Electric Metals Developing North America's Highest-Grade Manganese Deposit. ( Newswire) Electric Metals (USA) Limited (TSXV:EML, OTCQB:EMUS) has the highest-grade manganese deposit in North America a ...
K.Hill will be one of the biggest high-purity manganese sulphate monohydrate projects in the world. HPMSM is a refined precursor material used in the production of cathode powders for lithium-ion ...