PetroChina Co. Ltd. engages in the petroleum related products, services and activities. It operates through the following business segments: Exploration and Production; Refining and Chemicals; Marketing; Natural Gas and Pipeline; and Head Office and Other. The Exploration and Production segment involves exploration, development, production, and marketing of crude oil and natural gas. The Refining and Chemicals segment focuses on the refining of crude oil and petroleum products, production and marketing of primary petrochemical products, derivative petrochemical products, and other chemical products. The Marketing segment includes marketing of refined products and the trading business. The Natural Gas and Pipeline segment comprises transmission of natural gas, crude oil, and refined products and the sale of natural gas. The Head Office and Other segment relates to cash management and financing activities, the corporate center, research and development, and other business services supporting the operating business segments of the Group. The company was founded on November 5, 1999 and is headquartered in Beijing, China.

Xuzhou Jinqiao Petrochemical Pipeline Transportation Technology Co., Ltd., established on 2007-07-23, Business scope includes pipeline transportation technology,Chemical product technology development and transfer,consultation service;Crude oil fluidity improver,liquid paraffin,Lubricant Development,Production;Chemical product sales;Equipment,Electrical Equipment,Precision instrument sales and technical services;Self-operated and agent import and export business of various commodities and technologies(Except for goods and technologies that are restricted and prohibited by the state).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments) General project:Research and development of intelligent robots;Artificial intelligence application software development;AI Hardware Sales;Intelligent Instrument Manufacturing;Smart Instrument Sales;Industrial automatic control system device manufacturing;Industrial automatic control system device sales;Manufacturing of electronic components;software development;Sales of Surface Functional Materials;Geological disaster management service;Soil Pollution Control and Restoration Services;Environmental Consulting Services;Security Consulting Services;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Sinopec Pipeline Storage & Transportation Co. Ltd. operates as a storage and transportation company. crude oil wholesale; storage, transportation and sale of oil and gas; research, development and application of pipeline transportation technology and information , pipeline inspection, first-aid repair, pipeline and on-ground engineering design, communication informationalization and pipeline transportation technology training. The company was founded in February 1975 and is headquartered in Xuzhou, China.

China Oil & Gas Pipeline Network Corp. engages in the operation of pipeline transportation enterprise. Its business activities include warehousing services, import of equipment, technology research, information research and application, and technology consultation and promotion. The company was founded on December 9, 2019 and is headquartered in Beijing, China.

Nanjing Beishengrong Energy Technology Co., Ltd., established on 2009-05-11, Business scope includes comprehensive development and utilization of energy technologies;Environmental governance engineering design,construction;Sewage technology treatment;Construction Engineering Consulting Services;Lighting Engineering Design,Install;Maintenance of fire protection facilities;building materials,hardware,Green facilities,lighting fixtures,electronic product,Fire equipment,Electrical Equipment,Stationery,Daily necessities,Office Supplies Sales;Light source lighting production(limited branch),Sales,Serve;Production of air purifiers(limited branch),Sales,Serve;Land and Soil Governance.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Petroleum Engineering Technology Research Institute of China Petroleum & Chemical Corporation Shengli Oilfield Branch, established on 2006-03-22, The business scope includes new technology in the process of oil and gas development,new technology,Research and development of new products,Product sales,Technical Services(Except where prohibited by country restrictions);Computer software development;Water Treatment Technology Research;Quality inspection of drilling and oil production special technology products;Mechanical product processing(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments).