Revenue (Tables)

6 Months Ended

Jun. 30, 2022

Revenue

Revenue from the sale of dore and concentrate

	For the three months ended June 30,				For the six months ended June 30,
	2022		2021		2022		2021
	(in thousands)				(in thousands)
Doré sales, net
Gold	$	2,484	$	2,695	$	3,728	$	5,182
Silver		57		228		77		605
Less: Refining charges		(10)		(20)		(17)		(91)
Total doré sales, net		2,531		2,903		3,788		5,696
Concentrate sales
Gold		13,850		7,671		28,391		14,195
Silver		5,146		6,951		11,231		13,264
Copper		2,708		3,714		6,805		7,100
Lead		3,768		2,595		7,595		5,000
Zinc		14,352		9,240		30,669		18,006
Less: Treatment and refining charges		(3,127)		(2,907)		(5,868)		(5,791)
Total concentrate sales, net		36,697		27,264		78,823		51,774
Realized gain - embedded derivative, net(1)		1,160		359		2,026		450
Unrealized gain (loss) - embedded derivative, net		(3,324)		310		(2,156)		184
Total sales, net	$	37,064	$	30,836	$	82,481	$	58,104