Allegheny Technologies Inc. is a global manufacturer of technically advanced specialty materials and complex components. Allegheny Technologies largest market is aerospace & defense, particularly jet engines. The company operates under 2 revised business segments, HPMC and AA&S. The AA&S segment is focused on delivering high-value flat products mainly to the energy, aerospace, and defense end-markets. It combines the Specialty Alloys & Components business with the company's former Flat-Rolled Products(FRP) business segment that included the FRP business, the STAL joint venture, and the Uniti and A&T Stainless joint ventures. The HPMC segment consists of specialty materials and forged products businesses, and ATI Europe distribution operations. The segment is primarily focused on maximizing aero-engine materials and components growth. Majority of its revenues are derived from the aerospace and defense markets.