Since 1990, Sima Nan has collaborated with the China Association for Science and Technology (CAST) and is now an investigator at a new branch of CAST, the Committee of Scientific Thinking, which he helped found. The agency will test claims of the paranormal, and has a standing offer of ¥ one million to anyone who can perform one act of "special ability" (i.e. paranormal) without cheating.[3][4] American sceptic James Randi made an agreement with Sima that anyone whoever wins his One Million Dollar Paranormal Challenge would automatically win Sima's million yuan.[10]

http://en.wikipedia.org/wiki/Sima_Nan