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 ...

Battery metal development company Giyani Metals Corporation. K.Hill will be one of the biggest high-purity manganese sulphate monohydrate (HPMSM) projects in the world. HPMSM is a refined precursor ...

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