Ray is a Senior Metallurgist with New Porgera Limited, based at the Porgera Gold Mine in Papua New Guinea. He brings over 13 years of experience in gold processing and operations across Australia and PNG. After starting his career as a Graduate Metallurgist at Granny Smith Mine in Western Australia, Ray went on to work with Core Resources in Brisbane before joining the Porgera Gold Mine in 2015. Throughout his career, he has advanced through various technical positions, contributing to enhancements in ore blending, forecasting, and overall plant performance. During Porgera’s care and maintenance period in 2020, Ray played a key role in providing metallurgical support during shutdown, commissioning, and ramp-up activities. In his current role as Senior Metallurgist, Ray is passionate about driving continuous improvement and fostering the growth of early-career metallurgists.

Carl is a graduate of The University of Adelaide with a BE in Chemical Engineering with Honours in Minerals Processing. His mining career began as a Metallurgist at Glencore working in the concentrators at Mount Isa Mines and McArthur River Mine over 7 years. Carl joined Develop in 2025 as Metallurgy Superintendent for the Woodlawn mine commissioning and ramp-up phase. He now works as a processing specialist for Develop.

Matt was a graduate of the University of Queensland and has been a Metallurgist for 15 years. Over this time he has worked across a variety of operational and group roles, with experience ranging from mill design and operational readiness through to commissioning and operations. Matt has worked for Evolution Mining for over 8 years, with a significant portion of that time focussing on the Mungari plant expansion. During this project Matt undertook various roles to support the success of the project from Lead Process Engineer, Operational Readiness Manager, and Commissioning Manager. Matt is now Principal Metallurgist at Evolution Mining and continues to support the business through technical studies and operational support.

Metallurgical Engineer with 30 years' experience in gold processing. Sound experience in the management of technical teams during project work, detailed design and plant commissioning. Was responsible for the design & commissioning of 4 BIOX plants implemented successfully globally. A good combination of practical and theoretical experience with involvement in a wide spectrum of projects including R&D, feasibility studies and project development. Education: B Eng (Hons) (Metallurgy) 2000 – 2002 University of Pretoria B Eng (Hons) (Technology Management 2008 – 2009 University of Pretoria

With nearly three decades of experience, David Way joined Sedgman as Process Solutions Manager in 2020, providing expert technical advice on the development of metals projects. He is co-author of the book “Geology and Mining: Evolution of Best Practice Compilation 16” for the North American Society of Economic Geologists, which was released in 2025.