Tian Lun Gas Holdings Ltd. operates as an investment holding company that engages in gas sales and engineering installation services. The company is headquartered in Zhengzhou, Henan and currently employs 2,990 full-time employees. The company went IPO on 2010-11-10. The firm operates four segments. The Sales of Natural Gas in Cylinders segment mainly sells natural gas to residential users, industrial and commercial users, and transportation users. The Sales of Natural Gas in Bulk segment mainly sells natural gas directly to city gas companies and wholesale users. The Engineering Construction Services segment is mainly engaged in gas pipeline connection and engineering construction business. The All Other segment is engaged in real estate leasing and other value-added businesses. The firm conducts its businesses in the domestic market.