If you have HSBC Premier account(s) in other country(ies)/territory(ies), you can (1) contact related overseas HSBC to set HSBC China as your host bank; or (2) authorise HSBC China with a designated form to transmit such instruction to the related overseas HSBC which you wish to set as home bank.
After setting HSBC China as your host bank for your HSBC Premier account(s), you can enjoy the monthly service fee waiver from HSBC China. Please be reminded though that the home bank set by you will charge the monthly service fee according to its requirement on minimum Total Relationship Balance (HSBC banks in different countries/territories may use different terms when referring to monthly service fee and may have different rules for minimum Total Relationship Balance, it is your responsibility to understand the detailed requirements). This means a monthly service fee will still be charged every month if the Total Relationship Balance of your account(s) falls below the minimum Total Relationship Balance requirement applied by the home bank.