Mandalay Resources Corporation, a natural resource company, engages in the acquisition, exploration, extraction, processing, and reclamation of mineral properties. It explores for gold, silver, and antimony deposits. The company primarily holds 100% interests in the Costerfield gold-antimony mine located in Central Victoria, Australia; and the Björkdal gold mine located in Västerbotten County in northern Sweden. The company was incorporated in 1997 and is headquartered in Toronto, Canada.