China Aviation Power Machinery Research Institute is a Chinese private company located in Zhuzhou that provides research and development in aviation industry.

Xi'an Huaqing Science and Education Industry (Group) Co., Ltd., established on 2002-10-10, Business scope includes real estate development and operation;Real estate brokerage;real estate consulting;real estate appraisal;Non-residential real estate leases;Machinery and Equipment Leasing;property management;New material technology research and development;New material technology promotion service;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;tax service;Financial Advisory;market survey(Does not include foreign investigations),Intellectual Property Services(Except for patent agency services)HR Services(Excludes job brokerage activities,Labor dispatch service);Conference and Exhibition Services,Engineering and Technology Research and Experimental Development;Entrepreneurial Space Services,software development;Information Technology Consulting Services,Data processing and storage support services;Manufacture of new building materials(Free of Hazardous Chemicals);Sales of building materials;Educational Consulting Services(Does not include education and training activities that can be approved);business training(Does not include education and training,Vocational skills training and other licensed training);car park service.

Beijing Mechanical & Electrical Engineering Design Department is a company headquartered in Beijing, China and ultimately controlled by the Government of China, that engages in the designing and development of aircrafts.

Beijing Mechanical and Electrical Research Institute Co., Ltd. of China National Machinery Industry Institute Group, established on 2000-09-08, Business scope includes hosting<metal heat treatment>,<Forging Technology>Magazine;Manage the export business of self-produced products and technologies of the company and member units;technology development,technical consulting,technology transfer,Technical Services;Raw and auxiliary materials required for the production of the enterprise and member enterprises,Instrumentation,Equipment,Import business of spare parts and technology(The state restricts the operation of the company and the state prohibits the import and export of goods except);operating incoming material processing and"Three to one make up"business;contractor;Use own<metal heat treatment>,<Forging Technology>magazine post ad;Application software service;selling computers,Software and Auxiliary Equipment;Technical testing;Conference Services;Undertake exhibition and display activities;Office space for rent;property management;Motor Vehicle Public Parking Services.(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.)

Xi'an Maurer Petroleum Engineering Laboratory Co., ltd. is a private company headquartered in Xi'an, China. The firm provides professional technical services.

Shenzhen Haisam Technology Co., Ltd., established on 2020-06-15, Business scope includes general business items:measuring equipment,Vision sensor hardware and software,Processing Equipment,computer software,Instrumentation,Research and development of laboratory equipment,Sales;Industrial product testing technology development,Technical Services,technology transfer,technical consulting;Domestic Trade;Import and export of goods and technology.(law,Administrative regulations,Except for items prohibited by the State Council,Restricted projects must obtain a license before operating),The licensing program is:measuring equipment,Visual sensor products and software and hardware,Processing Equipment,computer software,Instrumentation,Production of laboratory equipment

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)