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Inventories (Tables) | 12 Months Ended
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Jun. 30, 2018
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Summary of Inventories |
|  | 2018 |  |  | 2017 |  |  | Definitions
|  | US$M |  |  | US$M |  |  |
Raw materials and consumables |  |  | 1,266 |  |  |  | 1,241 |  |  | Spares, consumables and other supplies yet to be utilised in the production process or in the rendering of services.
Work in progress |  |  | 2,965 |  |  |  | 2,852 |  |  | Commodities currently in the production process that require further processing by the Group to a saleable form.
Finished goods |  |  | 674 |  |  |  | 675 |  |  | Commodities held-for-sale and not requiring further processing by the Group.
Total (1) |  |  | 4,905 |  |  |  | 4,768 |  |  |
Comprising: |  |  |  |  |  |  |  |  |  |
Current |  |  | 3,764 |  |  |  | 3,673 |  |  |
Non-current |  |  | 1,141 |  |  |  | 1,095 |  |  | Inventories classified as non-current are not expected to be utilised or sold within 12 months after the reporting date.
(1) | Inventory write-downs of US$18 million were recognised during the year (2017: US$112 million; 2016: US$118 million). Inventory write-downs of US$2 million made in previous periods were reversed during the year (2017: US$19 million; 2016: US$118 million).

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