Mitsubishi Heavy Industries, or MHI, is a Japanese engineering group whose aviation activities include military aircraft, commercial airliner structures and aircraft support. It developed from the Nagasaki shipbuilding business begun in 1884 and adopted the heavy-industries name in 1934, reflecting its expansion into machinery, aircraft and railway equipment.[1]HistoryMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details
Corporate development
After the Second World War, the dismantling of Japan's large industrial combines divided MHI into three companies in 1950. West Japan, Central Japan and East Japan Heavy Industries operated separately before consolidation in 1964. Aviation therefore developed within a wider industrial organisation whose continuity spans both the pre-war manufacturer and the later reunited group. Its non-aerospace operations have included ships, power systems and industrial machinery.[1]HistoryMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details
Military aircraft
MHI served as prime contractor for licensed manufacture of the F-15J air-superiority fighter, first delivered to Japan's air force in 1981. It also led the Japanese side of the F-2 programme, developed with American participation from the F-16. The F-2 introduced a larger composite wing and Japanese systems; its prototype first flew in 1995 and the first production aircraft was delivered in 2000. These programmes combined domestic engineering and manufacturing with international aircraft technology and industrial cooperation.[2]F-15J Jet FighterMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details[3]F-2 FighterMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details
Commercial programmes
Commercial work has included composite wings for the Boeing 787 and structures for Bombardier business aircraft. MHI also pursued a complete regional airliner through Mitsubishi Aircraft Corporation, initially known as the Mitsubishi Regional Jet and later SpaceJet. In February 2023, it formally discontinued SpaceJet development. Separately, MHI completed its acquisition of Bombardier's CRJ programme in June 2020. The transaction brought type certificates and maintenance, technical support, refurbishment, marketing and sales activities into MHI RJ Aviation Group. Thus, its regional-aircraft business retained a substantial support role for an established fleet despite the termination of its new-airliner development programme.[4]Commercial Aviation SystemsMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details[5]Notice of Discontinuation of SpaceJet Development ActivitiesMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details[6]CRJ acquisition closing agreementMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details[7]MHI RJ Aviation Group launches as CRJ acquisition closesMitsubishi Heavy Industries · mhi.com · Accessed 2026-09-13Open source details