12. Inventories, Net (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Inventory, Current [Table Text Block]

	2012		2011
	US$		US$
Raw materials		13,668,736		15,461,871
Work-in-progress		8,745,336		8,678,336
Finished goods		8,424,220		9,188,742
Total inventories		30,838,292		33,328,949