The Hydrometallurgy Division (HMD) is a dynamic group within Mintek consisting of 43 professionals and technical staff. The division develops and tests hydrometallurgical flow sheets for the recovery and refining of metals from ores and concentrates. The principal areas of expertise are leaching, precipitation, cementation, ion-exchange, solvent extraction, electro-winning, and process simulations. Strong focal areas of the division’s work are Uranium, Platinum Group Metals, Base Metals, Rare Earths, and Gold Processes. The division uses fundamental research as a foundation to develop novel technologies and assist clients in developing process options. The commercial work is aimed mainly at providing flow sheet options for clients that wish to develop and optimise processes for exploiting new ore bodies.