MetaLeach owns the intellectual property to two hydrometallurgical technologies, namely AmmLeach® and HyperLeach®, which are environmentally friendly, cost effective processes for the extraction of base metals from amenable ore deposits and concentrates allowing the production of high value products at the mine site MetaLeach Limited is a wholly owned subsidiary of AIM quoted Alexander Mining plc, formed in 2007 to enable the commercialisation of its proprietary hydrometallurgical mineral processing technologies