UPDATE ON ARRANGEMENTS FOR THE 2022 ANNUAL GENERAL MEETING

CHANGE OF COMPANY SECRETARY, AUTHORISED REPRESENTATIVE AND PROCESS AGENT

UNAUDITED RESULTS FOR THE THREE MONTHS ENDED MARCH 31, 2022

MONTHLY REVENUE ANNOUNCEMENT FOR APRIL 2022

Monthly Return for Equity Issuer and Hong Kong Depositary Receipts listed under Chapter 19B of the Exchange Listing Rules on Movements in Securities

PROFIT WARNING

NOTICE OF ANNUAL GENERAL MEETING

FORM OF PROXY

PROPOSED RE-ELECTION OF RETIRING DIRECTORS, GENERAL MANDATES TO ISSUE NEW SHARES AND TO REPURCHASE SHARES, PROPOSED ADOPTION OF NEW BYE-LAWS AND NOTICE OF ANNUAL GENERAL MEETING

MONTHLY REVENUE ANNOUNCEMENT FOR MARCH 2022