INVENTORIES (Tables)

12 Months Ended

Dec. 31, 2017

INVENTORIES

Schedule of inventories

	At December 31, 2016		At December 31, 2017
	$		$
Raw materials		71,655		90,299
Work-in-process		22,776		59,576
Finished goods		200,940		196,217
		295,371		346,092