Domestic:

More than 30 electricity science research institutes above provincial level:
China National Electric Power Research Institute,
East China Electric Power Research Institute,
North China Electric Power Research Institute,
Guangdong Electric Power Research Institute
……

More than 20 technical supervision bureaus and measuring centers(institutes) above provincial level:
South China National Centre of Metrology,
East China National Centre of Metrology,
North China National Centre of Metrology,
Shanghai Institute of Metrology
……

More than 2300 electricity supply bureaus:
Shanghai Electricity Bureaus
Guangzhou Electricity Bureaus
Chongqing Power Supply Bureaus
……

More than 200 Manufactories:
Holley Group
Chint Group
Sanxing Group