My daughter has a scholarship and a Letter of Invitation to study Chinese at a public uni. here in Henan. I teach at the same university on a Z visa. She is on a S2 visa now (multiple-entry) and is a U.S. citizen, like me. Can she get her X1 in Hong Kong? Where should she go and aside from her passport and the Letter of Invitation what else would she need?
Thanks!

The first place I would ask, would be the university admissions office. They should know the answer. If they don't, then try going to the Foreign Affiars Office (technically they employ you) at the university, and if they ask then the admissions office is more likely to get off their lazy butts and find out.

You could also ask at the PSB in Zhengzhou. When I lived there, they were very helpful.

You need to remember that each province applies the rules differently. Henan are probably not as anal about how they do things. Yunnan are the worst that I have come across in China. You really should ask in Henan.