Comac
Chinese state-owned aerospace manufacturer focused on civil passenger aircraft.
Last updated October 9, 2026
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Overview
Commercial Aircraft Corporation of China, Ltd., generally branded as Comac or COMAC, is a Chinese state-owned aerospace manufacturer headquartered in Pudong, Shanghai. Established on 11 May 2008, the company was created as a central organization for China’s large civil-aircraft program and is responsible for the design, development, production, marketing, and support of commercial passenger aircraft. Its establishment brought together several major Chinese industrial and state-owned participants, including Aviation Industry Corporation of China, Aluminum Corporation of China, Baosteel Group, Sinochem Group, Shanghai Guosheng, and the State-owned Assets Supervision and Administration Commission. Comac’s formation reflected China’s effort to build an indigenous civil-aircraft industry capable of producing complete passenger aircraft rather than supplying only components or subsystems. The company’s principal aircraft programs have targeted market segments historically dominated by Airbus and Boeing. Its first marketed aircraft was the ARJ21, a regional jet originally developed within the Chinese aviation industry before becoming part of Comac’s commercial product portfolio. The aircraft was intended for regional routes and smaller passenger volumes, giving Comac an entry point into airline operations and aircraft support. The company’s most strategically important program is the C919, a single-aisle jet designed for the high-volume market served by aircraft such as the Airbus A320 family and Boeing 737 family. The C919 completed its maiden flight in 2017 and entered commercial service with China Eastern Airlines in March 2023. With seating capacity of up to approximately 168 passengers in the referenced configuration, the aircraft represents China’s first major attempt to field a domestically produced narrow-body airliner for regular commercial service. Its program has also required Comac to manage certification, supplier integration, production, airline support, and international trade restrictions at a scale beyond earlier Chinese civil-aircraft projects. Comac has pursued international cooperation as part of its industrial development. It signed a long-term strategic cooperation framework with Bombardier in 2011, discussed possible cooperation involving Bombardier’s passenger-jet business in 2017, and engaged with Ryanair on C919 development in 2011. It has also operated in a competitive and cooperative environment involving Boeing, including the establishment of a Boeing completion and finishing facility in China, although that facility was not a Comac product program. In the wide-body segment, Comac and Russia’s United Aircraft Corporation created the China-Russia Commercial Aircraft International Corporation in 2017 to develop a large passenger aircraft. The cooperation was subsequently curtailed, and Comac later stated that it would develop the aircraft independently under the C929 designation. In November 2024, Comac rebranded the ARJ21 as the C909, aligning the aircraft with its broader naming convention in which commercial-aircraft models use a 9X9 format. The rebranding positioned the regional jet more clearly within Comac’s expanding family of civil-aircraft products. Comac’s current strategic importance therefore extends beyond individual aircraft sales: it is a vehicle for developing Chinese capabilities in aircraft engineering, final assembly, certification, airline support, and the wider commercial aviation supply chain. At the same time, the company faces substantial challenges, including competition from established Western manufacturers, dependence on international suppliers for some systems and components, production ramp-up requirements, certification in overseas jurisdictions, and geopolitical restrictions. Comac remains active and is principally associated with the ARJ21/C909 regional jet, the C919 single-aisle airliner, and the planned C929 wide-body program.
History
Comac was established in Shanghai on 11 May 2008 as the principal corporate platform for China’s national large civil-aircraft initiative. Its founding shareholders and participating institutions included Aviation Industry Corporation of China, Aluminum Corporation of China, Baosteel Group, Sinochem Group, Shanghai Guosheng, and the State-owned Assets Supervision and Administration Commission. The company was designed to consolidate capabilities that had previously been distributed across China’s aviation, industrial, and state-owned enterprise systems. The company’s initial commercial product was the ARJ21 regional jet. The aircraft had been developed within the Chinese aviation sector, including work associated with Aviation Industry Corporation of China I, before becoming Comac’s first aircraft to be marketed for airline use. The regional-jet program gave Comac experience in civil-aircraft development, final production, customer relationships, and support services. In November 2024, Comac renamed the aircraft C909, aligning it with the company’s later commercial-aircraft naming convention. Comac’s central strategic program became the C919, a narrow-body passenger aircraft aimed at the large market for single-aisle airliners. The aircraft completed its maiden flight in 2017 and entered commercial service in March 2023. The program was significant because it moved Comac beyond regional aircraft and into a category dominated by Airbus and Boeing. It also required the company to establish capabilities in certification, systems integration, manufacturing, airline maintenance support, and production scaling. International collaboration has been a recurring feature of Comac’s development. In March 2011, Comac and Bombardier signed a framework agreement for long-term strategic cooperation involving commercial aircraft. In June of the same year, Comac and Ryanair agreed to cooperate on the development of the C919, described at the time as a 200-seat narrow-body aircraft intended to compete with the main Airbus and Boeing single-aisle families. In 2017, Bombardier and Comac also discussed potential investment involving Bombardier’s passenger-jet business. These relationships reflected Comac’s effort to obtain market input, technical experience, and international commercial connections while building a Chinese aircraft-manufacturing base. Comac also participated in the development of a planned Chinese-Russian wide-body aircraft. China-Russia Commercial Aircraft International Corporation was established in Shanghai on 22 May 2017 as a joint venture between Comac and Russia’s United Aircraft Corporation. The original plan called for research and development activity in Moscow and assembly in Shanghai. The partnership was later reduced or discontinued, and Comac announced by November 2023 that it would pursue the aircraft independently. The aircraft, previously associated with the CR929 name, was subsequently referred to as the C929. The company’s expansion has taken place amid increasing geopolitical friction. In January 2021, the United States government designated Comac as a company it considered owned or controlled by the People’s Liberation Army, restricting investment by American persons and companies. Comac was added to a United States Department of Defense list in January 2025, and United States export controls were tightened in May 2025 for certain parts previously supplied to the company. These actions have highlighted Comac’s exposure to international technology controls and the importance of supply-chain resilience. Comac remains an active state-owned Chinese aerospace manufacturer. Its principal established commercial programs are the C909 regional jet and C919 narrow-body airliner, while the C929 represents its effort to develop a larger aircraft independently. The company’s broader role is to support China’s long-term ambition to create a complete civil-aviation industry, although its future growth depends on production execution, certification, supplier access, airline acceptance, and the ability to operate in international markets.
