I've had dealings with Chinese chemical producers. You don't open a business or sell things to foreign countries in China without the CCP's knowledge and some

I've had dealings with Chinese chemical producers. You don't open a business or sell things to foreign countries in China without the CCP's knowledge and some small degree of consent. Considering the risks and the degree of monitoring I doubt Chinese chemical producers would try to pull a fast one on the party. The party also almost certainly provided capital for a lot of these businesses.