Electric Power Research Institute of Yunnan Power Grid Co., Ltd., established on 2005-12-05, Business scope includes commissioning of electrical engineering,detection,Laboratory analysis and performance test;Power new technology product development,Production,Sales;information Technology,Information system development,transfer,training;Power Technology Consulting Services.

Zhejiang Huadian Equipment Testing Research Institute Co., Ltd., established on 2001-02-19, Business scope includes general items: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)(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).licensed items: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).

Changsha Tianheng Measurement and Control Technology Co., Ltd., established on 2006-06-16, The business scope includes electronic measuring instruments,Medical equipment and equipment,measuring tools,General instrumentation,Components for general and special purpose instrumentation,device,Special equipment for electronics and electromechanics,Electrical machinery and equipment,electronic device,Manufacture of metal working machinery;electronic technology,Electrical Technology,R&D of power supply equipment;software development;Electronic Technology Services;Power Supply Service;Electrical Equipment Service;electronic technology transfer;Realtor;Space lease;Self-owned factory lease;property management;Electromechanical equipment processing;Special Purpose Vehicle Sales;car retail;Machinery and Equipment Leasing;Testing equipment rental;Car rental;electric car rental.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

China Southern Power Grid Co., Ltd. EHV Transmission Company Maintenance Test Center, established on 2007-11-09, Business scope includes energy technology research,Technology Development Services;Energy Technology Consulting Services;vocational skills training(Excludes vocational skills training programs that require license approval to operate);Conference and Exhibition Services;Engineering and Technology Research and Experimental Development;Engineering Technology Consulting Services;Engineering cost consulting service;Prepare project budget,budget service;Engineering settlement service;Energy-saving technology promotion service;Technology intermediary service;Science and Technology Information Consulting Services;Science and technology project evaluation service;Scientific and technological achievements appraisal service;Investment Advisory Services;Information Technology Consulting Services;Power Engineering Design Services;Engineering Project Management Services;Engineering supervision service;Communication Engineering Design Services;Electrical Machinery Testing Services;laboratory testing(Those involving licensed projects need to obtain a license before they can engage in business operations);Water Quality Testing Service;Metering Technology Consulting Services;Undertake(build,try)power facilities;

Xi'an Xidian Lightning Arrester Co., Ltd., established on 2007-12-19, The business scope includes lightning arresters and other overvoltage protection devices and ancillary products,Research and development of testing equipment,design,manufacture,Sales and Service;Testing and technical consultation of arresters and accessories;Import and export business of goods and technology(Goods prohibited or restricted from import and export by the state,except technology);Electric Porcelain Appliances,composite material,metallic material,Chemical raw materials(Excluding flammable and explosive dangerous goods)sales and service.(The above-mentioned scope of business involving licensed items,With license certificate,The certificate is operating within the validity period,Do not operate without permission)

SGCC was founded on Dec. 29th, 2002 as a pilot state-owned corporation by the State Council. As a backbone state-owned enterprise that may affect national energy safety and economic lifelines, SGCC's core business is to build and operate power grids and provides secure and reliable power supply for the development of the society. With a registered capital of RMB 200 billion yuan and service area covering 26 provinces,autonomous regions and municipalities directly under the jurisdiction of the Central Government which equals to 88% of the national territory. SGCC carries out the president responsibility system. The president is the legal corporate representative of SGCC. By the end of 2005, SGCC accumulated a total asset of RMB1176.7 billion yuan with a debt-asset ratio of 61.96%, and possessed 195,899 km of 220kV and above transmission lines with a transforming capacity up to 616.64 GVA. SGCC has 1.502 million employees and serves 128 million customers. In 2005, SGCC sold electric power up to 1464.6 TWh and achieved an operation income of RMB 721.4 billion yuan with a net profit of RMB14.4 billion yuan profit & tax of RMB 60.4 billion yuan. SGCC was ranked the 40th in the Fortune Global 500 in 2005.

Wuhan Creative Electric Co. Ltd. is a Chinese private company located in Wuhan that manufactures and distributes voltage cables and connectors.

Central Seven Testing Technology Nanjing Co., Ltd., established on 2016-06-14, Business scope includes licensed projects:Inspection and testing service;Certification Services(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:software development;software sales;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Shenzhen Merrick Electronic Technology Co., Ltd., established on 2006-10-24, Business scope includes general business items:Import and export of goods and technology;Domestic Trade,The licensing program is:electronic product,Instrumentation,Technology development of electronic components,Production, processing and sales.jewelry,Production and sales of gold testing instruments.gold jewelry,platinum,Production and processing of jewelry inlaid accessories.

Part of Hangzhou Daily Press Group, Holley Metering Group Co. Ltd. is a company headquartered in Hangzhou, China. The firm manufactures and sells meter and apparatus products.

State Grid Henan Electric Power Company Electric Power Research Institute, established on 2006-01-18, Business scope includes power technical services,Power Consulting Services;environmental test.

Liaoning Zichen Power Transmission and Transformation Construction Co., Ltd., established on 2016-02-16, Business scope includes general contracting of power engineering construction,Construction general contracting of housing construction,Professional contracting of power transmission and transformation projects,Mechanical and electrical equipment installation engineering construction general contracting,Building decoration project,Water Resources and Hydropower Engineering,Environmental Engineering,Mechanical and Electrical Engineering,City and road lighting engineering,Building Intelligent Engineering,Electronic Engineering,Telecommunications Engineering,Municipal public works,Landscaping project,Steel structure engineering,Fire facilities engineering,plumbing,Automated installation engineering commissioning and construction.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)

Zhongli Talesun Solar Co., Ltd. manufactures and distributes photovoltaic equipment. Its products include ground-mounted and roof-mounted solar power station system, and building integrated photovoltaics. The company was founded in 2010 and is headquartered in Suzhou, China.

