1. China Power Engineering Consulting Group Co., Ltd.: Established in 2003, it is the largest energy design consulting enterprise in the world.
2. China Datang Group Co., Ltd.: It is a state-owned enterprise with extensive influence in the energy field. Founded on February 29th, 2002, it mainly involves six sectors: electric power, coal, finance, overseas, coal chemical industry and energy services.
3. China Huaneng Group Co., Ltd.: Founded in 1985, its main business includes power development, investment, construction, operation and management, and power (thermal) production.