SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2012

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES [Abstract]

Schedule of Property, Plant and Equipment, Depreciation, Estimated Lives

Property, plant and equipment are recorded at cost less accumulated depreciation. Depreciation is recognized on a straight-line basis over the following estimated useful lives:


Buildings and plant			20 years
Machinery and equipment			10 years
Furniture, fixtures and equipment			3-5 years
Motor vehicles			6 years

Schedule of Customers of Accounts Receivable

The following customers accounted for 10% or more of accounts receivable:


	December 31,
Accounts receivable	2011		2012
Customer A	$	2,655,592	$	12,529,889
Customer C	$	2,549,318	$	3,568,910
Customer H	$	5,947,325	$	-
Customer D	$	2,823,130	$	1,842,310

Schedule of Share-Based Compensation Expenses

For the years ended December 31, 2010, 2011 and 2012, the Group recognized share-based compensation expense of $1,614,755, $2,206,025 and $2,249,834 respectively, which was classified as follows:


	Year ended December 31,
	2010		2011		2012
Selling, general and administrative expenses	$	1,513,137	$	2,068,115	$	2,018,817
Research and development expenses		96,827		75,508		175,242
Cost of sales		4,791		62,402		55,775

Total	$	1,614,755	$	2,206,025	$	2,249,834