EC120 Colibri programme. On 20 October 1992, a contract for the joint development contract of the new helicopter was signed by the three principle partners of the project, the newly-formed Eurocopter, China National Aero-Technology Import & Export Corporation (CATIC) and ST Engineering Aerospace. Under the joint development agreement, Eurocopter received a 61% controlling interest and technical leader in the programme, CATIC received a 24% work share and STAero received a 15% work share; CATIC designed and produced the cabin structure and fuel system, ST Engineering Aerospace produced the tail boom, access doors, and composite materials, while Eurocopter produced the dynamic assemblies, installed the avionics, electrical and hydraulic systems, and conducted the final assembly activity. From the programme's onset, the EC120 had been intended to be co-produced, with partners sought in China, Singapore, and Australia. By October 1998, more than 100 orders had been received for the type, leading to the production rate being increased from four helicopters per month to six. In 2002, Eurocopter was in the process of establishing a second assembly line for the EC120 at Australian Aerospace's facility in Brisbane, Australia. On 11 June 2004, a final production agreement was signed; under the agreement, CATIA and HAIG received exclusive market rights in China, and Eurocopter agreed to stop selling French-built EC120s in mainland China. In June 2014, the People's Liberation Army of China became the launch customer for the Harbin-produced HC120, reportedly placing an order for eight of the type with options for fifty more. Subsidiaries/Divisions ST Engineering Aerospace Engineering Pte Ltd - provides depot level maintenance, aircraft upgrading, refurbishment, major structural repair and life extension programmes for a wide range of military and general aviation aircraft including helicopters. they also provide extensive base and line maintenance services for commercial aircraft such as the B737 and A320. ST Engineering Aerospace Services Co Pte Ltd - operates from Singapore's Changi and Paya Lebar airports, specialises in airframe heavy maintenance and modification for wide-body aircraft, including B747 Section 41 modification, Passenger-to-Freighter (PTF) conversion and fleet standardisation VT Aerospace Mobile - located at the Brookley Aeroplex in Mobile, Alabama, United States, they specialise in aircraft heavy maintenance and repair of narrow-body and wide-body aircraft. They are also equipped for aircraft interior modification work, subsidiary business of VT Systems ST Engineering Aerospace Engines Pte Ltd- provides repair and overhaul services for military and civil aero-engines and accessories. ST Engineering Aerospace Technologies