Guardian Metal Resources PLC engages in the exploration and exploitation of mineral resources in the United States. It primarily explores for tungsten, copper, gold, silver, lithium, gallium, and zinc deposits. The company's flagship project is the 100% owned Pilot Mountain Project that covers an area of 5,908-acres located in Nevada. It also holds an option to acquire up to 100% interest in the Tempiute Project, co-flagship property, located in Nevada. The company was formerly known as Golden Metal Resources PLC and changed its name to Guardian Metal Resources PLC in June 2024. Guardian Metal Resources PLC was incorporated in 2021 and is based in London, the United Kingdom.