Global Resource Engineering (GRE) is a multifaceted engineering firm specializing in the mining industry. We are a dynamic and growing engineering firm whose hallmark of success, through all mining cycles, has been the ability to provide quality, cost-effective, engineering and creative solutions for our clients. We have a combination of senior-level professionals, experienced project managers, and technical staff to execute projects efficiently. We work in a partnership with our clients to achieve their company goals and operational milestones. Because of this philosophy, we won an award as Denver’s fastest-growing private business in 2012. Our services include: geology mapping and modeling; hydrology; resource and reserve estimation; open pit and underground mine design, mine planning, and optimization; financial analysis and constraint modeling; metallurgical design and process flow sheet development; process audits; heap leach and tailings design; mine waste facility design; geochemical risk mitigation; geotechnical; ARD auditing, mitigation, and closure planning; field investigations; site water management; groundwater modeling and overall project water balance; project due diligence; and land management.