Powerchina Zhongnan Engineering Corp. Ltd. is a Chinese company located in Changsha and ultimately controlled by the Government of China that provides hydraulic engineering services.

Lihe Technology (Hunan) Co., Ltd. engages in the manufacture, research and development of automation monitoring instrument for environmental monitor, industrial automation, environmental safety and other related industries. Its product categories include water quality monitoring, atmospheric monitoring, industrial monitoring, system integration, and water sampling. The company was founded on May 29, 1997 and is headquartered in Changsha, China.

Hubei Zhuoli Centralized Control Intelligent Technology Co., Ltd., established on 2008-10-23, The scope of business includes freezing,air conditioner,Thermal equipment,Integrated automatic control of general electromechanical equipment,System engineering installation,control integration;Research and development of energy-saving products for integrated intelligent control system equipment,Production,Sales;Industrial system intelligent integrated control engineering installation,research and development,transform;Building automation;Industrial automation control and development;computer software,Hardware Integration and Development(Those involving licensed items in the business scope must go through the licensing procedures before operating)++

Shenyang Yihui Technology Co., Ltd., established on 2017-09-20, The scope of business includes exploration and development of oil and gas fields and technology development in the field of energy conservation and environmental protection,technology transfer,technical consulting,Technical Services;Geological exploration of oil and gas projects and blocks,Development design and oil recovery technology,Comprehensive study of ground construction,Well location deployment implementation and supporting services;Supporting technical services for oil and gas field exploitation and implementation of enhanced oil recovery projects;Oil and gas well testing,Workover,Find a blocked water,fracture,acidification,sidetracking,profile control,Deep control and drive technology services,prepare;drilling,Mud logging,Logging,Completion,Job technical services;software development;Research and development of energy-saving and environmental protection technologies for oil and gas fields,supporting services;Geothermal Utilization Technology Services;Environmental friendly,Design of complete sets of water treatment equipment and accessories,research and development,system integration;Computer hardware and software,Energy-saving equipment for oil and gas fields,Mechanical and electronic equipment,Instrumentation,Chemical Products(Free of Hazardous Chemicals)promotion of;Environmental Engineering,Municipal public works construction;Import and export,Technology Import and Export(Except for the import and export of goods and technologies that are prohibited by the state or involve administrative approval).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)

Henan Single Point Study Abroad Intermediary Service Co., Ltd., established on 2013-06-09, Business scope includes self-funded study abroad intermediary services;Immigration Information,business information,Legal information consulting service and translation service.Involved in licensing projects,It should be operated after obtaining the permission of the relevant department

Qingdao Weixi Intelligent Technology Co., Ltd., established on 2016-04-06, Business scope includes licensed projects:Import and export;Technology Import and Export;Production of Class II Medical Devices.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)General project:Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Building Decoration,Manufacture of plumbing parts and other metal products for construction;Sales of plastic products;R&D of sanitary ware;Sanitary Ware Manufacturing;Sanitary Ware Sales;Manufacturing of sanitary ceramics;Sales of sanitary ceramics;Hardware retail;gas,Liquid separation and purification equipment sales;Sales of Class I Medical Devices;Production of Class I Medical Devices;Sales of Class II Medical Devices;electronics sales;AI Hardware Sales;Household Appliance Manufacturing;Research and Development of Household Appliances;Home Appliance Sales;Communication equipment sales;Communication equipment manufacturing;Sporting Goods and Equipment Retailing;Sales of daily chemical products;Security System Monitoring Services;Mechanical and electrical equipment manufacturing;Information Technology Consulting Services;Health Consulting Services(Does not include medical services);Housekeeping.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Zhejiang Rich Leo Environmental Technology Co., Ltd. engages in producing of EGR delete kit and valve for diesel engines. Its products include heat exchanger, EGR valve & cooler, vacuum soloenoid, metallic honeycomb, cooler tube and other related products. The company was founded on November 11, 2009 and is headquartered in Wenling, China.

Yellow River Survey, Planning and Design Research Institute Co., Ltd., established on 2003-09-16, Business scope includes licensed projects:Compilation of land and space planning;Construction Engineering Survey;Construction engineering design;Construction Project Supervision;Construction supervision of water conservancy projects;Quality inspection of construction projects;Water Conservancy Engineering Quality Inspection;Inspection and testing service;Mapping service;Geological disaster control engineering survey;Geological disaster control engineering design;Geological Hazard Risk Assessment;Special Equipment Design;Building Intelligent System Design;Indoor environment detection;Civil Air Defense Engineering Design;Safety Evaluation Business(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)General project:Planning and Design Management;water resource management;Hydrological Services;Engineering and Technology Research and Experimental Development;Environmental Consulting Services;Water Conservancy Related Consulting Services;Engineering cost consulting business;Soil Erosion Prevention and Control Services;Engineering Management Services;Bidding agency service;Information Technology Consulting Services;software development;Geographic Remote Sensing Information Service;Metering technical service;Information system integration service;Intelligent water system development;Computer System Services;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Emerging energy technology research and development;Energy Storage Technology Services;Solar Power Technology Services;Wind Power Technical Services;Geological Exploration Technical Services;Soil Pollution Control and Restoration Services;Soil Environmental Pollution Prevention and Control Services;Agricultural non-point source and heavy metal pollution prevention and control technical services;Land Consolidation Services;Water Environment Pollution Prevention and Control Services;water pollution control;Atmospheric Environmental Pollution Prevention and Control Services;Environmental Protection Monitoring(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Kaili Hongda Water Conservancy and Hydropower Transmission and Transformation Engineering Co., Ltd., established on 1993-05-08, Business scope includes legal,regulations,Those prohibited by the State Council's decision shall not operate;law,regulations,The State Council has decided to allow(approval)of,After approval by the examination and approval authority(approval)file management;law,regulations,The State Council has decided that a license is not required(approval)of,Market entities independently choose to operate.(Water Conservancy and Hydropower Project Construction General Contracting Grade II(Operate within the scope specified in the qualification certificate),Level 2 professional contracting of hydraulic metal structure fabrication and installation engineering,Professional contracting of water conservancy, hydropower and electrical installation engineering,Municipal public works construction(Operate within the scope specified in the qualification certificate),Steel structure engineering professional contracting;Earthwork excavation,land governance,land leveling,Landscaping;building materials,Pipes and accessories,Hardware sales;cargo freight.)