OTC Markets Group Inc. , operator of regulated markets for trading 12,000 U.S. and international securities, today announced
American Tungsten Corp. , a Canadian-based exploration and development company, has qualified to trade on the OTCQX® Best Market. American Tungsten Corp. upgraded to OTCQX from the OTCQB® Venture Market. American Tungsten Corp. begins trading today on OTCQX under the symbol "TUNGF." U.S. investors
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