Shuming Wen is a Professor in the Department of Mineral Process Engineering at Kunming University of Science and Technology (KUST) in China. He received his PhD from KUST in 1989. His research focuses on the surface chemistry of flotation, fluid mechanics, and the comprehensive utilization of refractory metallic mineral resources. He has received numerous professional awards, and is widely published in the field.Jian Liu is currently an Associate Professor of Mineral Processing at Kunming University of Science and Technology (KUST), China. He got his BS degree and PhD from KUST in 2009 and 2013, respectively. He worked as a one-year academic visitor at the University of Queensland, Australia from April 2018 to April 2019. His research interests are related with mineral processing, especially in the flotation theory and technology of nonferrous and iron ores, such as the surface-interfacial chemistry, computer simulation using DFT, development of flotation reagents and etc. He has authored/co-authored more than 30 papers in international refereed journals. In 2017, he was award 1st class Natural Science Award of Yunnan province. In recognition of his outstanding research achievements, he was honored as youth talent support program of Yunnan province in 2018.Dr. Jiushuai Deng is currently a Professor in the School of Chemical & Environmental Engineering, at the China University of Mining & Technology (Beijing). He obtained his Ph.D. degree from the Kunming University of Science and Technology. He completed a period of Postdoctoral Fellow Research work in the Faculty of Applied Science and Engineering at the University of Toronto, Canada, and he was a Visiting Scientist in the Commonwealth Scientific and Industrial Research Organization, Australia. He is a distinguished young scholar in the development of innovative, cost-effective technologies for the metallic mineral processing, and has a proven track record of new technology developments. His publication record includes 60 papers published in prestigious refereed journals. He is a co-inventor on 26 patents and a co-applicant on another 12 patent applications. In recognition of his outstanding research achievements he awarded a Fok Ying Tung Education Foundation Award, a Reserve Talent of Young-Middle-aged Academic, Technical Leader of Yunan province and Qinglan Scholar of KUST, etc.