In case anyone is in the part of the world and wondering, I managed to locate the "Beijing Warhammer Club" this last weekend! They're a small outfit with one gaming table, but the guy who works there speaks English and supposedly the owner is from the UK. It sounds like the hobby is very new in China (not surprising given the cost and the recent emergence of their middle class) but there are a good number of people around who play. Their number is (010) 6403 7588.
If anyone is in town looking for a game, send me a PM and I'd be happy to lug my minis down on a weekend!