[Hillhouse Capital Management, Ltd. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ¨ (a) ¨ (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands NUMBER OF 5 SOLE VOTING POWER 2,698,276 Ordinary Shares** 6 SHARED VOTING POWER -0- 7 SOLE DISPOSITIVE POWER 2,698,276 Ordinary Share]