Mr. Onchan, a national of Thailand, served as a Panel Member from 2003 to 2008. 

Mr. Onchan taught at the Faculty of Economics of Kasetsart University in Thailand for 26 years, including a term as Dean. He served as Vice President of Huachiew Chalermprakiat University, and later on, joined the Thailand Environment Institute (TEI) as Vice President, and became TEI’s President in 1998. He was appointed President of the Mekong Environment and Resource Institute (MERI) in 2000. He has served as Advisor to the Prime Minister, and to the Minister of Science, Technology and Environment, and held several high-level government positions. 

Mr. Onchan has been project director of over thirty research projects, and he is co-author of numerous technical and research papers on rural development, natural resources and environmental management. He sits on many editorial boards, and has been a consultant for many international organizations. Currently, he serves as a chairman of the Board of Directors of the MERI, member of National Research Council for Economics, and a Director of the International Global Environment Strategy (IGES) based in Japan. He holds a Ph.D. in Agricultural Economics from the University of Illinois.