CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities
Net income (loss)	$ (571,080)	$ 456,382
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	1,182,314	999,544
Allowance for doubtful accounts	(3,965)	282,127
Loss on disposal of property, plant and equipment	102,926	56,703
Income on derivative instruments	123,333	31,278
Deferred income tax	(137,726)	106,644
Share based payment	94,710	93,164
Changes in operating assets and liabilities :
Accounts receivable	(41,371)	(4,971,615)
Notes receivable	(167,535)	(1,227,504)
Prepayments	(1,372,932)	591,874
Other receivable	8,451	240,454
Inventories	(1,924,454)	(2,907,198)
Accounts payable	1,414,867	5,680,116
Deferred revenue		652,157
Other payables and accrued liabilities	1,725,062	1,481,165
Income taxes payable	(228,533)	69,855
Net cash flows provided by operating activities	204,067	1,635,146
Cash flows from investing activities
Acquisition of plant and equipment	(7,335,376)	(8,484,171)
Acquisition of land use right		(1,326,010)
Net cash flows used in investing activities	(7,335,376)	(9,810,181)
Cash flows from financing activities
Proceeds from short-term bank loans	15,581,691	5,871,646
Repayment of short-term bank loans	(8,515,280)	(1,196,676)
Proceeds from long-term bank loans		7,914,523
Repayment of long-term bank loans	(962,603)
Proceeds from notes payable	20,038,103	19,682,410
Repayment of notes payable	(26,517,924)	(16,633,527)
Repayment of letter of credit		(2,880,000)
Proceeds from non-controlling interest		949,743
Increase (decrease) in restricted cash	3,280,806	(5,387,117)
Net cash flows provided by financing activities	2,904,793	8,321,002
Effect of foreign currency translation on cash and cash equivalents	265,988	(201,599)
Net decrease in cash and cash equivalents	(3,960,528)	(55,632)
Cash and cash equivalents - beginning of period	6,627,334	5,175,623
Cash and cash equivalents - end of period	2,666,806	5,119,991
Cash paid for :
Income taxes	573,588	239,767
Interest expenses	701,412	590,399
Non-cash transactions
Accounts payable for construction in progress	$ 1,649,807	$ 1,501,464