Magnum Mining and Exploration Limited engages in the exploration and evaluation of mineral properties in Australia. The company holds 100% interest in the Buena Vista iron ore project located in Nevada, United States. It also holds interest in HIsmelt Green Pig Iron Project located in Nevada in the United States; and Appalachian Iron HIsmelt Green Pig Iron Project located in West Viriginia in the United States. The company was incorporated in 1986 and is based in Subiaco, Australia.