Profile: Rio Tinto Energy America develops coal. Our product line includes alumina, aluminium and bauxite, diamonds, gypsum, molybdenum, borates, copper, iron ore, uranium, gold & silver, sulphuric acid & titanium dioxide. We offer nickel, potash, lead and zinc. Our aluminium production process includes mining bauxite, refining bauxite into alumina and smelting alumina to produce aluminium.