I opened local stock trading at Megabank , not too difficult if have ARC.
Opening a US and HK trading account was a pain , eventually I got it done in Firstbank but be warned, they charge 25 USD per US stock trade- so 50 bucks for any individual stock ultimately (by the way they never once told me that it will be minimum 25 USD a trade while you may use an app a broker still seems to overview the process somehow )!
I have posted about the whole experience, also loans.