MQes has metallurgical expertise in hydrometallurgy, pyrometallurgy and bio-leaching. This includes:

• Crushing and grinding systems

• Flotation (Copper, Lead, Zinc, Nickel, Platinum Group Metals, Phosphate)

• Smelting (Copper, Lead, Nickel, Zinc, Platinum Group Metals, Aluminum)

• Gold processing (heap leach, CIP, CIL, Merrill Crowe)

• Pressure Leaching base metal and precious metal concentrates

• Bioleaching base metal and precious metal concentrates (Chalcopyrite leaching)

• Solvent Extraction/Electrowinning

MQes provides metallurgical expertise for operating mines as well as for organizations developing new projects.MQes is keenly aware of the need to support exploration programs with preliminary metallurgical testing, and the importance of representative metallurgical sampling as new projects progress along the development path. MQes has specific expertise in designing and supervising metallurgical test programs and then evaluating the test results to develop the optimum processing route. MQes' metallurgical expertise also includes:

• Developing process flowsheets

• Performing detailed material and energy balances

• Developing plant design criteria

• Sizing equipment and preparing detailed equipment lists

• Performing optimization reviews on existing operations

• Trouble shooting processing problems

• Commissioning new operations