To make a request by post, please send a completed 'Bank Confirmation Request Form (for audit purposes)' (This is an interactive Adobe PDF form that cannot be viewed in browser. Please download the form to your local drive and open it with Adobe Reader.) to: 
HSBC Audit Confirmation Team
1/F, Tower 2, HSBC Centre
1 Sham Mong Road, Kowloon, Hong Kong
For a faster service, you can now choose to receive our audit  confirmation report by email. By selecting email1 as the delivery option on the  request form, you'll receive the report at  least four working days  sooner than the physical report at no extra  cost.
The charges for bank confirmation for audit purposes  are set out in our Commercial Tariffs under 'Bank confirmation for audit  purposes' in the 'Request of Report/ Document Copies' section. You can view the  Commercial Tariffs on our public website (https://www.business.hsbc.com.hk/en-gb/regulations/commercial-tariffs). 
If you need any help, please contact the HSBC Audit Confirmation hotline  on +852 2288 2177 during 9 am to 6 pm from Monday to  Friday, except public holidays. 
1 Audit confirmation reports will be sent via HSBCHKBANK@notification.hsbc.com