Hi KB, you are right. The fast track requires you to obtain a frozen ATPL. Pre-qualified Cadet Programme minimum requirements: -
Holds a valid 1st class medical certificate without restriction
Holder of ICAO frozen ATPL
Has at least 250 flying hours or as required by Hong Kong Civil
Aviation Department for the conversion to a Hong Kong CPL
Holder of Hong Kong Permanent Identity Card (not sure if this applies to CX).
Best of luck to anyone who is looking into this programme.