Dr. Si-Woo(S.W.) Yoon received a Ph. D. degree in 2003 on plasma physics working with ASDEX-Upgrade project at the Technische Universitaet in Munchen, Germany and for more than 20 years since then, has been working on Hanbit/KSTAR project and the fusion related R&D acitivites at KFE which include tokamak experiments, operation, numerical analysis, and the reactor design. He was appointed as the director of KSTAR project since 2018 and has been serving as the vice-president of KFE since 2022.

Dr. S.W. Yoon has been actively involved as a Korean member in the international programs, such as the Scientific and Technological Advisory Committee for ITER (ITER STAC, 2018~) and the Coordinating Committee of International Topical Physics Activities (ITPA CC, 2016~). He has been appointed as the chair of ITPA CC since 2022.