1. State Grid Electric Power Research Institute, China C-EPRI Electric Power Engineering Co., Ltd.,NARI Group Corporation,Beiing,China,102200
2. State Grid Fujian Electric Power Co., Ltd. Sanming electric power supply company,Sanming,Fujian,China,365000
3. Zhuzhou CRRC Times Semiconductor Co., Ltd.,Zhuzhou,Hunan Province,China,412001