Guodian Nanjing Automation Co., Ltd. (referred to as SAC hereinafter) is located in Nanjing, the People's Republic of China.

SAC is the first state-run high scientific and technical enterprise of the former State Power Cooperation of China publicly listed in Shanghai Stock Exchange from 1999.

The predecessor of SAC was Nanjing Electric Power Automation Equipment General Factory  founded in 1940.

Guodian Nanjing Automation Co., Ltd. (SAC)now is one of the most important manufacturers&suppliers of electric power automation& correlated products and services in China.

SAC enjoys a 70-year-long history in the field, and has  achieved many firsts. SAC is mainly engaged in the technical research, product development, production, sales and engineering service in the fields of power transmission and distribution protection, power grid automation, power plant automation, water resource and electrical automation, industrial and rail transit automation, electric energy saving and environment protection, water environment protection engineering, geotechnical engineering and main dam. The company has won the honors of Key High Scientific & Technical Enterprise of State Torch Plan, Top ten (China) Outstanding Innovative Enterprises, and Backbone Enterprise of State Power Automation Industrial Base.

The Board of Directors of SAC, consists of  experts and specialists on management, law and accounting, ensures the scientific decision making for the company; the executive organization with the spirits of creativity and dedication forms the operational style of efficiency, credit and appetency; scientific internal organizations make the whole company face market competition  with confidence; opening HR policy, effective HR system and harmonious career environment attract intelligent people to join SAC.