Yes, discounted First class are booked in A for CX. As I mentioned in post #2, CX rarely discounts First. Unlike I fares, A fares are only available from TPE during short term seasonal sales. They usually come with loads of restrictions such as limited window of departure, min/max stay, limited validity, limited desinations, fee for change/refund etc. I don't know if there are A fares to SYD or MEL now.