Putin is trying to recreate the same kind of coercive oil trade relationship with China that he has with the EU.
https://www.cnn.com/2025/08/14/europe/us-europe-trade-business-with-russia-intl
https://www.politico.eu/article/hungary-sanction-ukraine-commander-russian-oil-pipeline-strikes/
Putin is simply copying OPEC & Koch Network's desperation to hang on to captive consumers dependent on oil.
A lot like the trade in heroin, Afghanistan, Turkey, and Italy -- desperately warring over who has control of an ever shrinking pool of addicts.