Shanghai Electric Group Co., Ltd., ExxonMobil (China) Investment Co., Ltd., Jingke Electric Power Technology Co., Ltd., Wison Engineering (China) Co., Ltd., Yingde Gas (Shanghai) Co., Ltd., Shanghai Remodeling Energy Technology Co., Ltd., Yashi Chuangneng Technology (Shanghai) Co., Ltd. and other energy enterprises are mainly engaged in energy development, processing conversion, warehousing, transportation, distribution, trade and service.