SECOND FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 15 SEPTEMBER 2023

SUPPLEMENTAL CIRCULAR IN RELATION TO PROPOSED TERMINATION OF THE EXISTING SHARE OPTION SCHEME AND ADOPTION OF THE NEW SHARE OPTION SCHEME AT THE ANNUAL GENERAL MEETING; AND SUPPLEMENTAL NOTICE OF ANNUAL GENERAL MEETING

FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 15 SEPTEMBER 2023

(1) PROPOSED GRANT OF GENERAL MANDATES TO ISSUE AND REPURCHASE SHARES; (2) PROPOSED PAYMENT OF A FINAL DIVIDEND OUT OF SHARE PREMIUM ACCOUNT; (3) PROPOSED RE-ELECTION OF RETIRING DIRECTORS; (4) PROPOSED RE-APPOINTMENT OF AUDITOR; (5) PROPOSED AMENDMENTS TO THE EXISTING MEMORANDUM AND ARTICLES AND PROPOSED ADOPTION OF THE AMENDED AND RESTATED MEMORANDUM AND ARTICLES; AND (6) NOTICE OF ANNUAL GENERAL MEETING

FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 23 AUGUST 2022

PROPOSALS FOR GENERAL MANDATES TO ISSUE NEW SHARES AND TO REPURCHASE SHARES, PAYMENT OF A FINAL DIVIDEND OUT OF SHARE PREMIUM ACCOUNT, RE-ELECTION OF DIRECTORS AND NOTICE OF ANNUAL GENERAL MEETING

FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 8 SEPTEMBER 2021

Proposals for general mandates to issue new shares and to repurchase shares, payment of a final dividend out of share premium account, re-election of directors and notice of annual general meeting

FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 8 SEPTEMBER 2020

Proposals for general mandates to issue new shares and to repurchase shares, payment of a final dividend out of share premium account, re-election of directors and notice of annual general meeting

FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 12 SEPTEMBER 2019

Proposals for general mandates to issue new shares and to repurchase shares, payment of a final dividend out of share premium account, re-election of directors and notice of annual general meeting

FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 7 SEPTEMBER 2018

Proposals for general mandates to issue new shares and to repurchase shares, payment of final dividend out of share premium account, re-election of directors and notice of annual general meeting

FORM OF PROXY FOR THE ANNUAL GENERAL MEETING TO BE HELD ON 14 JULY 2017

Proposals for general mandates to issue new shares and to repurchase shares, re-election of directors and notice of annual general meeting