They apparently trade on the Hong Kong Derivatives Exchange which I also can not find any information on.Both companies have legitamate websites but that doesn't mean anything really.If anyone has had any experience with this, please let me know.Thanks

Dongyin Futures also trades on the Zhengzhou Commodity Exchange."As a non-profit and self-regulated legal entity, ZCE adopts membership system and provides a marketplace with associated facilities and services for futures trading. ZCE's transparent and efficient market structure, coupled with its secure, speedy, easy access, flexible electronic trading platform, information release system and membership service system, allows ZCE to provide Chinese market participants with guarantee of direct access to its futures market."