The three leading stocks of automotive chips are as follows: 1. Ruineng Technology. Its stock code is 63933. ? Ruineng Technology was established in 27 and listed on the main board of Shanghai Stock Exchange in 217 (stock code: 63933). Is a high-tech enterprise specializing in research and development, production, sales and service of industrial automation products. Headquartered in Fuzhou, the company has nearly 2 subsidiaries and R&D in Shanghai, Wuhan, Fuzhou and Changzhou. Center d It is one of the key high-tech enterprises of the National Torch Plan, Fujian Enterprise Technology Center and China Textile Machinery Industry computerized flat knitting machine intelligent control system product R&; D Center "and" Fujian Textile Equipment Intelligent Control Enterprise Engineering Technology Research Center ". The company insists on technological innovation to drive the development of technology and products. Through years of precipitation, a number of core technologies and patented technologies with domestic leading level have been formed. 2. Huasheng Tiancheng. Its stock code is 641. Sheng Tiancheng (full name: Beijing Huasheng Tiancheng Technology Co., Ltd.) is an integrated IT service provider, which was established on November 3, 1998 and headquartered in Beijing. IT is the first local IT service provider in China whose service network covers the whole of Greater China and part of Southeast Asia. The main business scope covers cloud computing, mobile Internet, Internet of Things, information security and other fields, and provides IT services such as IT productization services, application software development, system integration and value-added distribution. 3. Chengmai Technology. Its stock code is 3598. Mai Technology (Nanjing) Co., Ltd. focuses on the field of mobile communication, providing development and technical support services of underlying software and application software based on mainstream mobile operating systems such as Android, Android intelligent terminal platform solutions, intelligent hardware and mobile Internet software development and operation and maintenance services. Headquartered in Nanjing, the company has branches in Beijing, Shanghai, Shenzhen, Wuhan, Xi and Jinan. Mai Technology has established close cooperative relations with many international leading companies in the communication industry, such as major international chip manufacturers such as Intel, Qualcomm and MTK, and many international mobile phone terminal manufacturers such as Huawei. Offshore R&D by establishing joint laboratories and multi-site connections; D center, which provides R&D for its upstream and downstream partners; D and support services.