Inventory and Ore on Leach Pads

9 Months Ended

Sep. 30, 2018

Inventory consists of the following:



In thousands	September 30, 2018		December 31, 2017
Inventory:
Concentrate	$	8,778	$	6,831
Precious metals	20,116		18,803
Supplies	33,675		32,596
	62,569		58,230
Ore on leach pads:
Current	77,515		73,752
Non-current	67,420		65,393
	144,935		139,145
Total inventory and ore on leach pads	$	207,504	$	197,375

Upon commencement of commercial production, Silvertip recognized a $8.7 million write-down of metal inventory as a result of lower than expected production levels, grades and recovery rates as well as reduced process plant availability and unfavorable changes in metal prices. It is possible that additional write-downs will be required as the Company works to optimize operations at Silvertip.