Guodian Nanjing Automation Co., Ltd. (hereinafter referred to as Guodian Nanzi, stock code 600268) is an early high-tech listed company with the national power system listed on the Shanghai Stock Exchange on November 18, 1999. It is now directly affiliated to China Huadian Group Co., Ltd. unit.

Guodian Nan was formerly known as Nanjing Electric Power Automation Equipment Factory and was established in 1940. After the founding of New China, the company has successively researched and produced China's first and second generation static relay protection products in the field of power automation, and has created many good achievements. It is known as the cradle and incubator of China's power automation industry. "GuoDiannan Since "," it has become a brand that is well-known nationwide and has a certain international reputation. As the main force of China Huadian Group's scientific and industrial industry, the company's industries cover five core sectors, including power grid automation, power plants and industrial automation, rail transit automation, information and safety technology, and power electronics. At the same time, production and manufacturing and system integration are supported, mainly in The fields of electricity, industry, new energy and other fields provide customers with supporting automation products, information products, integrated equipment and overall solutions. Actively carry out localization of key core technologies, product development, engineering demonstration and promotion and application in the fields of energy security, infrastructure security, information security, etc., and build Huadian in China earlier in the country to cover thermal power, gasoline, gas engine, hydropower, wind power, power grid, etc., including thermal power, gasoline, gasoline, etc., and power grids, etc., in China, has been building Huadian in the past. The "Rui" series of power independent controllable industrial control products series have achieved the deep integration of the innovation chain and the industrial chain. "The domestic control system of heavy-duty gas turbines based on PKS system" was released as the top ten achievements in digital transformation of central enterprises in 2021 at the "Digital Transformation Summit of Central Enterprises". Three scientific and technological achievements including "High-duty gas turbine domestically produced control system (maxCHD-GT100), "Hydropower station independent controllable computer monitoring system", "Substation independent controllable complete set of protection devices" were selected as the first energy field in 2021 by the National Energy Administration Comprehensive Department of the National Energy Administration in 2021 (Set) List of major technical equipment projects.

The company and its wholly-owned and holding companies have a total of approximately 1,679 valid patents. In the past three years (2020-2022), a total of 694 authorized patents have been obtained, 59 national standards have been participated in the revision and formulation of various national standards, 76 provincial and ministerial-level new products (new technologies) appraisal, and obtained various national, provincial and municipal levels. The above scientific and technological rewards are 79. In 2021, the "Development and Application of Independent Controlled Power Generation and Decentralized Control System" project led by Guodian Nanzi won the first prize of China Electric Power Science and Technology Progress, and participated in the completion of "Power System with High Proportion Distributed New Energy". Key technologies and engineering applications of demand-side load regulation" won the second prize of the 2020 National Science and Technology Progress Award. In 2022, the "Research and Application of Key Technologies of the Group of Integrated Integrated Systems of Hydropower Groups Based on Independent Controllable Software and Hardware" project won the first prize in the Science and Technology Progress of Hydropower Generation.