SHANGHAI — The first plane produced by a Chinese government initiative to compete in the market for large passenger jetliners has been unveiled in Shanghai.

The Commercial Aircraft Corp. of China showed off its twin-engine C919 in a ceremony Monday attended by some 4,000 government officials and other guests at a hangar near the Pudong International Airport.

China’s aviation market is growing fast but relies on Boeing and Airbus aircraft. The ruling Communist Party wants to claw back some of the commercial benefits that flow to foreign suppliers.

The state-owned manufacturer says it has received orders from 21 customers for a total of 517 aircraft, mostly from Chinese carriers but also from GE Capital Aviation Services.