NIPPON STEEL CORP. engages in the manufacture and trade of steel products. It operates through the following segments: Steelmaking and Steel Fabrication; Engineering and Construction; Chemicals; New Materials; and System Solutions. The Steelmaking and Steel Fabrication segment produces and distributes steel sheets, plates, bars and wire rods, pipes and tubes, and machinery parts. The Engineering and Construction segment develops steel plants, heat management facilities, and industrial machinery and equipment. The Chemicals segment deals with chemical products, carbon materials, and epoxy resin products. The New Materials segment manufactures and trades semiconductors, stainless steel foils, silicon carbide wafers, carbon fibers, and metal substrates for catalytic converters. The System Solutions segment includes information technology infrastructure services. The company was founded in 1886 and is headquartered in Tokyo, Japan.

JFE Steel Corp. engages in the manufacture and sale of steel products. Its products include steel plates for ships and bridges, steel sheet for automobiles, home electrical appliances, and wall and roof construction, special steel, structural steel, stainless steel, steel rods for construction, and steel-pipe. The company was founded on April 1, 2003and is headquartered in Tokyo, Japan

Sumitomo Metal Industries, Ltd. engages in the steel business. It operates through the Steel and Other segments. The Steel segment includes pipes and tubes, sheets and plates, construction materials, railway parts, castings and forgings, bars, and titanium products. The Other segment comprises of real estate leasing and electronic components businesses. The company was founded in April 1897 and is headquartered in Osaka, Japan

POSCO Holdings Inc. engages in the production of steel products. It operates through the following divisions: Steel, Engineering & Construction and Trading. The Steel division produces cold rolled, hot rolled and stainless steel products, plates, wire rods and silicon steel sheets. The Engineering & Construction division engages in the planning, designing and construction of industrial plants, civil engineering projects, commercial and residential buildings. The Trading division exports and imports steel products and raw materials. The company was founded by Tae-Joon Park on April 1, 1968 and is headquartered in Seoul, South Korea.

Vallourec Oil & Gas France SASU engages in the manufacture of steel tubes and pipes. The company was founded on February 25,1992 and is headquartered in Aulnoye-Aymeries, France.

Halliburton Energy Services, Inc. provides oilfield services. It offers technical products and services for petroleum, natural gas exploration and production. The company is headquartered in Houston, TX.

Nippon Steel Stainless Steel Corp. produces and sells stainless steel products. Its products include cold-rolled stainless steel sheets and coils, tandem mill cold-rolled stainless sheets and stainless steels and plates. The company was founded on October 1, 2003 and is headquartered in Tokyo, Japan.

Designs, manufactures and sells mechanical conponents

Part of Vallourec SA, Vallourec Tubes France SAS is a French company located in Boulogne-Billancourt. The firm manufactures steel tubes, pipes, hollow profiles and fittings. Hubert Paris and Didier Hornet are the current co-CEOs of the firm.

Grant Prideco, Inc. is engaged in drill pipe manufacturing. The firm provides engineered connections and premium tubular products that are used in oilfield exploration and development operations. The company was founded in April 2000 and is headquartered in Houston, TX.

China National Petroleum Corporation (CNPC) is an integrated international energy company. Based in China, we have oil and gas assets and interests in over 30 countries in Africa, Central Asia-Russia, South America, the Middle East and the Asia-Pacific. CNPC is China's largest oil and gas producer and supplier, as well as one of the world's major oilfield service providers and a globally reputed contractor in engineering construction, with businesses covering petroleum exploration & production, natural gas & pipelines, refining & marketing, oilfield services, engineering construction, petroleum equipment manufacturing and new energy development, as well as capital management, finance and insurance services. - Crude output: 110.33 million tons per year - Natural gas output: 79.86 billion cubic meters per year - Crude oil production: 53% of China's total - Natural gas production: 74% of China's total - Crude runs: 147.16 million tons per year - Domestic service stations: 19,840 - Domestic pipelines: 66,801 kilometers, including 16,369 kilometers for crude oil (nearly 67% of China's total), 40,995 kilometers for natural gas (77% of China's total) and 9,437 kilometers for refined products ( 48% of China's total) - Providing oilfield services and engineering construction in 63 countries around the world.

QuesTek Innovations LLC provides system design solutions. It offers materials for breakthrough products across diverse industries, dramatically increasing efficiency in development while significantly improving product quality, cost-effectiveness and sustainability. The company was founded in 1996 and is headquartered in Evanston, IL.

AMERICAN Cast Iron Pipe Company, headquartered in Birmingham, Alabama, is a manufacturer of ductile iron pipe, spiral-welded steel pipe, fire hydrants and valves for the waterworks industry and electric-resistance-welded steel pipe for the oil and natural gas industry. AMERICAN's diversified product line also includes static castings and high performance fire pumps.

