Going public on November 18, 1999,Guodian Nanjing Automation Co., Ltd.(SAC stock code: 600268) is the first high-tech enterprise of the state power system listed in Shanghai Stock Exchange and enjoys the reputation of "No.1 power high-tech share in China". It is now affiliated to China Huadian Corporation. SAC is originally called Nanjing Electric Power Automation Equipment General Factory which was founded in 1940. After the foundation of new China, the company developed the first and second generation of static protective relay products, and has made many top creative achievements in China. The company has won the honors of One of Top 50 Industrial Enterprises in Nanjing, Key High Scientific & Technical Enterprise of State Torch Plan, One of the Top 10 (Chinese) Outstanding & Innovative Enterprises and Backbone Enterprise of State Power Automation Industrial Base. Our products are honored as Chinese Famous Brand. As one of the five listed companies of China Huadian Corporation and the main part of the engineering technology business, SAC has been dedicating to its three pillar businesses: power automation,new energy, energy saving & emission reduction and intelligent primary equipment.