Virginia has over 30 years of in-depth operational and technical experience in copper, nickel, lead-zinc and precious metals extraction across heap leaching, gravity concentration, flotation, grinding and fine grinding and roasting. She is now with the Glencore Copper group working on establishing Technical and Best Practice standards in the areas of project design, development and operation.

Borhane Ben Said studied chemical engineering at the Hochschule Niederrhein in Krefeld (Germany). In his bachelor thesis, he dealt with the investigation and optimisation of the flotation process of calcium fluoride. As part of this work, he developed a novel method for determining the calcium fluoride content in fluoride ores using Fourier transform (FT) Raman spectroscopy. He was able to win first place at the international "Process Simulation Cup 2019" organised by Chemstations Europe GmbH. In this process simulation competition, prospective engineers spend a whole year developing optimisation solutions for a process problem. In his master's thesis, he dealt with the investigation of the characteristic structures of flow fields in stirred tank reactors. Since 2021, he has been working on his PhD at the Helmholtz Institute Freiberg for Resource Technology, where he is investigating the flotation process of scheelite.

Ralph Smith, Global Services Director of GEOVIA at Dassault Systèmes, has contributed to the mining industry in operations, consulting, and technology for the past 25 years. Applying Dassault Systèmes solutions, he is driving the planning process beyond mining extraction to the next steps in the value chain, incorporating the beneficiation process in the virtual twin, addressing cost, recovery and GHG challenges. Ralph is passionate about mining and the drive for the transformation required for the industry to address current and future requirements. He believes in partnering with the industry to deliver the value from transformation through Outcome-Base engagements. He commenced his career with Aberfoyle on the West Coast of Tasmania before working with a leading mining solution group (Surpac Software International) before entering the consulting services with AMDAD.

Dr Shane Usher is a Research Fellow in the Department of Chemical Engineering at The University of Melbourne. He has an extensive list of publications related to the characterisation of dewatering properties for mineral slurries and the subsequent prediction of dewatering processes including sedimentation, gravity thickening, centrifugation and filtration. His research has identified the impact of shear processes and flocculated aggregate densification in enhancing the rate and extent of dewatering. Shane has also published in the areas of wastewater sludge processing and faeces characterisation for non-sewered sanitation. Shane also has an interest in "space analogues" and is developing full scale vacuum chambers. The authors acknowledge the funding support from the Australian Research Council for the ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals, grant number CE200100009.

Metallurgical Engineer graduated from Universidade Federal Fluminense, Brazil. Currently, PhD candidate at the Swinburne University of Technology, Melbourne, Australia. She is researching the iron ore sinter mineralogy and its properties, such as strength, reducibility, and porosity.

I Bradley Nemutudi obtained my BSc (Physical Sciences) majoring in Geology and Physics in 2016 and Honours degree in Physics in 2017 and Master of Science in Physics in 2020 at the University of Limpopo. Currently I am enrolling for a full time Doctor of Philosophy in Physics in the University of Limpopo (Materials Modelling Centre). I specialize in the computer simulations of flotation reagents of different minerals including sperrylite and their surface properties. I have attended and gave presentations of my work at different conferences such as Centre for High Performance Computing (CHPC) and South African Institute of Physics (SAIP).