Alcoa Inc. (Alcoa) is engaged in the production and management of primary aluminum, fabricated aluminum, and alumina combined, through its participation in technology, mining, refining, smelting, fabricating, and recycling. Alcoa�s products are used worldwide in aircraft, automobiles, commercial transportation, packaging, building and construction, oil and gas, defense, consumer electronics, and industrial applications. Alcoa is a global company operating in 31 countries. Alcoa�s operations consist of four worldwide reportable segments: Alumina, Primary Metals, Flat-Rolled Products, and Engineered Products and Solutions. On March 9, 2011, Alcoa completed an acquisition of the aerospace fastener business of TransDigm Group Inc.