I'm trying to find something on that now. Here's one site which has some interesting information:
Maps Locating Fossil Hominids from China
MAP SHOWING MAJOR SITES OF MODERN H. sapiens IN CHINA:
Until recently fossils of modern H. sapiens in China were relatively few and far between. The most important specimens, consisting of three complete skulls and other skeletal remains, were discovered at the Upper Cave at Zhoukoudian in the 1930s. The dating of these remains has been problematical with age estimates ranging between 11-26,000 YA. The Upper Cave remains have been said by some to show closer affinities to Upper Paleolithic Europeans rather than living Chinese. Other researchers, however, see the remains as representative of an East Asian "proto-Mongoloid " population. The oldest modern human fossils in China date from between 35-60,000 YA from Salawusu in Inner Mongolia, Laishui in Hebei and Liujiang in Guangxi. These finds preserve archaic features reminiscent of pre-modern Chinese fossils from sites like Xujiayao. Other modern human fossil remains from both North and South China date from the terminal Pleistocene, approximately 10-12,000 YA.
Very interesting.
Mair said that during his searches dealing with the Tarim Mummies they came across human artifacts dated to 250,000 years ago in that region. (he just mentioned this in passing in his book)