You're suggesting that a company is implicitly unethical because its Chinese, not only is that racist but nearly every example of mining companies has shown the opposite.
Somewhat related question: Are you for or against Brexit ?
For.
My dissertation involved spending months looking at legislation, of which the majority was mandated at the EU level via directives which had to be implemented into UK law regardless of if it made sense or not for us. A recent horrendous example is VAT MOSS which is literally the dumbest thing you've ever seen and if any of my businesses touched it I'd just close them rather than comply. On top of that, opportunity arises out of uncertainty and its very likely we'll be able to negotiate far better trading terms with states individually than as a lump sum.
Then let me ask about Avalon Project. Are they ok to buy from?
Yes, although you'll buy from their distributor rather than them directly now.
May I ask what do you mean by this?
Probably uncertainty in both btc exchange rates, mining difficulty and miner prices.