As at December 31, 2025 | | | | | | Cost | $ | 7,204 | | $ | 282 | | $ | 163 | | $ | 98 | | $ | 7,747 | | Accumulated amortization | (4,036) | | — | | (112) | | (6) | | (4,154) | | | Net | $ | 3,168 | | $ | 282 | | $ | 52 | | $ | 91 | | $ | 3,593 | |
1.Amortization of $468 million relates to cost of products sold and $10 million relates to selling, general and administration expense (2024 - $462 million and $8 million respectively).
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