Dr. Akira Otsuki is a Visiting Professor at Luleå University of Technology, and the Unit coordinator and leading professor of the unit "Mine Tailings" at Universidad Adolfo Ibáñez. He is a member of several academic societies as well as an editor of academic journals including ChemEngineering and Recycling. He also serves as a guest editor of special issues, including "Colloidal/Fine Particle Aspects of Mine Tailings". His research focuses on characterization and processing of complex materials, including waste materials, natural ores, and colloids. He has been developing and running national and international research projects on his research focuses. Adrian Keith R. Caamiño is currently a Faculty of the Mining Engineering Program of the Department of Materials and Resources Engineering & Technology of Mindanao State University - Iligan Institute of Technology in the Philippines.

He recently obtained his Master of Science in Resources Engineering degree from the 'Université de Liège in Belgium as his host institution together with the Université de Lorraine and Luleå University of Technology as partner universities. His research focuses on geometallurgy, characterization of materials, resource estimation as well as mine water quality assessment and mine water treatment. He continues to mentor and involves himself on different research projects related to his research interest. Dr. Sibele Nascimento is a mining engineer, with specialization in georesources and extensive experience in mine wastes characterization. For her PhD, she characterized the Queen and the King River system to evaluate the environmental impacts of one of the worst cases of acid mine drainage in Australia and to assess the economic potential for the tailings stored in the King River delta. Previously, she concluded a master's degree in the EIT labelled Emerald master's in resources engineering in Europe, with a robust background in mineral characterization, geochemistry, mineral processing, geometallurgy and circular economy. Currently, Sibele works for the University of Queensland and does mineralogical and geochemical characterization of mine wastes across Australia.