There is another site in Anyang, Henan:

http://www.ayhx.com/

Again, entirely in Chinese, and no e-mail address in sight, but there's a
phone number. It's a bit farther from Beijing but it looks like a decent
possibility.

I spy, with my Google Maps eye: http://tinyurl.com/j6awc (36° 8' N,
114° 20' 30"E)

Their site has a 16minute WMV (129MB) showing the scope of their
facilities and activities and includes a couple of shots of some glider
aerobatics. It looks like they have a Grob G103 Twin Astir and a
Jantar 2 and use aerotow launching. There is a snapshot of a launch
grid with a German ASH25(?) ID:X3 and two other gliders (one possibly
from Switzerland). Does anyone have any comments about flying from
Anyang?

--
Neil