Prof. Tetsuya Nagasaka is Vice President for Social Outreach & Research Collaboration at Tohoku University and Director of the New Industry Creation Hatchery Center (NICHe). He received his Bachelor's, Master,'s and Ph.D. degrees in Metallurgy at Tohoku University in 1980, 1982, and 1985, respectively. Since completing his Ph.D. at the graduate school of engineering at Tohoku University, Tetsu has extensively conducted basic physicochemical research on the manufacturing process of base metals such as steel, aluminum, and so forth. The research conducted during this period is classified into the thermodynamic properties of molten iron alloys and slag, heterogeneous kinetics between molten iron/slag and gas, and phase equilibrium of multicomponent oxides. In parallel with these topics, he has also carried out environmental and recycling-related research, such as the thermodynamics of base metal scrap recycling, physicochemical studies on waste melting treatment methods, and research on the fixation of CO2 in the atmosphere using steelmaking slag. Recently, he has focused on minor elements such as zinc, phosphorus, and manganese that accompany the steel flow, and because of the extremely huge main flow of steel, the steel industry plays a decisive role in the recycling of the alloying elements.