Seb recently joined Calix as Senior Business Development Manager with focus on ZESTY technology commercialisation. Seb spent over 20 years in Iron ore, started initially in an operational role in the Pilbara with Rio Tinto Iron Ore and moved into Resource Development where he co-developed and executed bench scale test work through to pilot plant scale and full metallurgical performance plant trials to provide scale-up expertise for the engineering designs, including capital and operating costs for global Iron ore projects. Seb joined Rio Tinto Iron Ore Sales & Marketing in 2010 and transitioned away from projects and commenced interactions and extensive travel to all customer markets and iron ore operations to develop and maintain customer relations through delivering the product strategy, create customer techno-commercial segmentation matrixes and develop Customer Relation Management systems. Seb moved to Fortescue Metals Group in 2019 to be a part of the integrated Operations and Marketing team, where the shift towards ‘green’ iron making commenced. Through developing a marketing perspective on sustainability, by creating initiatives through customer collaboration on pre-processing of iron ores, hydrogen and non-hydrogen direct reduction, and other de-carbonisation initiatives.

Professor Geoff Brooks has published over 300 papers on fundamentals aspects of iron and steelmaking, has been invited to speak at many leading Universities around the world and has worked closely with steel companies in Europe, Asia and North America. He is currently the Joint Swinburne/CSIRO Professor of Sustainable Mineral Processing. Geoff has been previously an Associate Professor at McMaster University in Canada and a Senior Lecturer at University of Wollongong. In 2013, Geoff was awarded the prestigious John Elliott Lectureship Award by the AIST. He was also awarded the 2018 EPD Distinguished Lecturer by the TMS and the 2023 Bessemer Gold Medal by the IOM3. He is a fellow of the Institute of Materials, Minerals and Mining.

Dr. Sa Ge (Gesa) is a Process Metallurgy Specialist at Hatch, with 15 years of experience in development, engineering, research, and consulting in process metallurgy, and in major metals projects across North America, Asia, and Africa. His work focuses on innovative metallurgical processes by integrating fundamental research, technology development, project delivery, and strategic analysis to support a sustainable steel value chain. Dr. Gesa earned his B.Eng. and Ph.D. in Materials Engineering from McGill University and serves as an adjunct professor in the Department of Materials Science and Engineering at the University of Toronto. He is a licensed Professional Engineer in Ontario. Dr. Gesa was recognized in 2025 with the CIM-MetSoc Brimacombe Award for early-career achievement and outstanding contributions to the Canadian metallurgical and materials community.

Dr Chew is a Principal Technology & Development Engineer in Coke & Ironmaking at BlueScope, with postgraduate qualifications in technical and business disciplines. Responsibilities include investigations into current and emerging iron and steelmaking technologies, with a focus on process analysis, raw materials assessment, and research translation. In recent years, he has increasingly worked on BlueScope’s decarbonisation initiatives, including NeoSmelt’s next generation electric smelting furnace pathway for Pilbara ores.

Deborah was appointed Chief Executive, Climate Change & Sustainability at BlueScope in March 2025, leading the company’s global climate action and decarbonisation strategy, and the company’s commitment to sustainable practices. Deborah is responsible for driving progress toward BlueScope’s 2030 emissions reduction targets and 2050 net zero goal, while ensuring compliance with evolving sustainability reporting standards. Deborah has over 25 years of international experience in the resources industry, including 16 years in senior finance roles, she brings a unique combination of strategic financial acumen and sustainability leadership to her work and is recognised for fostering innovation and stakeholder collaboration across global markets. She started her career as a metallurgical process engineer in the Pilbara. Deborah is a Fellow of the Australasian Institute of Mining and Metallurgy, a Graduate of the Australian Institute of Company Directors, and holds a Bachelor of Metallurgical Engineering (Hons) (UNSW) and Master of Business Administration (UQ).