Chair, IUCN Asia Regional Committee
President, Korea National Committee for IUCN
National Committee for Cultural Heritage Administration of Korea
Commissioner, Steering Committee of Jeju World Natural Heritage
Preparation Committee for COP 12 of CBD Korea
Advisory Committee of the Ministry of Administration and Safety of Korea for
DMZ

● Professional experience

1993. 9 – Present    Professor, Director of Herbarium (NPRI)
                               Natural Products Research Institute
                               Seoul National University
                               Seoul, Korea
2005. 8 – 2006. 8.  Visiting Scholar
                               Section of Integrative Biology
                               The University of Texas at Austin
                               Austin, TX 78713
                               USA
1998. 8 – 2000. 1   Visiting Scholar
                               Laboratory of Molecular Systematics
                               National Museum of Natural History
                               Smithsonian Institution
                               Washington, DC 20560
                               USA
1990 – 1993           Research Scientist
                               Laboratory of Molecular Systematics
                               National Museum of Natural History
                               Smithsonian Institution
                               Washington, DC 20560
                               USA
1989 – 1990           Post-doctoral Research Associate (Dr. Elizabeth A. Zimmer)
                               Department of Biochemistry
                               Louisiana State University
                               BatonRouge, Louisiana, USA
1986 – 1989           Teaching Assistant
                               Department of Botany

                               University of Texas at Austin
                               Austin, Texas, USA
1985 – 1986           Research Assistant
                               Department of Botany
                               University of Texas at Austin
1983 – 1984           Lecturer
                               Department of Botany
                               Seoul National University
1980 – 1982           Official Assistant
                               Department of Botany
                               Seoul National University
                              

● Research interests
                             

 Phylogenetic studies of flowering plants.
 Molecular evolution.

● Professional memberships

Korean Society of Plant Taxonomists
The Botanical Society of Korea
American Society of Plant Taxonomists
Botanical Society of America
The Botanical Society of Japan