Dong Zhi Wang

ENN Group International Investment Ltd. operates as an investment holding company. The company is headquartered in British Virgin Islands.

Xinao Gas Development Co., Ltd. engages in the provision of gas distribution services. Its business scope includes construction, installation, and maintenance of gas facilities, gas appliance repairs, gas distribution. general cargo road transportation, road transport of dangerous goods, and self-owned equipment rental. The company was founded on June 26, 2001 and is headquartered in Langfang, China.

Abterra Ltd. is an investment holding company, which engages in the distribution and supply of coal, coke, and iron ore in regional and international markets. It operates through the Iron Ore Trading, and Coke and Coal Trading segments. The company was founded on June 2, 1999 and is headquartered in Singapore.

Xinao Holdings Investment Co., Ltd. operates as an investment holding company. It was founded on January 13, 2000 and is headquartered in Langfang, China.

Langfang Natural Gas Co., Ltd. engages in the sale of liquefied petroleum gas products. Its business activities include design and installation of gas pipeline and facilities, sale and maintenance of gas equipment, installation of liquefied petroleum gas storage and distribution station, and retail of diesel oil, lubricating oil, and gasoline products. The company was founded on December 5, 1992 and is headquartered in Langfang, China.