Ma Yan Edit History Talk0 1,983pages on this wiki Dr. Ma Yan is the Gansu director of Operation Blessing International. Contents 1 News and recent developments 2 See also 3 External links 4 Contact News and recent developmentsEdit See alsoEdit External linksEdit ContactEdit Read more Catlin Powers Teong Tan July 2006: The Solar Cooker Development and Application in China - Han Tingcun Han Tingcun Categories: Individuals China Gansu Add category Cancel Save