Nanjing Quanxin Transmission Technology Co., Ltd. was established on 200 1 and is headquartered in Nanjing. Is a private scientific and technological enterprise specializing in the development and production of photoelectric transmission, network and control products, and providing technical solutions for transmission systems. The company's products cover aviation, aerospace, shipping, electronics, rail transit, civil aviation, 5G communication, construction machinery and equipment and other fields. Provide comprehensive supporting and technical support programs for major national model projects to meet the multi-level and multi-directional differentiated needs of customers. Since its establishment, the company has taken breaking foreign monopoly as its own responsibility and taking domestic substitution as its goal. After 20 years of rapid development, the company has accumulated strong technical innovation capability, built a good independent research and development platform, advanced development entities and industrialization bases, and a number of products have replaced imports for the first time in China, and have been successfully applied to a number of national key model projects. The company was successfully listed on the Growth Enterprise Market of Shenzhen Stock Exchange on 20 15. The company is called Quanxin for short, and the stock code is 300447.