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Inventories
 12 Months Ended
Dec. 31, 2024
INVENTORIES [Abstract]  
Inventories Inventories
As at
December 31
As at
December 31
(in millions of U.S. dollars)20242023
INVENTORIES


Stockpile ore
45.2 34.1 
Work-in-process17.1 5.3 
Finished goods(1)
14.4 16.8 
Supplies74.6 70.5 
Total inventories151.3 126.7 
Less: non-current stockpile inventories(32.6)— 
Total current inventories(2)
118.7 126.7 
1.The amount of inventories recognized in operating expenses for the year ended December 31, 2024 was $421.1 million (2023 - $436.2 million).
2.During the year ended December 31, 2024, the Company reversed the previously recorded $19.8 million write-down of low-grade stockpile.