Casino Mining Corporation is a wholly owned subsidiary of Western Copper and Gold Corporation, with full ownership of its flagship property, the Casino copper-gold-molybdenum-silver deposit in the Dawson Range in west central Yukon, Canada.

Exploration first began in the Casino Project area in the early 20^th century, with the first mineral claim dating back to 1917. Various exploration companies and individuals have conducted work in the region. In 1967 copper porphyry mineral potential was identified and in 1968 the Brameda Group acquired Casino Silver Mines. Exploration continued through 1991 directed towards characterizing the porphyry target.

Pacific Sentinel Gold (PSG) continued exploration activities between 1992 and 1995 and produced an Internal Scoping Study. First Trimark Resources and CRS Copper Resources (which combined to form Lumina) brought the resource estimate to compliance during 2003 and 2004 with an NI 43-101 submission; a national set of standards of disclosure for mineral projects within Canada.

Western Copper acquired the Casino Project site in 2006 from Lumina and then established Casino Mining Corporation, which now owns the property. Casino has been conducting extensive mineral exploration and evaluations of the property since 2006 to define a mineable ore-body.

In January 2013, the company completed a bankable feasibility study report. In January 2014, the company submitted its Casino Project Proposal to the Yukon Environmental and Socio-Economic Assessment Board (YESAB) for an environmental assessment. In 2016, the Casino Project was referred by YESAB to a Panel Review.

In 2019, Casino carried out a program of infill drilling designed to convert mineralization in the inferred resource category located along the margin of the deposit to the indicated category. In mid-2019, Western Copper acquired the adjacent property to the west referred to as the Canadian Creek property from Cariboo Rose Resource Ltd., which led to the issuance of a new Mineral Resource Statement in late 2020.

In May 2021, Rio Tinto Canada Inc. (Rio Tinto) made a strategic investment of C$25.6 million to advance the Project. In November 2023, Casino announced a further investment by Rio Tinto resulting in Rio Tinto owning approximately 9.7 per cent of Western Copper and Gold’s outstanding shares. Western Copper and Gold remains the sole owner of the proposed Casino Project.