China doesn’t have a national minimum wage, but minimum wage is delegated to the local level there and definitely exists in every single province. Just echoing what the other user said, literally everything you said here is easily disprovable. https://www.china-briefing.com/news/minimum-wages-China/
And included in half the staff was every member of their union bargaining committee. The workers got done dirty when that sale to Songtradr happened. I’m not even sure if Songtradr has recognized the union yet. They had just won their election (overwhelmingly) and the sale happened right after that.