China BlueChemical Limited or China BlueChemical is the largest nitrogenous fertilizer manufacturer in Mainland China

Mainland China

Mainland China, the Chinese mainland or simply the mainland, is a geopolitical term that refers to the area under the jurisdiction of the People's Republic of China . According to the Taipei-based Mainland Affairs Council, the term excludes the PRC Special Administrative Regions of Hong Kong and...

 by production volume and energy efficiency

Efficient energy use

Efficient energy use, sometimes simply called energy efficiency, is the goal of efforts to reduce the amount of energy required to provide products and services. For example, insulating a home allows a building to use less heating and cooling energy to achieve and maintain a comfortable temperature...

, engaging in processing of natural gas

Natural gas

Natural gas is a naturally occurring gas mixture consisting primarily of methane, typically with 0–20% higher hydrocarbons . It is found associated with other hydrocarbon fuel, in coal beds, as methane clathrates, and is an important fuel source and a major feedstock for fertilizers.Most natural...

 for production of chemical fertilizers and other chemical products. It is headquartered in Dongfang

Dongfang

Dongfang is one of the 7 county-level cities of Hainan province, People's Republic of China. It is located on the western coast of Hainan Island facing Vietnam across the Gulf of Tonkin, and in 2004 had a population of 435,000.-Climate:...

, Hainan

Hainan

Hainan is the smallest province of the People's Republic of China . Although the province comprises some two hundred islands scattered among three archipelagos off the southern coast, of its land mass is Hainan Island , from which the province takes its name...

. Its parent company

Parent company

A parent company is a company that owns enough voting stock in another firm to control management and operations by influencing or electing its board of directors; the second company being deemed as a subsidiary of the parent company...

 is CNOOC, the third largest petroleum

Petroleum

Petroleum or crude oil is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. Petroleum is recovered mostly through oil drilling...

 state-owned enterprise in Mainland China.

Its H shares were listed on the Hong Kong Stock Exchange

Hong Kong Stock Exchange

The Hong Kong Stock Exchange is a stock exchange located in Hong Kong. It is Asia's third largest stock exchange in terms of market capitalization behind the Tokyo Stock Exchange and the Shanghai Stock Exchange and fifth largest in the world...

 on 29 September 2006.