Deddy is a postdoctoral fellow at CSIRO Mineral Resources. His research interest is extractive metallurgy to produce and separate various metals or minerals from natural ores, wastes, and extraterrestrial planetary regolith, e.g. Mars. One of his current projects is valuable metals and minerals recovery from mine tailings.

Sanjay Singh is a Ph.D. research scholar in Geotechnical Engineering at the Indian Institute of Technology, Patna. His work focuses on sustainable mineral recovery, particularly the extraction of critical minerals from industrial wastes like red mud and fly ash and PCBs. With a background in Civil Engineering and a Master’s in Earthquake Science and Engineering from IIT (ISM) Dhanbad, he combines geotechnical modeling, GIS, and machine learning in his research. Sanjay has presented at several international conferences and authored book chapters on slope stability and environmental geotechnics. He recently received the Best Paper Presentation Award at the 3rd International Conference on Safe & Sustainable Mining Technologies. His goal is to advance environmentally responsible solutions for mineral extraction and slope stabilization.

Jai Shree is a PhD student at RMIT University working in the field of sustainable materials recovery and green chemistry. Her current work focuses on developing eco-friendly hydrometallurgical processes for recovering rare earth elements from magnet waste, with the aim of supporting circular economy practices and reducing environmental impact. With a background in chemical sciences, she is committed to advancing innovative solutions for critical material supply challenges across high-tech and renewable energy sectors.

Ruhany Azeez, is an early-stage researcher at the Department of Materials and Environmental Technology at Tallinn University of Technology. With a background in physical sciences and a major in analytical chemistry, Ruhany has a solid foundation in chemical sciences, equipped with skills in conducting precise analyses, advanced instrumental handling, and understanding and applying basic computer science principles in chemical laboratories. She brings experience from both academic and industrial environments, where she has worked with multidisciplinary R&D teams. Ruhany’s expertise includes sample analysis and characterization, nano material synthesis, composite development, and separation techniques. She also has experience in conformity assessments and accreditation related to ISO 17025 (2017), covering general requirements for the competence of testing and calibration laboratories, as well as Good Laboratory Practices (GLP). During her doctoral studies, Ruhany has transitioned her expertise to the field of material and environmental technology, contributing to advancements in mineral processing and sustainable technologies.