Spartan Metals Corp. engages in developing critical minerals projects in the Western United States. The company explores in tungsten, rubidium, antimony, indium, bismuth, and arsenic deposits, as well as precious and base metals. Its flagship project is the Eagle Project located in eastern Nevada. The company was formerly known as Midasco Capital Corp. and changed its name to Spartan Metals Corp. in August 2025. Spartan Metals Corp. was incorporated in 1991 and is headquartered in Vancouver, Canada.