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INVENTORIES
 12 Months Ended
Mar. 31, 2026
Inventories [Abstract]  
INVENTORIES INVENTORIES
20262025
Work in progress$246.6 $348.4 
Raw materials, supplies and manufactured products208.2 246.6 
Total inventories$454.8 $595.0 
 
During the year ended March 31, 2026, the use of inventory recognized in cost of sales amounted to $552.2 million (2025 ‑ $557.2 million) and the impairment of inventories to net realizable value amounted to $17.6 million (2025 – $2.1 million).