In a special ceremony at Le Bourget on the opening day of the Paris Air Show, the Commercial Aircraft Corporation of China (COMAC), its subsidiary, Shanghai Aircraft Manufacture Company, and CFM International signed a master contract for the C919/LEAP Integrated Propulsion System (IPS). LEAP is a product of CFM, a 50/50 joint company between Snecma (Safran group) and GE. The definitive agreement stipulates that CFM International (CFM) will be the sole overseas supplier for an integrated propulsion system (engine, nacelle, thrust reverser) and that the LEAP-X1C engine will be the sole Western powerplant for the new 150-passenger short-to-medium range airplane on schedule to enter service in 2016.