1. Ultra High Voltage Division, State Grid Corporation of China,Beijing,China
2. State Grid Corporation of China UHV Construction Branch,Southwest Construction Department,Beijing,China
3. State Grid Corporation of China's Ultra High Voltage Construction Branch,North China Construction Department,Beijing,China
4. State Grid Fujian Electric Power Company,Construction Department,Fuzhou,China
5. Engineering Branch, Beijing, North-Star Technology Development Co., Ltd.,Beijing,China
6. North-Star Technology Development Co., Ltd.,Market Development Department, Beijing,Beijing,China