Profile: Alcoa Closure Systems is a producer and manager of primary aluminum, fabricated aluminum and alumina facilities. We serve the aerospace, automotive, packaging, building and construction, commercial transportation and industrial markets. We mine bauxite, lignite, coal and minerals. We manufacture a wide variety of products from plastics for the packaging, construction and transportation markets. We convert the bauxite to aluminum oxide and then to aluminum through processes that use fuels, caustic soda, lime, petroleum coke, coal tar pitch, aluminum fluoride, chemicals and water.