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.

Angang Steel engages in the production, processing, and sale of steel products in the People’s Republic of China. Its principal products include hot rolled sheets, cold rolled sheets, galvanized steel sheets, color coating plates, medium and thick plates, heavy sections, heavy rails, wire rods, seamless steel pipes, and cold rolled silicon steel products. Angang Steel also engages in ferrous metal smelting and steel pressing activities. Moreover, it sells building materials, etc.; provides wholesale and retail purchasing services; develops metallurgy and related materials and equipment; and purchases and sells metal and other materials, as well as imports, exports, wholesales, and retails technology products. Angang Steel’s products are used in various industries, such as machinery, metallurgy, petroleum, chemical, coal, power, railway, shipbuilding, automobile, construction, home electrical appliances, and aviation. It also exports its products. Angang New Steel that began operation in 1997 became Angang Steel in June 2006. It has its headquarters in Anshan in the People’s Republic of China as a subsidiary of Anshan Iron and Steel Group.

Shanxi Lu'An Environmental Energy Development Co., Ltd. Engages in the raw coal mining, coal washing, and coal smelting. Its business includes development and utilization of clean coal technology, coal bed methane development, comprehensive utilization of coal, and geological exploration. Its types of coal products and coke products are blended coal, cleaned coal, injection coal, and washed mixed block. Its products are used in power generation, power, coking, and steel industries. The company was founded on July 19, 2001 and is headquartered in Changzhi, China.

Tiandi Science & Technology Co., Ltd. engages in the manufacture and sale of electronic products, environmental protection equipment, mining mechanical and electrical products, and scientific research products. It operates through the following business segments: Coal machinery, Safety equipment, Coal sales, Technology projects, Engineering projects, and Environmental protection equipment. Its services include underground engineering technology development, project design and contracting, enterprise management, construction project management, and development of technology related to mine construction, freezing, grouting, and drilling. The company was founded on March 24, 2000 and is headquartered in Beijing, China.

Henan Tiefulai Equipment Manufacture Co., Ltd. is a Chinese private company located in Pingdingshan. The firm manufactures coal mine equipment.

Chongqing Research Inst of China Coal Tech & Eng Group Corp. is a Chinese company located in Chongqing and ultimately controlled by the Government of China. The firm engages in geological survey and other related operation.

China Petroleum Logging Co. Ltd. is a company headquartered in Beijing, China and ultimately controlled by the Government of China, that provides wellbore technical services includes logging, cable completion logging, engineering logging, perforating, testing and related services.

Ningxia Guangtianxia Technology Co., Ltd., established on 2010-04-23, Business scope includes e-commerce(Except where prohibited by laws and regulations);Development and sales of computer software and hardware;Development of mining equipment and electromechanical equipment,manufacture,Sales,Install;electronic product,energy saving equipment,electronics,Computers and Consumables,security product,Office Equipment and Supplies,electrical equipment,crafts,Chemical Products(Does not contain precursors and dangerous chemicals),coal operation,Energy-saving products,Audio equipment,Sales of decorative materials;Computer system integration and related services.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Jinneng Holdings Coal Industry Group Co., Ltd. is a comprehensive energy company in China. It takes coal production as its mainstay and features the simultaneous development of a variety of industries such as power, chemicals, metallurgy and machinery manufacturing. The company was founded in 1949 and is headquartered in Shaanxi, CN.

Shanxi Coking (Group) Co., Ltd. engages in the production and trading of coke. Its business includes coal mining, import export, warehousing, logistics, coal technology development, and steel trading. The company was founded on July 2, 2002 and is headquartered in Taiyuan, China.

Part of Shun Cheng International Nevada, Henan Shuncheng Group Coal Coke Co., Ltd. (doing business as Shuncheng Group Coal Coke Co., Ltd.) is a company headquartered in Anyang, China, that produces and distributes coke, refined coal, coal and coke byproducts. It was founded by Xin-Shun Wang.

