the Foreign Affairs and Unification Committee, National Assembly of the Republic

Center for International Law, KNDA

Jejudo Joa

Korean Institute of Southeast Asian Studies

Korea Institute for National Unification

Center for International Law, KNDA

Department of International Economy and Trade Studies, Korea National Diplom

DongSeo University

Kanagawa Ken Council

Faculty of Law, Keio University, Political Science

Jeju Research Institute

HEALIENCE

Former Ambassador to Conference on Disarmament, India

Jeju National University