Group 1 - Changan Automobile Group has officially become China's 100th central enterprise, with its automotive business and military core assets completely separated [1] - The subsidiary of the Equipment Development Department, Dong'an Power, has been upgraded to a subsidiary of Changan, allowing it to openly undertake orders from the Changan system [2] Group 2 - Dong'an Power, a traditional engine manufacturer, has successfully transformed and now controls a significant portion of China's new energy industry, particularly in range-extended vehicles [6][30] - Established over 70 years ago, Dong'an Power has a rich history, including developing China's first turbojet engine for the J-5 fighter jet in the 1950s [8] Group 3 - Dong'an Power's significant growth began in 1998 when it introduced the Mitsubishi engine series, leading to the production of the 4G1 series engine, which became a key component for many domestic vehicles [10][12] - The company faced challenges in 2010 when mainstream joint venture manufacturers began localizing their own engines, leading to a decline in Dong'an's market position [14][16] Group 4 - In 2017, Dong'an Power developed China's first independently designed 6-speed automatic transmission, marking a significant technological advancement [18] - By 2022, Dong'an Power's sales of range-extended engines reached 613,400 units, with revenue of 5.767 billion yuan and a net profit of 108 million yuan [30] Group 5 - Dong'an Power's 1.5T range extender has been adopted by various new energy vehicle manufacturers, providing a cost-effective solution compared to self-developed options [32] - The company has established numerous partnerships and projects, including collaborations with companies like AVL List GmbH and BorgWarner, focusing on new energy applications [38] Group 6 - The story of Dong'an Power reflects the broader transformation of the new energy vehicle industry in Heilongjiang, with significant developments in local manufacturing and technology [40][54] - Heilongjiang has become a unique hub for new energy vehicles, integrating its cold climate resources into the automotive testing and development process [49][53]