1982, BA in English Literature, Seoul National University; 1991, MPA and 2005, doctorate in Environmental Engineering, Seoul University. With MOE: 1993-94, Director, Legal Affairs Office; 1994-96, Internship, California Environmental Protection Agency and Department of Ecology, State of Washington; 1996-98, Senior Secretary to Minister and Director, Waste Recycling;1998-2001, Counsellor, Permanent Mission of Republic of Korea to UN; 2001-03, Director, Global Environment, Waste Recirculation Policy, Planning and Budget Office; 2003-04, Officer of Spokesperson; 2004-06, Director General, Resource Recirculation; 2007-08, Director General, Water Supply and Sewerage Policy; 2008-10, Director General, Climate and Air Quality Management; since 2010, current position.