Who would care if a Chinese company declared a different value.. Do they have the same laws?
Ummmm CBSA would definitely care and UPS has some skin in the game too. If you can't afford 13% tax on a miner maybe mining is not for you.
Maybe people don't like paying 13% in extortion fees to highway robbers. Or ANY extortion fees for that matter. Your ever think of that?
Its called a consumption tax and if you don't like it then tell your govt rep or leave the country. Or marry somebody with a status card???