New Frontier Minerals Limited engages in the exploration and examination of mineral properties in Australia and Zambia. The company primarily explores for copper, cobalt, silver, gold, lead, niobium, uranium, and zinc deposits, as well as rare earth elements. The company was formerly known as Castillo Copper Limited and changed its name to New Frontier Minerals Limited in December 2024. New Frontier Minerals Limited was incorporated in 2009 and is based in West Perth, Australia.