Few sexy links.
http://blogs.wsj.com/chinarealtime/2012/10/19/how-hong-kongs-legal-system-enables-china-cash-flight/?mod=WSJBlog
http://www.chinalawblog.com/2012/10/getting-money-out-of-china-thats-illegal.html
http://www.china-briefing.com/news/2011/11/11/getting-cash-money-rmb-out-of-china.html
On the last link "It should be noted, though, that foreign nationals can transfer any amount under or equal to the equivalent of US$500 once per day without providing proof that the money was legitimately earned or that taxes have been paid on it."
You set that low value direct debit up.