ENN Energy Holdings Limited is an investment holding company that invests in, constructs, operates, and manages gas pipeline infrastructure in the People's Republic of China. It operates through segments including Retail Gas Sales, Integrated Energy, Wholesale of Gas, Construction and Installation, and Smart Home. The company distributes piped gas, liquefied natural gas (LNG), and other multi-energy products, operates vehicle gas refueling stations, and provides low-carbon integrated solutions, serving residential, commercial, and industrial customers. Formerly known as XinAo Gas Holdings Limited, it changed its name to ENN Energy Holdings Limited in September 2010; it was founded in 1989 and is headquartered in Langfang, China.