Yunnan Provincial Energy Investment Group Co., Ltd. ("Yunnan Energy Investment Group" or "YEIG") is a provincial state-owned enterprise (SOE) based in Yunnan Province, China. YEIG is principally engaged in the investment and management of natural gas, hydropower, power grid, and coal energy businesses worldwide. The company is also involved in the investment and management of other energy-related industries, such as environmental protection and new energy; as well as investment in oil and gas resources and pipe network projects. In addition, it provides investment-related technical, investment planning and consulting management, and information services.