China Railway Baoji Bridge Group Co., Ltd., a subsidiary of China Railway Hi-tech Industry Corp. Ltd., is a Chinese company located in Baoji. The firm manufactures steel structure product.

Shaanxi Peiyuan Information Technology Co., Ltd., established on 2013-10-15, Business scope includes general items:Information Technology Consulting Services;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Wholesale of computer software, hardware and auxiliary equipment;Industrial automatic control system device sales;Standardized service;Educational Consulting Services(Education and training activities that do not include licensing approval);Environmental Consulting Services;Forestry Pest Control Services;For-profit private training institutions engaged in scientific and technological training(In addition to the subject classes for primary and middle school students,Language and cultural education and training).(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:Inspection and testing service;Import and export;Technology Import and Export;Import and export agency;Certification Services;HR Services(Excludes job brokerage activities,Labor dispatch 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 Dejin Technology Co., Ltd., established on 2016-11-22, Business scope includes general business items:Instrumentation,Research and development of experimental equipment,Sales and Leasing;Design of automation control equipment,Sales and Installation;Measurement and testing technical consultation;Domestic Trade,Import and export of goods and technology.(law,Except for projects that are prohibited and required to be approved before registration by administrative regulations or decisions of the State Council) ,The licensing program is:

Huai'an Power Supply Branch of State Grid Jiangsu Electric Power Co., Ltd., established on 1991-04-29, The scope of business includes unified operation of power plants owned by the company or entrusted to operate,Domestic electricity purchase and sale business in Huai'an;Manage power construction projects;Electric Energy Trading Service;Engage in planning related to the power industry,design,operation and maintenance,overhaul,Research,consult,test,to build;Distribution of electrical equipment;Operation and production of the enterprise,Import and export business of scientific research related products and technologies;Power talent exchange,information service;Power-specific communication,Management of information networks and systems and facilities,technical transformation,Construction;undertook,Test electrical facilities;electric car sales,lease,operate;Construction and operation of charging and swapping and energy storage facilities;Integrated Energy Services;stay,Catering Services,training.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

● Nanjing Minsheng Electronic Instrument Co., Ltd., founded in 1998, is located in the beautiful Gaochun Economic Development Zone, Jiangsu Province. ● In 2000, the company obtained the "Manufacturing Measuring Instruments License of the People's Republic of China" issued by the "Jiangsu Provincial Bureau of Quality and Technical Supervision". ● The company won the "Nanjing Famous Trademark" and "Nanjing Famous Brand Product" in 2009; In 2010, the company won the "Famous Trademark of Jiangsu Province" and "Famous Brand Product of Jiangsu Province"; In 2011, the company was awarded "National High tech Enterprise" and "Jiangsu Private Science and Technology Enterprise"; In 2012, many of the company's products were awarded "Jiangsu High tech Products" by Jiangsu Provincial Department of Science and Technology. ● The company's products are exported to many countries and regions. ● The company is specialized in the R&D and production of withstand voltage tester series, insulation withstand voltage tester series, insulation resistance tester series, grounding resistance tester series, leakage current tester series, safety comprehensive tester series, medical safety tester series, ultra-high voltage tester series, programmable safety tester series, electrical measurement tester series, digital high voltage meter series, and withstand voltage tester calibration instruments Sales and other services to provide system solutions for industrial testing and analysis of related industries, colleges and universities, communication industry, quality testing institutions, military industry and other industries.

Guangdong Tiansheng Hi-Tech Co., Ltd., established on 2006-03-20, Business scope includes high-tech research and development;Laboratory and engineering project inspection and testing;Textile Testing Services;product features,heat test,Testing service;Product Chemical Characteristic Inspection,Testing service,Product Physical Characteristics Inspection,Testing service,Product System Inspection,Testing service,The product does not change the physical characteristics,shape inspection,Testing service,product ray,Magnetic and Ultrasonic Inspection,Testing service,Other product characteristic inspection,Testing service;Auto Inspection Service;Automobile Performance Testing Service,Automobile Safety Inspection Service,Other Vehicle Inspection Services;Public Safety Testing Service;Public facilities safety inspection service,Public environmental safety and sanitation inspection service,Other Public Safety Testing Services;Environmental Assessment Services;Air Pollution Monitoring Services,Water Pollution Monitoring Services,Waste Monitoring Services,Noise Pollution Monitoring Services;Technology promotion and application services;Industry-university-research cooperation;Technology intermediary service;Intellectual Property Services;Commodity quality inspection and testing technology consultation;Product quality certification consultation,Management System Certification Consulting(No intermediary services);Product quality improvement information consultation;Business Management Consulting;Computer software development and technical consulting;advertisement plan;public relations service;market survey;Commodity Information Consulting Service;Lighting Energy Conservation Engineering Consulting,design;Manufacture of experimental analysis instruments.(The above business scope involves product quality inspection)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Guangdong Huisheng Inspection Technology Co., Ltd., established on 2005-11-17, Business scope includes certification consulting;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Import and export commodity inspection and appraisal;Inspection and testing service;Certification Services