Alex is an independent consulting process engineer specializing in conceptual design and auditing of mineral comminution systems, including: designing grinding systems for studies or detailed design, executing metallurgical sample collection programs, peer reviews and design checks, supervising laboratory test programs, expert witness evaluations, and operating plant optimization studies.

Alex is actively involved in technology transfer, participating in conference organizing, by providing short courses, operating a YouTube channel, and offering guest lectures on grinding modelling and geometallurgy.

Alex G Doll Consulting Ltd. is the developer and operator of "the Internet's first comminution resource" at https://www.sagmilling.com. Web site contains a collection of both free and subscription-based calculation tools to aid metallurgical process engineers perform comminution calculations. The online library of technical articles contains several papers on metallurgical topics including comminution modelling, mass balance calculations and laboratory comminution testwork program information.

Bill is a mostly retired Mineral Processing Engineer specializing in grinding systems and grinding media applications. Bill has a BA in Chemistry from Coe College, Cedar Rapids, IA and a certificate from the University of Minnesota Carlson School of Management Academy. Bill began working in the mining industry in 1978 as a laborer at the Minorca Mine then moved to Erie Mining Co as a Chemist. He became the Laboratory Supervisor and was the Section Manager of the Grinding Section overseeing all aspects of the operation and maintenance of a 34 rod mill + ball mill + magnetic separation + flotation magnetic ore concentrator. In 1995 he began working for Magotteaux as a project engineer specializing in media wear, grinding efficiency and control projects. He began working for ME Elecmetal in 2010 as the Application Engineer in the new Grinding Media Division. He mostly retired in 2019 leaving behind a respected Application Engineering group working with mining customers worldwide. Bill presently works a consultant for ME Elecmetal part time and grandfather full time. He lives just north of the Iron Range in Northern Minnesota, USA.

Throughout his career, Donald Leroux has been involved in the development and implementation of new technologies in mineral processing plants. He has worked in operating plants, innovation centres, engineering firms and technology development firms, often in strategic positions with high level of responsibility. Those experiences exposed him to a wide spectrum of innovative technologies and operating practices, which include state-of-the-art metal accounting, deployed in multiple mineral processing plants around the world

Edward Wipf is an accomplished senior executive and consultant with 50 years of success across the mining, mineral, industrial manufacturing, and equipment buying industries. In his quest to make big rocks small, he has traveled over 5 million miles, visiting 68 different countries all around the world. Throughout his executive career, Edward has held leadership positions with numerous organizations, including the vice Chairman of the Bohringer Group Board of Directors. Currently he is consulting to Cem-Tec and CARBO.

Edward obtained his Bachelor of Science degrees in Chemical Engineering and Power Plant Energetics from University of Wisconsin. He then served as general/product manager for various companies, such as N.A., Polysius, Nordberg Mills, Metso, Svedala, MPSI, Hardinge and Allis Chalmers. In 2008-2010 he became the COO and vice president in Aerosion LTD. With all these experiences, he began to work as vice president responsible for the process and global business development comminution at Weir Minerals until 2015. In 2015, he started his own company, EdRockMan IV LLC. Now he is the CEO and president of that family-owned consulting firm which has grown to 25 products and 50 global members across 16 countries.

Frank Cappuccitti graduated from the University of Toronto in 1978 with a Bachelor of Applied Science degree in Mineral Processing Engineering.

From 1982 to 2002 he worked for Cyanamid and Cytec Industries in various positions becoming the General Manager of the Global Mining Chemicals Business in 1998. In 2002, Frank and his partner Randy Nix formed a new Mining Chemicals and Technology Company that would eventually become Flottec, where he was CEO and President. On November 2023, Flottec was sold to Nalco Water, a subsidiary of Ecolab, and Frank spent one year post sale as the VP of Strategy and Innovation to assist in the integration of Flottec. On November 1, 2024, Frank retired to live full time in his home in Jupiter Florida after 46 years working in the Mining Industry.

Graham Davey, Director, Stirred Mills at Metso. Graham is based in the UK providing stirred mill product management and process engineering for mining and engineering companies throughout the world.

Graham joined Metso UK in 1995 as an applications engineer, where he commissioned the first ultra fine grinding and flotation plant. Graham has been based in South Africa and the USA before returning to the UK, developing, and supporting the Metso stirred milling technologies and associated fine particle technologies.

Graham is a Chartered Engineer (CEng) and a professional member of the Institute of Materials, Minerals and Mining. Graham holds a Bachelor of Engineering degree in Minerals Engineering from the Camborne School of Mines and a Master of Science by Research degree from the University of Exeter.

Bachelor of Engineering Science, Master in Metallurgy, University of Atacama

MBA at the University of Chile in 2005. Master Black Belt with Falconbridge Canada (2005).

