FORM OF PROXY FOR USE AT THE ANNUAL GENERAL MEETING TO BE HELD ON WEDNESDAY, 31 MAY 2017 AT 11:00 A.M. (OR AT ANY ADJOURNED MEETING THEREOF)

GENERAL MANDATES TO ISSUE AND REPURCHASE SHARES, RE-ELECTION OF THE RETIRING DIRECTORS, RE-APPOINTMENT OF AUDITORS, REFRESHMENT OF SHARE OPTION AND SHARE AWARD SCHEMES MANDATE LIMITS AND NOTICE OF ANNUAL GENERAL MEETING