SUPPLEMENTAL FINANCIAL INFORMATION

The components of revenues are as follows:

The Company has three major customers to which its sales for the year were as follows: 2017 - $13.08 million; $6.99 million; $4.40 million; (2016 (three major customers) - $33.36 million; $8.69 million; $7.00 million); (2015 (four major customers) - $20.98 million; $16.31 million; $12.53 million; $9.00 million).

The Company’s revenues by country of customer for the current year were as follows: 2017 - $20.07 million - U.S.; Other - $4.40 million; (2016 - $50.76 million - U.S.; Other - $3.69 million) (2015 -$37.85 million - U.S.; $20.98 million - South Korea; Other - $1.87 million).

Deferred revenue at December 31, 2017 of $2.47 million (2016 - $2.34 million) relates to proceeds received on delivery of alternate feed materials in advance of the required processing activity.

The components of other income (expense) are as follows:



	Years ended December 31,
	2017			2016			2015
Interest income	$	161		$	143		$	94
Change in value of investments accounted at fair value	509			—			38
Change in value of warrant liabilities	784			420			590
Change in value of convertible debentures	(940		)	(407		)	(1,548		)
Gain on settlement of loans and borrowings	—			424			—
Insurance settlement	—			223			—
Sales and property tax refunds	—			176			—
Gain on sale of mineral properties	—			316			—
Sale of surplus assets	1,913			—			—
Other	142			(96		)	406
Other income (expense)	$	2,569		$	1,199		$	(420	)

The components of accounts payable and accrued liabilities are as follows:



	December 31, 2017		December 31, 2016
Accounts payable	$	762	$	1,150
Payroll liabilities	835		1,374
Other accrued liabilities	4,852		3,232
Accounts payable and accrued liabilities	$	6,449	$	5,756