The Coltan Exchange Network is the fastest growing one of a kind innovative digital global network for buyers, sellers, processors, smelters, traders, service providers and Multinational Corporations for minor metals such as Tantalum / Tantalite, Cobalt and Lithium which we specialize in.
We also cover base metals and rare-earths our platform has free and verified profile options become verified and get access to millions of clients buyers, sellers, processors, smelters, traders, service providers and Multinational Corporations.
