Restricted Cash

3 Months Ended

Jun. 30, 2011

Restricted Cash [Text Block]

4. Restricted cash

		June 30,		December 31,
		2011		2010
		(Unaudited)
Bank deposits held as collateral for performance bonds issued by the banks to customers	$	2,603,281	$	1,677,566

When the Company’s customers request to receive performance bonds issued by the banks in relation to the Company’s performance under the sales contracts, the Company has to place deposits with banks equal to 100% of the bonds amount at the time of issuance.