Third party payment system could also be used to move large volume of money...
Bank transfer may be banned as well, it is still unclear, everything is still unclear actually...
The central bank haven't said any words for this situation publicly.
Well, is not the best but is the way that goes in other big exchanges like bitstamp and gox. Its useful to move large volume of money.
What is important is that could be a demostration that dipositing in exchanges is not baned in china, only more difficult.