Brenna J.Y. Scholey, P.Eng., is a Principal Metallurgist with over 30 years of experience in the mining industry.  Her experience includes base metals milling, smelting, and refining, precious metals processing, project evaluations, research and development, flowsheet design and optimization, metals accounting, and production planning.  Ms. Scholey has expertise in metals separation technologies and recycling.

Andrew P. Hampton, P.Eng., Principal Metallurgist, is a metallurgical engineer with 30 years’ experience in engineering, design, operation and management of mineral processing and hydrometallurgical systems and facilities.  His process design experience includes comminution, classification, atmospheric and pressure leaching, thickening and filtration, precipitation, cementation, gas-liquid stripping and absorption, solvent extraction and electrowinning, ion exchange and water treatment. His  experience is related to the processing of base and precious metals and phosphate and potash and includes due diligence, feasibility studies, engineering, construction management, commissioning, and plant start up.  Prior to joining RPA Mr. Hampton spent nine years with SNC-Lavalin as a metallurgical engineer and Manager, Metallurgy  and served as General Manager of Mineral Processing with Washington Group.   He was also the General Manager of Outokumpu Technology, Inc.’s Centennial, Colorado office which was responsible for the sale and delivery of mineral processing technology and equipment, including grinding mills, flotation, thickening and automation equipment to the North American market area, including Mexico, and the sale and delivery of grinding equipment to clients in North and South America.

Kathleen A. Altman, Ph.D., P.E., is an Associate Principal Metallurgist with over 30 years of experience in the mining industry including operations, consulting, and academia. She began her career in plant operations and commissioning. Her consulting experience includes the completion of scoping, prefeasibility, and feasibility studies, and NI 43-101 Technical Reports. Dr. Altman has also contributed to research and process development as well as detailed engineering designs for processing plants, water treatment facilities, and infrastructure. Her work has supported the evaluation and/or development of numerous, diverse, national and international mining projects.