OPTIONS AND NONVESTED SHARES (Tables)

9 Months Ended

Sep. 30, 2013

A summary of stock options activity for the nine months ended September 30, 2013 is as follow:

	Number of Options	Weighted Average Exercise Price	Weighted Average Remaining Contractual Term in Years	Aggregate Intrinsic Value
		USD		USD
Outstanding at December 31, 2012	2,648,609	9.39	7.65	18,374,422
Granted	33,000	10.48
Exercised	(353,191)	8.59		4,669,588
Forfeited and expired	(150,680)	6.78
Outstanding at September 30, 2013	2,177,738	9.71	7.20	42,462,885

Vested and expected to vest	2,177,738	9.71	7.20	42,462,885
Exercisable at September 30, 2013	1,617,738	9.73	6.66	31,509,285

	For the nine months ended
	September 30, 2013
Expected volatility		104	%
Expected dividends yield		0	%
Expected term		5 years
Risk-free interest rate (per annum)		0.72	%
Fair value of underlying ordinary shares (per share)	$	10.57

A summary of nonvested shares activity for the nine months ended September 30, 2013 is as follows:

	Number of nonvested shares	Grant date weighted average fair value
		USD
Outstanding at December 31, 2012	120,000	9.85
Granted	296,500	22.74
Vested	(63,750)	9.85
Forfeited	-	-
Outstanding at September 30, 2013	352,750	20.68