Restricted cash

12 Months Ended

Dec. 31, 2018

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents Disclosure [Text Block]

4. Restricted cash

	December 31,		December 31,
	2018		2017
		$		$
Financial product		5,594,200		-
Security deposit		36,898,661		21,837,690
Time deposit		1,733,757		3,982,226
Government subsidy deposit		269,015		134,030
		44,495,633		25,953,946

As of December 31, 2018, cash of $5.6 million was purchased financial product, cash of $36.9 million was restricted by eight banks for bank acceptance bill, cash of $1.7 million was restricted for short-term bank loan and cash of $0.3 million was restricted under supervision by the Government due to government subsidy granted.

As of December 31, 2017, cash of $21.8 million was restricted by eight banks for bank acceptance bill, cash of $4.0 million was restricted for short-term bank loan and cash of $0.1 million was restricted under supervision by the Government due to government subsidy granted.