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INVENTORY | 12 Months Ended
--- | ---
Dec. 31, 2017
Disclosure of inventories [Abstract] |
INVENTORY | INVENTORY
| December 31, 2017 |  | December 31, 2016 |
| $ |  | $ |
Current: |  |
Finished goods | 19,262 |  | 11,627 |
Stockpiled ore | 6,806 |  | 30,574 |
Leach pad inventory | 128,783 |  | 86,696 |
Materials and supplies | 27,730 |  | 26,018 |
| 182,581 |  | 154,915 |
Non-current materials and supplies (note 8) | 3,973 |  | 1,811 |
| 186,554 |  | 156,726 |
Following the formation of our Puna Operations joint venture in 2017, which extended the operating life of the Pirquitas plant, we identified supplies inventory that is now expected to be utilized and partially reversed our existing provision by $6,342,000. As at December 31, 2017, we have total provisions of $7,250,000 (2016 - $15,376,000) for supplies inventory that we no longer expect to utilize. Purchase commitments At December 31, 2017, we had purchase obligations for supplies and consumables of approximately $15,963,000 (2016 - $17,164,000).

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