Macarthur Minerals Limited, along with its associated companies, is dedicated to the exploration and evaluation of various mineral resource properties. The firm primarily seeks deposits of gold, copper, lithium, iron ore, nickel, and cobalt. Its holdings include three iron ore projects situated in Western Australia's Yilgarn region, two additional exploration areas targeting iron ore in the Pilbara region of Western Australia, and lithium brine interests in the Railroad Valley, Nevada, USA. Established in 2002, the company changed its name from Macarthur Diamonds Limited to Macarthur Minerals Limited in July 2005 and is headquartered in Milton, Australia.