Hao Bai received his Ph.D. in Metal Engineering from Tohoku University in Sendai, Japan, and is now a professor at the School of Metallurgy and Ecology, University of Science and Technology Beijing. He is mainly engaged in industrial ecology, metallurgical cleaner production, and new technology research on energy and environmental protection. He presided over and participated in more than 10 natural science foundation and key projects, 863 provincial and ministerial vertical research projects, and published more than 100 papers at home and abroad. He is currently a senior member of the Chinese Society of Mechanical Engineering, a director of the Industrial Furnace Branch of the Chinese Society of Mechanical Engineering, a member of the Japanese Iron and Steel Society, a member of the American Society of Mining, Metals, and Materials (TMS), a consulting and evaluation expert of the China International Consulting Engineering Company, a review expert of the National Scholarship Fund, and an expert of the China Association of Industrial Energy Conservation and Cleaner Production.