After 2020, Hong Kong banks significantly tightened their onboarding processes. FATF, OECD, international sanctions lists — all of this puts pressure on compliance departments, and they play it safe. Opening an account "just like that" by walking in with a package of documents is no longer possible.
The bank looks at the company structure, the reputation of the owners, the geography of operations, and the logic of cash flows. If the business is presented vaguely — rejection. If documents are submitted without preparation — rejection. A second application to the same bank after a refusal drastically reduces the chances.