Stephen Twyerould, President & CEO, Excelsior Mining Corp. (MIN), joined Orlee Wertheim, Head Business Development, Global Mining, Toronto Stock Exchange and TSX Venture Exchange, to open the market. Excelsior Mining is a mineral exploration and development company that is advancing the Gunnison Copper Project in Cochise County, Arizona. Excelsior Mining Corp. graduated from TSX Venture Exchange, and commenced trading on Toronto Stock Exchange on February 2, 2017. (CNW Group/TMX Group Limited)
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