- 2025
Comac faces expanded United States trade restrictions
[1]Comac was added to a United States Department of Defense list in January and faced tighter export controls on certain parts in May.
- 2024
ARJ21 is rebranded as C909
[1]Comac renamed the ARJ21 regional jet C909 in November 2024.
- 2023
C919 enters commercial service
[1]The C919 entered commercial service in March 2023.
- 2023
Comac proceeds independently with the C929
[1]After the China-Russia wide-body partnership was curtailed, Comac stated that it would develop the aircraft independently; the program became associated with the C929 designation.
- 2021
United States investment restrictions are imposed
[1]The United States identified Comac as allegedly owned or controlled by the People’s Liberation Army, restricting investment by American companies and individuals.
- 2017
C919 completes its maiden flight
[1]Comac’s C919 narrow-body airliner made its first flight.
- 2017
China-Russia wide-body joint venture is established
[1]Comac and Russia’s United Aircraft Corporation established China-Russia Commercial Aircraft International Corporation to develop a wide-body commercial aircraft.
- 2015
Boeing announces a Chinese completion facility
[1]Boeing announced plans for a 737 completion and finishing facility in Zhoushan, China; the facility was separate from Comac’s aircraft programs.
- 2011
Strategic cooperation framework with Bombardier
[1]Comac and Bombardier signed a framework agreement for long-term cooperation on commercial aircraft.
- 2011
Development cooperation with Ryanair
[1]Comac and Ryanair agreed to cooperate on development of the C919 program.
Products and positioning
A Chinese state-backed civil-aircraft manufacturer positioned as a domestic and eventual international alternative in commercial passenger aviation, with a strategic emphasis on building an indigenous large-aircraft industry.
Regional jet
C909
The C909 is Comac’s regional passenger jet, formerly marketed as the ARJ21. It was the company’s first aircraft to be marketed commercially and provided an entry point into airline operations, customer support, and civil-aircraft production. In November 2024, Comac changed the aircraft’s designation to C909 to align it with the company’s 9X9 commercial-aircraft naming pattern.
Single-aisle commercial airliner · 2023
C919
The C919 is Comac’s narrow-body passenger aircraft for the high-volume single-aisle market. It is designed to carry up to approximately 168 passengers in the configuration cited in the reference material and is intended to compete with the Airbus A320 family and Boeing 737 family. The aircraft made its maiden flight in 2017 and entered commercial service in March 2023, making it Comac’s most strategically significant commercial product.
Wide-body commercial-aircraft program
C929
The C929 is Comac’s planned wide-body passenger-aircraft program. It originated in the China-Russia Commercial Aircraft International Corporation partnership between Comac and United Aircraft Corporation, which was established in 2017. After the partnership was curtailed, Comac stated that it would continue development independently. The program was previously associated with the CR929 designation.
Controversies
2025
Expanded United States restrictions
Comac was placed on a United States Department of Defense list in January 2025, followed by tighter United States export controls affecting certain parts previously shipped to the company in May 2025.
2021
United States military-affiliation designation
The United States government designated Comac as allegedly owned or controlled by the People’s Liberation Army, resulting in restrictions on investment by American companies and individuals.
Brand decisions
2024
Rename the ARJ21 as C909Generation changeBackground
Comac had adopted a 9X9 naming convention for commercial-aircraft models beginning with the 919 designation.
Action taken
In November 2024, the company rebranded the ARJ21 regional jet as the C909.
Aftermath
The regional jet was placed more clearly within Comac’s unified commercial-aircraft product family.
2023
Enter the C919 into commercial serviceProduct launchBackground
After the C919’s 2017 maiden flight and subsequent development and certification work, Comac moved its principal narrow-body program into airline operations.
Action taken
The C919 entered commercial service in March 2023.
Aftermath
The aircraft became Comac’s flagship commercial product and the company’s principal entry into the single-aisle airliner market.
2017
Create a China-Russia wide-body joint ventureM&ABackground
Comac and United Aircraft Corporation sought to cooperate on a large wide-body commercial aircraft.
Action taken
They established China-Russia Commercial Aircraft International Corporation in Shanghai, with planned research and development in Moscow and assembly in Shanghai.
Aftermath
The partnership was later curtailed, and Comac subsequently announced that it would develop the aircraft independently under the C929 designation.
Recent events
- 2024
Comac rebrands the ARJ21 as the C909[1]
Product generation · Product launch
Comac changed the commercial designation of the ARJ21 regional jet to C909 in November 2024, bringing the aircraft into the company’s 9X9 naming system.
- 2023
C919 enters commercial service[1]
Product launch · Product generation
The C919 began commercial operations in March 2023 after completing its maiden flight in 2017, marking the transition of Comac’s principal narrow-body program into airline service.
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