SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2016

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES [Abstract]

Schedule of property, plant and equipment stated at cost less accumulated depreciation

Buildings	40-50 years
Leasehold improvement	10-25 years
Plant and machinery	10-25 years
Motor vehicles	4-5 years
Office equipment	3-5 years
Solar power projects	25 years

Summary of company's assets held for sale

	At December 31, 2015		At December 31,2016
Property, plant and equipment, net	$	3,530,744	$	6,638,018
Prepaid land use right, net	$	710,134	$	920,200
Total	$	4,240,878	$	7,558,218

Largest prepayments made to individual suppliers [Member] | Suppliers concentration risk [Member]

Concentration Risk [Line Items]

Schedule of concentration risk

	At December 31,
	2015		2016
Supplier A	$	6,400,000	$	1,614,677
Supplier B	$	1,070,954	$	1,458,913

Advances and prepayments to equipment suppliers [Member] | Suppliers concentration risk [Member]

Concentration Risk [Line Items]

Schedule of concentration risk

	At December 31,
		2015		2016
Supplier A		$	71,783	$	236,929
Supplier B		$	66,689		-