Yeah fairly certain Ukraine could just go "Any land exchanges made while the region was under hostile occupation are null and void" before returning shit to its previous state.
Also what exactly would China stand to gain from such a purchase, other than a shitton of bad blood with Ukraine and bad press around the world. If Russia loses it will be in a position where China doesn't need to cozy up to them or even pretend they're anything other than their bitch at that point.
Well, things are never
quite that simple.
Possession is 9/10ths of the law, after all.
Mostly, it would be a foothold that People's Republic of China could use as leverage. China could even get GOOD relations by turning it over to Ukraine and claiming they were "just holding it" until Ukraine restored it's sovereign breakaway province, being sympathetic to that sort of thing.
So the raid in the Belgorod region is officially over. It was a weird one for sure. I don't think that it was a huge success in terms of actual damage to Russian forces but the propaganda value is high and it will likely force Russians to keep more forces on the border.
One thing I really dislike is that they used American MRAPs and lost some of them there. I somehow suspect that the USA never gave permission of using American gear for this kind of operation.
Well, they never were going to get "Official Approval" for any equipment used to cross the Russian border.
While I bemoan US equipment ending up in Russian hands, it's really not different from when it's used officially by Ukraine, just the risks are higher. Hopefully, the rebels blew up enough stuff to make it worthwhile. It also highlights how important it is for Russia to keep forces off the front lines to stop that sort of thing in the future.