The bank will give you its SWIFT code, which will allow you to receive funds by bank transfer.
Please note that the IBAN does not exist in Hong Kong (but you can make transfers to an account with an IBAN). To make a transfer to your account, you must indicate to your customers your account number, the name and address of the bank, and the SWIFT code of the bank.
It is possible to cash checks issued out of HK but we strongly advise against this means of payment abroad because of the time of collection (more than a month) and fees.