33 years of experience in mineral processing working in Chile, Mexico, Canada, Poland, Spain, USA, South Africa, India, Indonesia, Zambia, Peru.

World class expert in:

• Leadership and Management workshops for Managers
• Mine/Concentrator management systems: Models elaboration and implementation
• Geometallurgical model development and mine-to-plant-to-port short and long term planning
• Statistical analysis of plant data
• Flotation hydrodynamics. Inventor of the first digital portable Continuous Measurement J_g Meter. CMJ_g meter that measures J_g without any electrical nor pressure transduction.
• Chemical reagents for mining
• Copper leaching and bioleaching
• Sulfide flotation (Cu, Mo, Zn, Pb, Ni, Ag, Au). Engineering Design, Start up, Operation, Modeling
• Grinding, crushing, thickening, filtering

• Extensive experience in laboratory tests and pilot plants tests for sulphides and oxides

• Training and Experience in Six Sigma methodologies
• Engineering (Worked at Ausenco and developed activities with Hatch, JDS, Amex, JRI, Fluor, Davi, etc.)
• Preparation and presentation of Mineral Processing Courses
• Has worked with laboratories such as SGS, ALS, Aminpro, CIM, XPS, Universities, UBC, FLSMidth, Hazen). He has been Head of the Metallurgical Laboratory (Codelco).
• Has been part of teams that have developed conceptual, pre-feasibility, feasibility and details engineering.
• Part of start-up teams at Sierra Gorda (110 ktpd), Candelaria (35 ktpd and 70 ktpd), Punta del Cobre Biocobre (2.4 ktpd), Copper Mountain Canada (35 kptd)
• NI-43-101 Qualified Professional. Led the preparation of an NI-43-101 for a Atalaya Mining, Spain.

Positions

Currently Technology Manager at Nalco Ecolab, Vice President Technology at Flottec, Founder and Director at EM2PO, Project Manager, General Manager, Concentrator Plant Manager, Planning Superintendent, Operations Supervisor (hands on)

Success stories

• Lead a group to increase revenue from 170 million USD/y to 345 million USD/y, at a Cu, Zn, Pb operation, without extra capex and with the same human resources (Mexico)
• Lead revenues increase in about 50 million USD/y over the baseline at a Cu-Ni operation, with no extra opex-capex and with no new hires (Canada), by increasing throughput by 20% and Cu+Ni recovery in 5.7%
• Lead group to increase ore milled by 25% over baseline without lowering recoveries or concentrate grade (Cu, Zn, Pb Mexico)
• Part of the team that reached Commissioning McNulty class 1 at Bio Cobre (Chile) , at Montcalm (Canada) and at Candelaria in Chile where the steady state in the second concentrator was reached in 1 day, where he was team leader of the tailings and water system and team leader of the flotation area.

Dr Nesset has Bachelors, Masters and PhD degrees in mineral processing from McGill University where he has been an Adjunct Professor since 2012 in the Department of Mining and Materials Engineering with almost 50 years of experience in mill operations, industrial R&D, university research and as a consultant to the industry. His current areas of focus are on flotation hydrodynamics and self-heating of sulphide minerals, and he has been a contributor to the McGill Short Course series since 2003. Dr Nesset has also served as Chair of the Canadian Mineral Processors Society and is a Fellow and former Distinguished Lecturer of the CIM. He is based in Thunder Bay, Ontario and is the Director of NesseTech Consulting Services Inc.

Dr. Kumral is currently an Associate Professor in the Department of Mining and Materials Engineering at McGill University. He has over 20 years of experience in mining engineering research and teaching in Canada, the United Kingdom and Turkey. He obtained his PhD from the Department of Mining and Mineral Engineering at the University of Leeds in 2000. His research focuses on surface mining, mine systems optimization, reliability and maintenance analysis, and mine risk analysis. He has held many research grants individually and in collaboration with other researchers. Over the years, Dr. Kumral has published more than 100 papers in peer-reviewed journals and conference proceedings. His specialties are mineral economics, open pit mining, and mining reliability.

Rob McIvor is Principal Metallurgist at Metcom Technologies, Inc. and Consulting Metallurgist – Comminution, at Corem. He has a Ph.D. in Metallurgical Engineering from McGill University.

Rob has devoted his career to the design and optimization of plant grinding circuits. He worked in slurry pump and grinding mill application engineering at Allis-Chalmers, including tutelage by Fred C. Bond. Then while working in cyclone application at Linatex he discovered “The Functional Performance Equation” for ball milling circuits. From these experiences he worked with milling operations to develop a training program with all the steps to measure and increase the efficiency of plant grinding circuits. This program is certified by The Engineering Institute of Canada, provided in multiple languages, and has been utilized by nearly a thousand metallurgists world-wide.

