You're located in Europe, HK is good enough on it's own, why on earth would you bring dalaware or the states to the equation? I think you did some tax research and came to a vague conclusion, not realizing that dalaware is only good/works for AMERICANS who can't escape income tax no matter where they're located. Certainly not the case with europe. Stick to HK, consult a lawyer/accounting firm out there. You won't even pay tax in HK as your income is derived from the internet, but good luck with property prices if you decide to move.