3 August 2022

Cchange of address of Hong Kong Branch Share Registrar and Transfer Office

2 August 2022

Notice of Board Meeting

2 August 2022

Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 July 2022

29 jULY 2022

Profit Warning

5 Jul 2022

Monthly Return of Equity Issuer on Movements in Securities for the month ended 30 June 2022

1 Jun 2022

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

13 May 2022

First Quarterly Results Announcement for the Three Months Ended 31 March 2022

13 May 2022

Poll Results of the Annual General Meeting Held on 13 May 2022

3 May 2022

Profit Warning

3 May 2022

Monthly Return of Equity Issuer on Movements in Securities for the month ended 30 April 2022

26 April 2022

Notice of Board Meeting

1 April 2022

Monthly Return of Equity Issuer on Movements in Securities for the month ended 31 March 2022