I have visited China. Trade shows go on all the time for many industries and hire Chinese company representatives that work to promote U.S. sales in China.
Met our reps in China, gone to many dinners with them and worked trade shows there. The reps serve as translators and negotiators.
However, there is enormous risk as the Chinese want our proprietary information so as to reproduce themselves. It is very difficult doing business with them, once a deal is established, as China does not recognize some contract stipulations.
Only sell to U.S. companies already established in China.
All the more reason to keep their trash out of our country.