Shanxi Tiandi Coal Machinery Equipment Co., Ltd., established on 2006-08-07, Business scope includes mining machinery,Design of complete sets of hydraulic equipment and components,to develop,Production, sales and technical services;automatic control,Development and product sales of computer and network technology;Coal machine equipment maintenance;Mining Engineering Contracting;import and export:Import and export,Technology Import and Export;Electrical products,Ordinary machinery,building materials(except wood),Instrumentation,metallic material,coal,Sales of coke and other coal products;Mechanical and electrical equipment installation;Machinery and Equipment Leasing.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

China United Coalbed Methane Corp. Ltd. engages in the sales of coal bed methane. Its business scope includes coalbed methane mining and surface mining; gas mineral exploration; sales of coalbed methane; development and utilization of gas in the range of coalbed methane fields; manufacturing, sales, leasing, technical consultation, and information services related to the above business related to construction and equipment; sales of building materials, steel and cement; and warehousing services. The company was founded on May 13, 1996 and is headquartered in Beijing, China.

Shanxi Taigang Stainless Steel Co., Ltd. engages in the production and sale of stainless steel and other steel, billets, ingots, ferrous metals, ferroalloy, and metal products. It involves domestic trade, import, and export of raw and auxiliary materials required for the production of steel. Its products include carbon steel and stainless-steel products such as cold-rolled coil, hot-rolled coil, hot-rolled plate, bar, wire, seamless pipe, welded pipe, and precision strip. Its products are used in emerging industries such as petroleum, chemical industry, shipbuilding, containers, railways, cars, urban light rail, large power stations, and spacecraft. The company was founded on June 11, 1998 and is headquartered in Taiyuan, China.

Guizhou Panjiang Refined Coal Co., Ltd. engages in the mining, washing, processing and sales of coal and electricity. It offers clean coal, mixed coal, belt conveyors, scraper conveyors, bridge-type transfer machines, and mining vehicles. The company was founded on October 29, 1999 and is headquartered in Liupanshui, China.

Huainan Mining (Group) Co., Ltd. principally supplies coal, electricity, and gas. It engages in the mining, washing, preparation, and sales of coal; generation and sales of electricity; as well as utilization of gas. The company was founded in 1930 and is headquartered in Huainan, China.

Jiangsu Shagang Iron and Steel Research Institute Co., Ltd., established on 2007-06-26, The scope of business includes research on iron and steel materials and alloy materials;Superalloy,Corrosion Resistant Alloy,Production and sales of alloy steel;Metallurgical Technology Research,to develop,transfer,consult,Serve;Energy saving and environmental protection,Research on Automation Technology,to develop,transfer,Consulting and Services;Mechanical Equipment Research,to develop,transfer,Consulting and Services;Self-operated and agent import and export business of various commodities and technologies(Except for commodities and technologies that are restricted by the state to be operated by enterprises or prohibited from import and export).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Huozhou Coal and Electricity Group Co., Ltd., established on 1992-05-11, Business scope includes mining of mineral resources:coal mining,processing;coal sales;Power business,electricity supply:power generation;AUTO MECHANIC;car transport;advertising business:design,Create a TV commercial,Publish domestic and foreign advertisements with self-owned TV stations;print printing;Accommodation industry;food production,food business:Catering Services;heat supply,communication,house road repair,sanitation,Landscaping,commercial service;Cable TV line installation and maintenance(limited to internal);water supply;(The above items are limited to branch operations).Computer Information Consulting,network,Computer Integration and Maintenance;Mechanical and electrical equipment repair;Wholesale and retail chemical products(Except for State Controlled Articles),building materials(except wood),Ferrosilicon,Calcium carbide,Corundum;crop farming(Not engaged in agricultural and forestry seed breeding,operate);Aquaculture;Coal mine technology development and service;Development and Utilization of Coalbed Gas;self-built railway,road maintenance;Sales of industrial supplies;water,Electricity,Warm line inspection and maintenance;Metal material processing;own equipment,Realtor;Coal mine mechanical and electrical equipment parts manufacturing;LEDElectronic screen assembly and production;lettering,inkjet;clothing,daily necessities,furniture,stationery,crafts(Except for ivory and its products)promotion of.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Shandong Jinding New Energy Materials Co., Ltd., established on 2011-11-30, Business scope includes general items:Sealing packing sales;Manufacturing of sealing packing;Sales of fire blocking materials;Production of fireproof sealing materials;Manufacture of new membrane materials;Sales of new membrane materials;Mining Machinery Sales;Mining machinery manufacturing;Eco-environmental material manufacturing;Insulation Material Sales;Manufacturing of special machinery for the production of building materials;Sales of high-performance fibers and composite materials;High-performance fiber and composite material manufacturing;synthetic material manufacturing(Free of Hazardous Chemicals);Synthetic Materials Sales.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)