or you can process in other banks in hong kong, and they will process a Chats (local telegraphic transfer) for you, but that will charge you
or you can process via the internet banking as well, if via hangseng internet banking, then no charge, from other banks' internet banking, majority will have charge and that might not be instant transfer as well
or you can process via ETC (the ATM systems of both hangseng and hsbc) then you can transfer to the beneficiary (without charge)
or you can issue a cheque from any of your cheque account (or cash) and deposit to the beneficiary account at hangseng bank or via their instant deposit machine for the cheque or cash deposit