Cash and Cash Equivalents

9 Months Ended

Sep. 30, 2019

Cash And Cash Equivalents [Abstract]

Cash and Cash Equivalents

3. Cash and cash equivalents

	As of
	December 31, 2018		September 30, 2019
	$		$
Cash at bank and in hand		36,778,028		67,890,424
Cash equivalents		26,173,579		817,117
		62,951,607		68,707,541
Denominated in:
US$		58,253,341		58,083,606
RMB (note (i))		3,916,262		7,438,348
Hong Kong dollar ("HK$"）		19,890		2,460,557
Australia dollar ("A$")		762,114		725,030
		62,951,607		68,707,541

Note:

(i) Certain cash and bank balances denominated in RMB were deposited with banks in the PRC. The conversion of these RMB denominated balances into foreign currencies is subject to the rules and regulations of foreign exchange control promulgated by the PRC government.