Key question: will Chinese startups be required to register as US companies :)
I'm not aware of any foreign funded startups in China currently. I mean, there must be some small players with private foreign funding, but it is so easy to get Chinese funding I'm not sure why anyone would even bother.
[0]: https://www.zhihu.com/question/19634851/answer/13095653
But that is just a guess by an amateur, we have to wait to see how this turns out.