General Railway Signal, a subsidiary of Alstom SA, is an American company. The firm supplies railway signaling equipment, systems and services. Alstom SA acquired General Railway Signal from Sasib SpA on March 01, 1998.

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.

Shenyang Railway Signal Co., Ltd., established on 1991-09-09, Business scope includes licensed projects:Railway rolling stock manufacturing,Labor dispatch service,Manufacture of railway transportation infrastructure,Inspection and testing service(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:High-speed rail equipment,Parts manufacturing,Manufacture of electrical signaling equipment,Industrial automatic control system device manufacturing,Sales of railway transportation infrastructure equipment,Rail Transit Special Equipment,Sales of key systems and components,High-speed rail equipment,Accessories sales,Railway rolling stock spare parts sales,Sales of special measuring or inspection instruments for railways,Industrial automatic control system device sales,Manufacturing of special equipment(Manufacture of licensed professional equipment not included),General parts manufacturing,Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion,business training(Does not include education and training,Vocational skills training and other licensed training),Non-residential real estate leases,Machinery and Equipment Leasing,Import and export,property management,HR Services(Excludes job brokerage activities,Labor dispatch service)(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Beijing Quanlu Communication Signal Research and Design Institute Group Co., Ltd., established on 1994-11-18, Business scope includes railway communications,protection,Signal,Power and supporting engineering design;Engineering surveys matching the design scope,Engineering geological survey;Architectural Engineering Design;technology development,technical consulting,technology transfer,Technical Services;System Integration Technology Development;Sales of new products that have been identified as qualified after development;System Integration Testing,Install;Import and export;Technology Import and Export;Agent import and export;use<Railway Communication Signal Engineering Technology>Place an ad[Except for projects that have not obtained special permits in the scope of business];Import and export;Technology Import and Export;Agent import and export;publishing,issued<Railway Communication Signal Engineering Technology>.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)

China Railway Research Institute Group Co., Ltd., established on 2002-01-24, Business scope includes rail transport,Related technology and equipment of urban rail transit,System Integration Research,to develop,Production,Sales;contractor,Survey and design,construction,supervision;Material and process,Development of environmental protection technology and its equipment,application;development of computer technology,application;technology development,technology transfer,Technical Services,technical consulting,Technical testing;Environmental Impact Assessment;Import and export business;Technology and product exhibition;advertising business;property management;car park service;lease commercial premises;road freight transport;Risk Assessment of Geological Hazard Prevention and Control.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Road freight transport and items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)

China Railway Jianzhu Group Co., Ltd. is a Chinese company ultimately controlled by the Government of China that develops, invests in, constructs and inspects railway engineering projects.

Casco Signal (Beijing) Co., Ltd., established on 2018-08-22, Business scope includes software development;technology development,technical consulting,technology transfer,Technology Promotion,Technical Services;Urban Rail Transit Equipment,Railway special equipment and equipment,Development of accessories;engineering design;computer system integration;Sales of computer software, hardware and auxiliary equipment;Import and export,Technology Import and Export.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)

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

Jiangsu Tongding Photoelectric Technology Co., Ltd., established on 2006-06-30, Business scope includes railway digital signal cables,Railway Special Cable,Production of communication cables and optical cables;R&D and sales of special cables;The company's self-produced product sales and after-sales service,Technical Advisory Services;Self-operated and agent import and export business of various commodities and technologies;road general cargo transportation.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Communication and Signal Research Institute of China Academy of Railway Sciences Group Co., Ltd., established on 2002-06-24, Business scope includes rail transport,Related technology and equipment of urban rail transit,System Integration Research,to develop,Sales;technology development,technology transfer,Technical Services,Technical Training;Technology Import and Export,Import and export,Agent import and export;advertising business;property management;lease commercial premises.(Enterprises independently choose operating projects according to law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the city's industrial policies.)

Daido Signal Co., Ltd. engages in the manufacture, sale, maintenance, and repair of railway signal safety devices, electrical equipment, and other mechanical devices. It operates through the following business segments: Railway Signal-Related, Industrial Machinery-Related, and Real Estate-Related. The Railway Signal-Related segment provides railway signal equipment. The Industrial Machinery-Related offers information and communication equipment. The Real Estate-Related segment handles the leasing of real estate properties. The company was founded in November 1929 and is headquartered in Tokyo, Japan.

Hebei Jisheng Rail Technology Co., Ltd., established on 2008-12-11, Business scope includes technology research and development of rail transit products,Production,Sales,Design and construction installation;Information Technology Consulting Services;road traffic,Airport,port,Industrial and mining communication equipment,signal device,electric equipment,Production of automatic control equipment,Survey of sales and related project works,design,Install,construction.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Beijing Huatie Information Technology Co., Ltd., established on 1993-01-14, The business scope includes the production of surge protection products;technology development,technology transfer,Technical Services,Technical Training;Rail transport,Computer System Integration of Urban Rail Transit;Information System Design Services,Integration Implementation Services,Operation and maintenance service;Import and export,Technology Import and Export,Agent import and export;Sales rail transport,Urban Rail Transit Equipment.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)

Xi'an Railway Signal Co., Ltd., established on 1991-12-07, Business scope includes general items:Rail Transit Communication Signal System Development;Rail Transit Operation Management System Development;High-speed rail equipment,Parts manufacturing;Manufacturing of Urban Rail Transit Equipment;Manufacture of electrical signaling equipment;Industrial automatic control system device manufacturing;Mechanical and electrical equipment manufacturing;Manufacture of railway rolling stock parts;General parts manufacturing;Communication equipment manufacturing;Sales of railway transportation infrastructure equipment;Railway rolling stock spare parts sales;Rail Transit Special Equipment,Sales of key systems and components;High-speed rail equipment,Accessories sales;Sales of special measuring or inspection instruments for railways;Industrial automatic control system device sales;Sales of electrical signaling equipment;Sales of mechanical and electrical equipment;Communication equipment sales;Intelligent control system integration;Information system integration service;electronic,Mechanical equipment maintenance(No special equipment);electrical equipment repair;Professional repair of communication switching equipment;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Import and export;Technology Import and Export;Machinery and Equipment Leasing;Non-residential real estate leases;property management.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:Manufacture of railway transportation infrastructure;Inspection and testing service.(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)

Shenzhen Keanda Electronic Technology Corp., Ltd. engages in the provision of products, services and system solutions for the rail transit industry. Its products include rail transit signal axle counting systems, railway station yard integrated lightning protection systems, signal monitoring lightning protection distribution line cabinets and turnout snow melting systems. The company also provides engineering construction and system integration services. Shenzhen Keanda Electronic Technology was founded by Feng Ming Guo and Ze Shan Guo on July 30, 1998 and is headquartered in Shenzhen, China.

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.

Tongding Interconnection Information Co., Ltd. engages in the research, development, manufacture, marketing and engineering service for optical fiber, optical and electric communication optical and electric cable, railway signal cable, radio frequency coaxial cable, special optical and electric cable, and electric cable, and optical fiber sensor. The company was founded on April 22, 1999 and is headquartered in Suzhou, China.