Alcoa Corporation (Alcoa) is engaged in the production of bauxite, alumina and aluminum of various cast and rolled products. The Company’s operations consist of three reportable business segments: Bauxite, Alumina, and Aluminum. The Bauxite and Alumina segments primarily consist of a series of affiliated operating entities held in Alcoa World Alumina and Chemicals (AWAC), which is a joint venture between Alcoa Corporation and Alumina Limited. The Aluminum segment consists of the Company’s aluminum smelting, casting, and rolling businesses, along with the energy production business. Its Bauxite segment consists of the Company’s global bauxite mining operations. The Company’s Alumina segment consists of the Company’s worldwide refining system, which processes bauxite into alumina. The Aluminum segment consists of its worldwide smelting and casthouse system, a rolling mill in the United States, and a portfolio of energy assets in Brazil, Canada, and the United States.