Article with a small interview with the CEO of BTC China.
http://www.wired.com/wiredenterprise/2013/10/btc-china/The exchange, called BTC China, has been growing rapidly for the past few months as demand for bitcoins has surged. Today, BTC China accounts for just under 33 percent of trades. That’s ahead of long-time bitcoin exchange Mt. Gox (23 percent) and another rival, the Slovenia-based BitStamp (25 percent). Mt. Gox has long been the most popular exchange — and the most well known — but it has now fallen behind not one but two rivals.