1. Electrical Research Institute of Yunnan Power Grid Co., Ltd.,Kunming,China
2. Construction Branch of Yunnan Power Grid Co., Ltd.,Kunming,China
3. Qujing Power Supply Bureau of Yunnan Power Grid Co., Ltd.,Qujing,China
4. Pu’er Power Supply Bureau of Yunnan Power Grid Co., Ltd.,Pu’er,China
5. Kunming Power Supply Bureau of Yunnan Power Grid Co., Ltd.,Kunming,China