The Hong Kong Securities Clearing Company Limited will launch a trading calendar enhancement on April 24, 2023, which allows trading under Stock Connect on all trading days when both the Hong Kong and Mainland China markets are open. The first additional Northbound trading day will be on May 25, 2023. China Connect Clearing Participants and Designated Banks are reminded to refer to the updated Settlement Calendar for Northbound Trading and to prepare accordingly. Failure to settle net payable CNS money positions by CCCPs by 18:00 on H-1 days will result in an event of default for the CCCP. DBs are advised to consult their IT support units or system vendors before the first H-1 day if they have not done so.
resource: https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/HKSCC/2023/ce_HKSCC_SET_017_2023.pdf
