Sorry, the link is in french but i'm sure you can use chrome translator.
Lot of Banks are funding the Venezuela economy by loan in exchange of oil. China uses 85% of venezuelian oil production. And US could cleary break the supply chain of China in latin american country. They lost Panama, they lost Venezuela (one of their most important partner of China).
It's crazy how Trump is breaking China position ! And Chine does nothing to protect its allies and interests, maybe finally the tariff threat is very efficient against China.