Guardian Metal Resources plc focuses on the exploration and development of mineral assets in the United States, primarily in Nevada. The company aims to support the domestic supply of tungsten, a critical mineral, while also exploring for gold, copper, lithium, silver, and zinc. Its business model involves holding mineral claims and advancing projects at various stages of exploration and development, with a commitment to responsible mining practices and environmental stewardship. Guardian operates through its subsidiaries, which manage several exploration projects, including Pilot Mountain, Garfield, Stonewall, and Kibby Basin.