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Inventories | 12 Months Ended
--- | ---
Mar. 31, 2019
Inventory Disclosure [Abstract] |
Inventories | Inventories Inventories consist of the following components:
| 31 March
(Millions of US dollars) | 2019 |  | 2018
Finished goods | $ | 235.0 |  |  | $ | 190.3 |
Work-in-process | 7.3 |  |  | 8.1 |
Raw materials and supplies | 88.8 |  |  | 65.3 |
Provision for obsolete finished goods and raw materials | (13.7 | ) |  | (8.0 | )
Total inventories | $ | 317.4 |  |  | $ | 255.7 |
As of 31 March 2019 and 2018, US$32.9 million and US$30.2 million, respectively, of the Company’s finished goods inventory balance was held at vendor managed inventory locations.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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