Arizona Sonoran announces that following a request for proposal, they have appointed M3 Engineering, Tucson, to lead the Cactus Project Pre-Feasibility Study and to act as metallurgical program lead. The consultants will include AGP Mining (mining), Clear Creek (hydrology), ALS Geotechnical (geology), and Partners in Performance (real-time modeling and optimization), all of whom have contributed to ASCU’s prior studies.