The U.S. does more to protect a user of a mark who neglects to register. For example, there is a "Burger King" restaurant that used the mark prior to the well-known international chain. That business continues to use the mark for its restaurant and can even exclude the well-known company from a limited territory. https://en.wikipedia.org/wiki/Burger_King_(Mattoon,_Illinois...
The Chinese system, by contrast, seems very unforgiving to a prior user who neglects to register.