Asked around, Guotai Junan International and Futu, the current plans for entering the cryptocurrency space are still through brokerage intermediaries, with Hashkey being used as the underlying.

Guotai Junan International requires users to hold an overseas long-term visa.

Futu requires users to have a Hong Kong or overseas ID.

If a cryptocurrency user runs from Binance to register an account with the above, it implies that not only overseas identity documentation is needed, but also tax system involvement, which is considered a historical regression.