Shandong Weijie Chemical Technology Co., Ltd. was established in 2016-04-15, the legal representative is He Jingkuan, the registered capital is 50 million yuan RMB, the unified social credit code is 91370828MA3C961U0P, the enterprise address is located in Jinxiang County, Huji Town, Jining Chemical Industrial Development Zone, belongs to the industry of research and experimental development, the scope of business contains: coke research and development, production, Sales; anthracene oil hydrogenation production technology research, development; coal wholesale, washing; coke, coke particles, machinery and equipment, electronic products, refractory materials, automobile parts, loaders, excavators, steel sales; gas (limited to industrial production of raw materials), naphthalene, crude benzene, coal tar pitch, fine anthracene, coal tar, carbazole (iminodiylbenzene) sales (operating without storage facilities) (validity of the period subject to licensing); Sale of chemical products (excluding dangerous chemicals); production and operation of steam and electricity. (Items subject to approval in accordance with the law, can only carry out business activities after approval by the relevant departments). Shandong Weijie Chemical Technology Co., Ltd. is currently operating as an operating (open) enterprise.

Shandong Jimei Minsheng Coal Chemical Co., Ltd. was established in 2008-12-26, the legal representative is Tan Fangfeng, the registered capital is 300 million yuan RMB, the unified social credit code is 91370800683233988B, the enterprise address is located in Jining City, Jining Jinxiang County, Huji Town, Jining Chemical Industrial Development Zone, belongs to the industry of non-metallic mineral products industry, the scope of business includes: coal tar, Crude benzene, sulphur, gas production and sales (the above items are operated with a licence, the validity of which shall be subject to the licence); coke production and sales; ammonium sulphate production and sales; needle coke and its by-products of the production and sales; steam production and sales; import and export of goods and technology (except for those goods and technologies that are restricted or prohibited by the state). (Items subject to approval by law can only be operated after approval by relevant departments). Shandong Jimei Minsheng Coal Chemical Co., Ltd. is currently operating as an operating (open) enterprise.

Xinjiang Zhongtai (Group) Co., Ltd. is a wholly state-owned company funded by the People's Government of Xinjiang Uygur Autonomous Region and directly supervised by the State-owned Assets Supervision and Administration Commission of the Region. It is one of the top 500 enterprises in China, with nearly 54,000 employees, and has become the first state-owned enterprise in the region with assets and revenues of "double 100 billion". In the 14th Five-Year Plan, the company became the first state-owned Fortune 500 enterprise in the autonomous region, with assets of more than 200 billion yuan, and won the highest award of China Industry Award in 2018, and was ranked 20th in the "Top 25 Most Valuable Brands of the Global Chemical Industry" in 2021. Xinjiang Tianyu Coal Chemical Group Co., Ltd. is a holding subsidiary of ChemChina, which is located in Ira Lake Circular Economy Industrial Park, Toxun County, Turpan City, covering an area of 1,500 acres in the first phase of a 5 million tonnes/year coal fractionation, clean, efficient and comprehensive utilization project, which is important for promoting the conversion of advantageous resources in the local area of Toxun, the local economic development, and Xinjiang's social stability and long-term peace and stability.

Shaanxi Coal and Chemical Industry Group Co., Ltd. (referred to as Shaanxi Coal Group) is a state-owned super large energy and chemical enterprise that has been restructured and developed by the Shaanxi Provincial Party Committee and Government to fully leverage the advantages of Shaanxi's coal resources, starting from cultivating and strengthening the pillar industry of energy and chemical industry, in accordance with modern enterprise system requirements. It is a backbone enterprise of Shaanxi's energy and chemical industry and the main body of the development and construction of coal major bases in the province.

(hereinafter referred to as the Company) is the predecessor of China Petroleum & Chemical Corporation, which was established in July 1983.In July 1998, in accordance with the deployment of the Party Central Committee on the implementation of the strategic restructuring of the petroleum and petrochemical industry, China Petroleum & Chemical Corporation was restructured and established on the basis of China Petroleum & Chemical Corporation, and in August 2018, after the restructuring of the company system, it was transformed into China Petroleum & Chemical Corporation Ltd. The company is a mega petroleum and petrochemical enterprise group with a registered capital of RMB 326.5 billion, the chairman of the board of directors is the legal representative, and the headquarters is located in Beijing. The Company exercises the rights of contributors, such as asset benefit, major decision-making and selection of managers, in respect of the relevant state-owned assets of its wholly-owned enterprises, holding enterprises and shareholding enterprises, operates, manages and supervises the state-owned assets in accordance with the law and bears the responsibility for preserving and increasing the value of the assets accordingly.

North China Petroleum Bureau Co., Ltd. and North China Oil and Gas Branch is a professional team of oil and gas exploration and development with a glorious history of 60 years, covering 22 provinces (municipalities and autonomous regions) in China, and playing a strategic leading role and making important contributions to the discovery and construction of oil and gas fields such as Daqing, Shengli, Central China Plains and Jianghan, etc. After merging into SINOPEC in 2000, it has successfully developed Da Niu Di gas field, the first large-scale gas field constructed by SINOPEC itself, and become the main gas source of SINOPEC in North China. After merging into SINOPEC in 2000, SINOPEC successfully developed the Da Niu Di gas field, the first large gas field built by the Group, which became the main source of gas for SINOPEC in the North China region, and effectively supported the economic construction and regional development of the provinces and regions along the Yellow River Basin, and realised a successful transition from a traditional geological exploration unit to an oil and gas field enterprise. "At the end of 2012, after professional restructuring, the company realised the operation of oil bureau, oil company and engineering section in three parts, and changed its name to North China Petroleum Bureau Co.