In March 2009, Bombardier confirmed major suppliers: Alenia Aeronautica for the composite horizontal and vertical stabilisers, Fokker Elmo for the wiring and interconnection systems and Goodrich Corporation Actuation Systems: design and production of the flap and slat actuation systems. By June 2009, 96% of billable materials had been allocated, with the company settling on various companies for remaining components and systems: Shenyang Aircraft Corporation for the centre fuselage; Zodiac Aerospace for the interiors, and United Technologies Corporation for the engine nacelles.