Adex Mining, Inc. engages in the development of polymetalic mine focusing on tin, indium, zinc, molybendum and tungsten. It operates on Mount Pleasant Mine Property which hosts two deposits: the Fire Tower Zone and the North Zone. The Fire Tower Zone is situated in the south eastern part of the Mount Pleasant property and hosts resources of molybdenum and tungsten. The North Zone, situated in the north western part of the property contains indium resource. The company was founded by William B. Burton on December 31, 1992 and is headquartered in Toronto, Canada.