Siemens AG is a technology company, which engages in the areas of automation and digitalization in the process and manufacturing industries, infrastructure for buildings and energy systems, mobility solutions for rail transport, and medical technology and digital healthcare services. It operates through the following segments: Digital Industries, Smart Infrastructure, Mobility, Siemens Healthineers, and Siemens Financial Services. The Digital Industries segment offers a product portfolio and system solutions for automation used in discrete and process industries. The Smart Infrastructure segment includes products, systems, solutions, services and software to support a transition from fossil to renewable energy sources. The Mobility segment combines all Siemens businesses in the area of passenger and freight transportation. The Siemens Healthineers segment develops, manufactures, and sells diagnostic and therapeutic products, and services to healthcare providers. The Siemens Financial Services segment focuses on financing solutions for Siemens’ customers as well as other companies in the form of debt and equity investments. The company was founded by Johann Georg Halske and Werner von Siemens on October 12, 1847 and is headquartered in Munich, Germany.

Korea Railroad Research Institute is a South Korean private company. The firm operates as railway research body.

Manufactures oil and gas field machinery and equipment

Technip France SA provides technological and engineering services. It offers supply of equipment, construction and project management solutions. The company was founded in 1958 and is headquartered in Courbevoie, France.

Petróleo Brasileiro SA engages in oil and gas exploration, production, and distribution activities. It operates through the following segments: Exploration and Production; Refining, Transportation, and Marketing; Gas and Power; and Corporate and Other Business. The Exploration and Production segment involves crude oil, natural gas liquids, and natural gas exploration, development, and production. The Refining, Transportation and Marketing segment involves refining, logistics, transportation, trading operations, oil products and crude oil exports and imports, and petrochemical investments. The Gas and Power segment includes transportation and trading of natural and liquefied natural gas, the generation and trading of electric power, and the fertilizer business. The Corporate and Other Business segment comprises the financing activities not attributable to other segments including corporate financial management, and central administrative overhead and actuarial expenses. The company was founded on October 3, 1953 and is headquartered in Rio de Janeiro, Brazil.

China Railway First Survey & Design Institute Group Co., Ltd. is a Chinese company ultimately controlled by the Government of China that provides engineering survey, design, supervision and consulting services.

Kawasaki Steel Corporation (Kawasaki Seitetsu) was a Japanese steel manufacturing company.

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.

China Railway Electrification Bureau (Group) Co., Ltd. (doing business as EEB) is a Chinese company ultimately controlled by the Government of China. The firm provides railway electrification construction services.

Sanwa Tekki has been a professional manufacturer and has been involved in the core industries of the railway and electric power. They want to address the needs of customers not only in Japan but also internationally, so that can expand the usage of the technology and products developed in each industry.

ALSTOM Transport Technologies SAS, a subsidiary of Alstom SA, is a company headquartered in Saint-Ouen, France. The firm leases real estate properties. Dominique Bazi is the current CEO of the firm.

China Railway Electrification Survey, Design and Research Institute Co., Ltd., established on 1993-07-03, The scope of business includes undertaking engineering surveys,surveying and mapping,engineering design,consult;Engineering Supervision,EPC,Engineering evaluation(estimate),Procurement of equipment and materials required for engineering projects,to develop,develop,transfer;computer software development,transfer;Own house rental(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Chevron, Inc. manufactures towing and recovery equipment. Its products include fuels and stations, gift and credit cards and motor oils and fuel & additives. The company was founded in 1969 and is headquartered in Mercer, PA.

China Railway Construction Electrification Bureau Group Rail Transit Equipment Co., Ltd., established on 2008-09-25, The business scope includes railway catenary system equipment,Rail transit power supply system equipment,Design of electrical fittings,Manufacturing and Service;Railway catenary system equipment,Rail transit power supply system equipment,Quality inspection and inspection of electric power fittings;communication equipment,power supply equipment,High and low voltage electrical equipment and accessories,Agency and sales of metal and steel structures;Railway catenary system equipment,Research and development of rail transit power supply system equipment,Technical consulting and training services;Self-operated and agent import and export business of various commodities and technologies,Except for commodities and technologies that the state restricts enterprises to operate or prohibits import and export.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments) licensed items:power transmission,powered by,Installation of power receiving facilities,Repair and Test(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,Specific business projects are subject to approval results) General project:Lighting Sales;Sales of signage for traffic and public administration;Intelligent robot sales(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

China Railway 12th Bureau Group Co., Ltd. is a company headquartered in Taiyuan, China and ultimately controlled by the Government of China, that provides design, construction, equipment installation, construction supervision and technical consultation.

Deep Oil Technology, Inc. is a private company headquartered in the United States involved in crude petroleum and natural gas.

China Railway 12th Bureau Group Electrification Engineering Co., Ltd., established on 1993-06-03, Business scope includes construction of railway electrification,communication,Construction of signal and electrical works;Mechanical and electrical equipment installation engineering professional contracting;Communication Engineering Construction General Contracting;Professional contracting of power transmission and transformation projects;Highway Traffic Engineering Professional Contracting Communication,monitor,Integrated System Engineering;220KVand following power metering tests(The above items are subject to the construction enterprise qualification certificate);Property Management Services,Provide labor services for enterprises,Technical Advisory Services;Complete equipment installation;Ordinary machinery,electrical machinery,steel,Wujinjiaodian,Wholesale and retail of daily necessities;Construction general contracting;Railway Electrification Technology,Railway Communication Signal Power Technology,Mechanical and electrical equipment installation technology,Installation Technology of Highway Communication Monitoring Toll System,wind power technology,Housing Technology,Development of high-grade voltage installation test technology,consult,transfer,Serve(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Chugai Ro prepares test equipment for customers. Their product categories parts heat treatment furnaces, material heat treatment furnaces, steel and, non-ferrous metal plants, burner control equipment, combustion control equipment, substrate, film coating, drying equipment, air purification equipment, kiln, and sludge incinerator.