Director General,
International Atomic Energy Agency

President, Korea Atomic Energy Research Institute

Former IAEA Director,
Division of Radiation, Transport and Waste Safety

Director,
International Atomic Energy Agency

Chair,
RCA MTSC Working Group

Professor,
Korea Advanced Institute of Science and Technology

Secretary General,
Asian Regional Cooperative Council for Nuclear Medicine

President,
Vietnam Atomic Energy Institute

Senior Researcher,
National Nuclear Energy Agency of Indonesia

Director,
RCA Regional Office

Former Deputy Secretary General,
Office of Atoms for Peace

Principal Researcher Korea Atomic Energy Research Institute

Manager,
Korea Institute of Radiological and Medical Sciences

RCA Focal Person,
International Atomic Energy Agency

Australian Nuclear Science and Technology Organisation

Principal Researcher,
Advanced Radiation Technology Institute(ARTI)

Former President,
Korea Institute of Radiological and Medical Sciences

Professor,
Department of Nuclear Engineering, Hanyang University

President,
KEPCO International Nuclear
Graduate School