Youngho Song received his master's degree in polymer engineering from INHA University in 1992 and is now pursuing his PhD in Environmental Engineering. He worked as a research engineer at HanWha Solution Co., Ltd.(1991~1999). He has been working as a vice president at Ecophile Co, Ltd., since 2006 for the contaminated soil and groundwater remediation business in South Korea, Middle East, and Indonesia. His R&D interests are the development of carbon-reduced remedial engineering and processes, including LCA and recycling.

Gun Yong Kim is a master's student majoring in Program in Circular Economy Environmental System at Inha University. He received his bachelor's degree in environmental engineering from Inha University. He has 11 academic presentations and 2 publications. He is currently conducting research on the life cycle assessment of hydrogen and environmental analysis of recycling of electrical and electronic products. His research interests include life cycle assessment, hydrogen technology, and CFP of steel products.

Da-Yeon Kim is a Ph.D. candidate in Environmental and Industrial Engineering at Inha University. Her work in this field has resulted in six publications, participation in ten projects, and recognition with two awards. Her primary research interests include life cycle assessment, circular economy, and remanufacturing.

Yong Woo Hwang is a Professor at the Department of Environmental Engineering, Inha University, Korea. He is the President at the Korea Environmental Management Association. He received his Ph.D. in Urban Engineering at the University of Tokyo. He has published 246 papers in various journals, and his work in Environmental Engineering has resulted in 15 publications, 28 patents, 21 projects, and 7 awards. His research interests include life cycle assessment, carbon neutrality, circular economy, environmental management, environmental policy, and environmental engineering