COST OF SALES EXCLUDING DEPRECIATION AND AMORTIZATION

12 Months Ended

Dec. 31, 2017

Analysis of income and expense [abstract]

COST OF SALES EXCLUDING DEPRECIATION AND AMORTIZATION

18. COST OF SALES EXCLUDING DEPRECIATION AND AMORTIZATION

Cost of sales excluding depreciation and amortization include the following components:

	For the Years Ended   December 31,
	2017		2016
Contractors	$	41,297	$	32,869
Electricity	20,558		18,378
Fuel	11,137		12,647
Raw materials and consumables	51,996		44,016
Salaries and benefits	53,582		43,404
Transportation costs	2,116		1,949
General and administrative	7,695		6,216
Other	8,997		6,505
Mine operating expenses	$	197,378	$	165,984
Severance charges	9,232		(71		)
Operating costs to metal inventory	167		(6,569		)
Inventory net realizable value adjustment	2,410		1,190
Royalties	17,295		12,082
	$	226,482	$	172,616