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INVENTORIES (Tables)

12 Months Ended

Mar. 31, 2021

Inventories [Abstract]

Schedule of inventory


						2021						2020
Work in progress			$			446.0			$			405.1
Raw materials, supplies and manufactured products						201.8						211.1
Total inventories			$			647.8			$			616.2

During the year ended March 31, 2021, use of inventory recognized in cost of sales amounted to $394.9 million (2020 ‑ $500.3 million), and impairment of inventories to net realizable value amounted to $34.0 million (2020 – $6.4 million).