[unimportant]

I don't do b2c e-business, but friends who do tell me that there are no good solutions in HK right now aside from PayPal, but good luck if they ever freeze your account.

There are company structures possible though via a second company in a EU country with a double taxation treaty that would make things easier if you need more than PayPal, but the cost for the whole setup is probably prohibitive if you're just starting out.