Prof. Il Sohn is the Director of the Research Institute of Iron and Steel Technology (RIIST) at Yonsei University. He is a member of the National Academy of Engineering of Korea and currently serves as the Editor of Metallurgical and Materials Transactions and Associate Editor of Journal of Sustainable Metallurgy. He has published over 130 SCI(E) peer-reviewed articles in renown journals, over 20 intellectual properties, and is the author of several books regarding iron and steelmaking research. He has worked as an engineer within the petrochemical and steelmaking companies including LG-Caltex and U.S. Steel providing both industrial and academic insights to a broad range of topics including steels. He worked as a special project professor at The University of Tokyo and Central South University working on topics of green steelmaking, continuous casting, and clean steels. His research group specializes in the development of high aluminum steel mold fluxes, inclusion control in steelmaking, and green iron- and steelmaking based on thermodynamics and kinetics in the field of chemical metallurgy. He has undertaken more than 80 industrial and national projects sponsored by POSCO, Hyundai Motors, DB Metals, RIST, Ministry of Trade, Industry and Energy, Ministry of Science and ICT and others. Through his industry and academic experience of more than 20 years, Prof. Sohn has distinguished himself to be one of the leaders for innovative and far-reaching expert in green iron and steelmaking research and education.