IPSCO, Inc. produces steel mill products (coil and discrete plate) and fabricated products that include energy tubulars and cut-to-length products (tube, hollow structural, hot-rolled coil, plate, sheet and slab steel). The company has manufacturing and scrap-processing facilities in Canada and the US (mostly in western Canada and the midwestern US). The company's plants produce around 3.5 million tons of steel annually. Its markets include the oil and natural gas, manufacturing, agricultural and transportation industries in Canada and the US. The company was incorporated in 1956 under the name of Prairie Pipe Ltd. and in 1984, the company changed its name to IPSCO, Inc. The company is located in Regina, Canada

Sinopec Tenth Construction Co., Ltd., established on 1989-05-10, Business scope includes petrochemical engineering,construction work,Municipal public works,Mechanical and Electrical Engineering,General contracting of electric power engineering construction;Steel structure engineering,Environmental Engineering,Special Engineering,formwork scaffolding,Professional contracting of fire protection facilities engineering;industry,civil building,Construction supervision of equipment installation project;Environmental friendly,Energy-saving project general contracting;Environmental friendly,Energy saving engineering survey,design,construction,Commissioning and production of required non-standard equipment,Install;Environmental friendly,Procurement of materials required for energy-saving projects,supply;Environmental friendly,Feasibility studies related to energy saving projects;Energy saving technology and environmental protection,Governance Technology Consulting;boiler installation,pressure pipe(Does not include the use of long-distance pipelines to transport hazardous chemicals)Install;Pressure Vessel Manufacturing(On-site assembly and welding of spherical storage tanks);General cargo;Large cargo transportation[Four categories];Contract foreign aid complete project engineering,Overseas petrochemical engineering,Equipment required for domestic international bidding projects and the above-mentioned overseas projects,Material export and labor dispatch;Building Construction,Technical consultation on equipment installation,Technical Services;project service,Project Consulting;Hoisting and transportation;Manufacturing of non-standard equipment;Mechanical equipment repair;Production and sales of mechanical parts;Building materials sales;Import and export trade and entrepot trade;equipment,Realtor;metal heat treatment;The following scope is limited to branch operations:Bridge,door type,tower,Jib Crane Installation,repair;elevator,Installation of light and small lifting equipment,repair;Class I Motor Vehicle Maintenance(Large and medium truck maintenance);Collection of water,Electricity,warm,Property costs.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments).

National Oilwell Varco Co., Ltd., established on 2016-08-18, The scope of business includes the Panyu project signed between Shenzhen Far East Petroleum Drilling and Production Engineering Co., Ltd. and CNOOC Deep Sea Development Co., Ltd.34-1Provide pipe and equipment inspection and maintenance services for gas field development projects.(20017year12moon28to2024year5moon31day)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Tianjin Steel Pipe Group Co., Ltd. (Tel: 15522233345) is also known as "Seamless". After more than 20 years of development, it has become a large enterprise group integrating seamless steel pipe, welded pipe, equipment manufacturing, copper processing, stainless steel plate, color coated plate, gas cylinder and other industries. The main business of seamless steel pipe has industrial competitive advantages in terms of production scale, process technology, scientific and technological research and development, equipment level, varieties and specifications, and has the production capacity of 3.5 million tons of seamless steel pipe annually. The company is committed to the R&D and production of high-end steel pipe products. With strong R&D strength and reliable quality assurance system, it can provide complete supporting solutions for seamless steel pipes required by global energy development. TP series seamless steel pipe products with independent intellectual property rights have been formed. They have successively won one special prize and six second prizes of the National Science and Technology Progress Award, nearly 90 provincial and ministerial science and technology awards, and more than 310 authorized patents. They have become the first batch of innovative enterprises and enterprises with intellectual property advantages in China. In 2015, the company won the honorary title of the first Tianjin Quality Award and the nomination award of the second China Quality Award. Seamless steel pipes are used for oil drilling to maintain a high domestic market share and maintain long-term stable trade relations with nearly 100 countries and regions. The company actively implements the international development strategy, and has developed a way from technology introduction, digestion and absorption to technology output and overseas investment and factory building. In 2007, he participated in the construction of Belarus seamless steel pipe project, realizing the technology import and technology export. In 2009, the Indonesian pipe processing project was completed and put into operation. At present, the seamless steel pipe project is being implemented in Texas, the United States. The first phase has been completed and put into operation, and the second phase is progressing smoothly. The company promotes low-carbon economy, green manufacturing and cleaner production, and has successively passed the ISO14001 environmental management system, occupational health and safety management system certification, and implemented the section according to the new environmental protection law

Wuhan Iron & Steel Co., Ltd. engages in the processing and manufacturing of iron and steel products. Its products include silicon steel, hot-rolled, cold-rolled, section steel, wire and rod. The company was founded in 1954 and is headquartered in Wuhan, China.