Ambassador, Permanent Representative of the Representative of Korea, New York, Permanent Mission of the Representative of Korea since 1991. Senior Protocol Secretary to the President, Representative of Korea, 1988-1991. Rch Commissioner, Institute of Foreign Affairs & National Sec, Ministry of Foreign Affairs, Representative of Korea, 1988.
Ambassador at Large, 1987-1988. Ambassador to Nigeria, 1984-1987. Minister, Embassy of the Representative of Korea, United States of America, 1981-1984.
Director-General, Treaties Bureau, 1980-1981, Deputy Director-General, American Affairs Bureau, 1978-1981, Mininstry of Foreign Affairs.