Rob has been awarded the Art MacPherson Medal for “Significant Contributions to Comminution Technology”, was co-recipient of the CEEC writing Medal for Operations Improvement, and has been recognized as a Fellow of AIME.

Professional background:

SGS Canada: Director Technical Services (Mineralogy), NAM

Adjunct Professor McGill University, Department of Mining and Materials Engineering

Industry Expertise

• Over 25 years of experience in Minerals, Metal and Mining industry
• Advanced mineralogical applications (TIMA-X & QEMSCAN, LA-ICP-MS, EPMA, NIR, FTIR, isotopes) in mineral processing and geometallurgy of critical, strategic and precious minerals/metals, and industrial minerals (i.e., mica, talc).
• Mineralogical sustainability applications; mining and environment
• Development of new technologies (analytics for gold and industrial minerals mining)
• 100 publications in peer review and conference proceedings

Elizabeth is the Principal Geometallurgist at Glencore Copper, bringing over 20 years of expertise in process mineralogy, flowsheet development, and optimization across various commodities.

Until 2023, she worked at XPS, where she designed, managed, and led both large and small-scale process characterization and flotation programs. In her current role, Elizabeth collaborates with a multidisciplinary team on geometallurgy programs for large copper porphyry greenfield projects. She strongly advocates for the approach of "characterize more and test less" to design the most effective processes for ore treatment.

Gilles Tremblay is the Technical Manager of the International Network for Acid Prevention (INAP). INAP is a mining-industry led program and Mr. Tremblay coordinates activities that drives leading practice in acid and metalliferous drainage risk management. He is involved in the review and update of the GARD Guide, a leading practice guide for the prevention of mine-impacted waters and with the organization of the ICARD series of conferences. Prior to joining INAP Gilles worked for the Government of Canada for more than 33 years coordinating large multi-party R&D consortia related to environmental issues affecting the mining industry. Key activities include managing the Mine Environment Neutral Drainage (MEND) Program on acidic drainage and the National Orphaned/Abandoned Mines Initiative (NOAMI).

Graduate of the chemical engineering program at Université Laval, Olivier Gravel joined Corem as a researcher in 2017. Specialized in feature engineering, his prior academic activities led him to work on magnetohydrodynamics, thermal processes, and mixing technologies. His doctoral work, in collaboration with Corem, the University of Alberta and Surface Science Western, was focused on the impact of galvanic interactions on the conditioning of copper, zinc and nickel ores. More recently, he worked on vision and sensing systems development, particle sorting, surface chemistry and fundamental interactions in flotation. He is currently the senior researcher and team leader of the Mineralogy Analytics & Technology group at Corem, mainly focusing on machine learning, signal processing, advanced analysis of data, and applied process mineralogy.

Steve is recognized by his peers as one who gets to the crux of the matter. He is a dynamic professional with diverse experience and a unique perspective of industry drivers developed working in operations, technology development, and executive management roles in Base Metals, Coal, Precious Metals and Mineral Services. He is a graduate in Geological Engineering at the University of Toronto and received a PhD at the University of Nottingham. His 30+ year career in the Minerals Industry has included time with SGS, Teck Resources, Placer Dome Gold and Inco (now Vale). He is currently an industry consultant and an adjunct faculty member at Brigham Young University in Utah.

• Over 30 years of experience in
  • HPGRs and grinding mills (SAG / ball mills) in mining and cement applications
  • Design and analysis of standard and complex HPGR and comminution test work programs
  • Design and sizing of HPGR and comminution circuits
  • Process and equipment development in various comminution areas including dry air classification with a strong focus on HPGRs (several process and design patents)
  • Plant reviews for performance optimization, identification of up-grade potential and verification of sizing criteria
  • Papers and presentations in mining magazines and at international conferences
• Integral part of the Polysius HPGR story in mining from the earliest days in the 90’s.
• Various influential roles at Polysius, ThyssenKrupp and FLS across HPGR product management, process engineering and technology development.
• Joint Weir Minerals in January 2025 and is part of the HPGR Team in the Comminution Division.

Tuhin Banerjee is a Partner at Woodgrove Technologies, where he plays a pivotal role in driving innovation and operational excellence. His responsibilities include overseeing Woodgrove’s Advanced Control and Flotation Technology implementations globally.

Tuhin brings extensive expertise in the processing of base and precious metals as well as industrial minerals. He oversaw projects across more than 60 plants in 25 countries, delivering sustainable and long-lasting results to Woodgrove’s client base. Prior to Woodgrove, Tuhin’s leadership skills were prominently showcased during his tenure as Commissioning Lead at Barrick Gold's prestigious Pueblo Viejo Operation.

Tuhin is a graduate of the University of British Columbia, Canada, where he earned a Bachelor’s in Chemical Engineering.