Tian Lun Gas Holdings Limited, together with its subsidiaries, provides gas pipeline construction and infrastructure laying and installation in China. It operates through four segments: Sales of Natural Gas in Cylinders, Sales of Natural Gas in Bulk, Engineering Construction Services, and Other. The company engages in the transportation, distribution, and sale of natural gas and compressed natural gas, as well as production and sale of liquified natural gas in bulk and cylinders. It is also involved in city gas processing, transmission, supply, engineering design, and construction; heating, cooling, and photovoltaic businesses; gasification of rural areas; investment and construction of rooftop distributed photovoltaic systems for power generation; and provision of gas safety support and renewable resource recycling services, financial and health, after-sales, online marketplace, and maintenance services. In addition, the company engages in the trading of natural gas equipment; consulting services; new energy technology development services; gas pipelines designing services; electricity generation; technology promotion and application services; and sales and services of daily necessities for residents. It serves residential, commercial, and industrial customers. The company was formerly known as China Tian Lun Gas Holdings Limited and changed its name to Tian Lun Gas Holdings Limited in September 2021. Tian Lun Gas Holdings Limited was founded in 2002 and is headquartered in Zhengzhou, China.