v3.26.1
Inventories (Tables)
12 Months Ended
Mar. 31, 2026
Inventory Disclosure [Abstract]  
Schedule of Components of Inventories
Inventories consist of the following components:
 March 31
(Millions of US dollars)20262025
Finished goods$453.0 $243.9 
Work-in-process53.5 26.5 
Raw materials and supplies145.1 87.4 
Provision for obsolete finished goods and raw materials(15.9)(10.7)
Total$635.7 $347.1