If that is true ("equal credit act is the only thing stopping it in the US"), then race is the strongest factor[1] for credit scoring, so I'm not sure how China does it (Chinese population is racially homogenous)?
[1] https://en.m.wikipedia.org/wiki/Five_Races_Under_One_Union [2] https://en.m.wikipedia.org/wiki/Ethnic_issues_in_China