Héroux-Devtek Inc. (TSX: HRX) is a Canadian company specializing in the design, development, manufacture and repair and overhaul of landing gear systems and components for the Aerospace market. The Corporation is the third largest landing gear company worldwide, supplying both the commercial and military sectors of the Aerospace market with new landing gear systems and components, as well as aftermarket products and services. The Corporation also manufactures electronic enclosures, heat exchangers and cabinets for suppliers of airborne radar, electro-optic systems and aircraft controls through its Magtron operations. Approximately 70% of the Corporation's sales are outside Canada, mainly in the United States. The Corporation's head office is located in Longueuil, Québec with facilities in the Greater Montreal area (Longueuil, Laval and St-Hubert); Kitchener and Toronto, Ontario; as well as Springfield and Cleveland, Ohio.