<EDUCATION>
- Feb. 1985 B.A. in Economics, Yonsei University, Seoul, Korea
- Sep. 1991 Certificate in Diplomatic Studies, Oxford University, United Kingdom
- Sep. 1992 M.A. in War Studies, King‘s College London(KCL), United Kingdom

<CAREER>
- May 1985 Passed High Diplomatic Service Examination
- Jun. 1985 Joined the Ministry of Foreign Affairs (MOFA)
- Jul. 1986 Served as an intelligence officer in the Republic of Korea Air Force (~Mar. 1989)
- Jun. 1994 First Secretary, Korean Permanent Mission to the United Nations, New York,
U.S.A.
- Jun. 1997 First Secretary, Korean Embassy in the Republic of Zambia
- Jun. 1998 First Secretary, Korean Embassy in the Republic of Tunisia
- Feb. 2001 Assistant Secretary, Secretariat of National Security Council (NSC)
- Feb. 2002 Assistant Secretary for Diplomacy and Trade Affairs, Office of the President
- Apr. 2003 Director, Planning and Research Division, Institute of Foreign Affairs and National Security
(IFANS), Ministry of Foreign Affairs and Trade (MOFAT)
- Feb. 2004 Advisor to the Vice Minister, MOFAT
- Sep. 2004 Director, United Nations Division, Office of Policy Planning and International Organizations,
MOFAT
- Dec. 2005 Counsellor, Korean Permanent Mission to the United Nations, New York, U.S.A.
- Jul. 2008 Minister, Korean Embassy in the Islamic Republic of Iran
- Jun. 2010 Deputy Director-General, International Organizations Bureau, MOFAT
- Jul. 2010 Senior Advisor to the Minister of Foreign Affairs and Trade
- Dec. 2010 Senior Assistant Secretary for Strategic Affairs, Office of the President
- Aug. 2012 Director-General, North Korea Nuclear Affairs Bureau, Ministry of Foreign Affairs (MOFA)
- Oct. 2014 Ambassador Extraordinary and Plenipotentiary to the Republic of Serbia
- Sep. 2016 Secretary to the President for Foreign Affairs, Office of the President
- Sep. 2017 Special Representative for Korean Peninsula Peace and Security Affairs, MOFA