According to CoinMeta, HSBC Hong Kong requires some existing investment customers from the Chinese mainland to submit a "Declaration for Account Opening/Maintenance" through HSBC Hong Kong’s app by September 12 and to update their contact information. The declaration includes confirming that the investment funds come from legal sources outside of mainland China. If the submission is not made by August 20, investment-related services may be suspended; if not submitted by September 12, investment-related services may be terminated. A HSBC spokesperson stated that this requirement applies only to investment service customers and is aimed at complying with relevant regulatory requirements.