The Commodity Futures Trading Commission staff has issued a no-action letter to Hong Kong Futures Exchange Limited (HKFE) approving HKFE’s mini futures contracts based on the Hang Sang Index (HSI) and Hang Sang China Enterprises Index (HSCEI) for trading by U.S. persons.  

http://www.cftc.gov/newsroom/generalpressreleases/2009/pr5603-09.html