I’m wondering if “backroom deals” were done between the two countries and now China is reneging. It’s not like the two nations have ever been pals. And love the western countries or hate them, China knows who’s buying their stuff.
I still see Russia as a second world nation. Not quite third world.
China will do what China thinks is in its best interest. They've always been that way. Russia may have thought they had a deal but it wouldn't surprise me at all if China walked away from it.
I see russia as Mexico, but with a LOT of nukes. Several of which are still functioning. Only Mexico is run by drug cartels and pooty is just old school mafia. Our CIA is a combo of both. Proceed with caution.