CNOOC Petrochemical Co., Ltd. (hereinafter referred to as CNOOC) is a modern large-scale enterprise under China National Offshore Oil Corporation, which mainly engages in the development, production and sales of fertilizers and chemical products. China Overseas Chemical was established in July 2000 and restructured into a joint-stock company in April 2006. Its headquarters is located in Beijing, and its production units are located in Hainan, Inner Mongolia, Hubei, Heilongjiang, Hebei and other places. On September 29, 2006, China Overseas Chemical was successfully listed on the Hong Kong Stock Exchange with the stock code 3983.

After more than 20 years of hard work, China Overseas Chemical has developed into one of the listed companies with large yields of chemical fertilizers and methanol in China, and has been awarded the title of the leading benchmark enterprise in the synthetic ammonia and methanol industries for 9 consecutive years. It has a urea production capacity of 2.36 million tons, a phosphate compound fertilizer production capacity of 1 million tons, a methanol production capacity of 1.6 million tons and a 60,000 tons of polyformaldehyde.

China Overseas Chemical is one of the producers of nitrogen fertilizers and methanol with large output and high energy consumption benefits in China. Its main business is to produce, develop and sell urea with natural gas as its raw material and synthetic chemical products with high added value. The company has advanced production technology and a huge sales network covers more than 20 provinces, cities and autonomous regions in China.

Since its establishment, China Overseas Chemical has developed rapidly through the development method of combining independent construction and restructuring and mergers and acquisitions. It has developed from a regional company with only one set of fertilizer production equipment to a resource-based company that is involved in nitrogen, phosphorus and potassium. A group listed company that produces and trades chemical products such as fertilizers and methanol is a central enterprise with a large domestic fertilizer production capacity. It has been selected as a demonstration list of green manufacturing system announced by the Ministry of Industry and Information Technology and has become one of the 201 "green factories" in the country.

China Overseas Chemical has always adhered to the spirit of "patriotism, responsibility, struggle and innovation", closely combined its own development with the national modern agricultural development strategy, and strived to create "intrinsically safe, quality and efficiency, scientific and technological innovation, resource conservation and harmony. The five-type development-oriented enterprise contributes value to the realization of farmers' income growth, agricultural development, and rural revitalization.