INVENTORIES (Tables)

12 Months Ended

Dec. 31, 2016

INVENTORIES [Abstract]

Schedule of inventories

	At December 31,
	2015		2016
Raw materials	$	44,208,096	$	21,112,892
Work-in-process		27,302,298		27,941,926
Finished goods		121,660,725		94,921,237
Total inventories	$	193,171,119	$	143,976,055