Here's the REAL question - if the Chinese government DOES try to ban Bitcoin (which has been rumored by a few places over "capitol flight" and "funding illegal activity" worries), what happens to Bitmain BW.com and the other miner manufacturers in China?
Innosilicon can just revert to their pre-mining semiconductor house status, but most of the rest don't HAVE a fallback position....
They are businesses, so they can easily just set up operations abroad - Chinese businesses are allowed to have overseas subsidiaries.