Can Hong Kong securities companies open accounts with mainlanders?

Hello, Hong Kong, Macao and Taiwan residents can handle A-share securities accounts; The specific information to be prepared is as follows:

A valid Hong Kong, Macao and Taiwan Pass to and from the Mainland or a valid Taiwan Province Pass to and from the Mainland must also be submitted with the identity cards and photocopies of local residents of Hong Kong, Macao and Taiwan, the temporary accommodation registration form issued by the public security organ (or similar documents recognized by the public security organ) and photocopies, and other written proof materials that can prove that Hong Kong, Macao and Taiwan residents work and live in the Mainland (the official seal of the public security organ is required).