China Petrochemical Corporation (Sinopec Group) is a super-large petroleum and petrochemical enterprise group, established in July 1998 on the basis of the former China Petrochemical Corporation. Sinopec Group is a state-owned company solely invested by the state, functioning as a state-authorized investment organization in which the state holds the controlling share. Headquartered in Beijing, Sinopec Group has a registered capital of RMB 231.6 billion. The board chairman of Sinopec Group is its legal representative. Sinopec Group executes the investor rights over related state assets owned by its full subsidiaries, controlled companies and share-holding companies. These rights include receiving returns on assets, making major decisions and appointing management teams. The Group operates, manages and supervises state assets according to related laws, and shoulders the corresponding responsibility of maintaining and increasing the value of state assets. China Petroleum and Chemical Company (Sinopec Corp.), controlled by Sinopec Group, issued H-shares and A-shares at overseas and home respectively in October 2000 and August 2001 and was listed on stock markets in Hong Kong, New York, London and Shanghai. Sinopec Group’s key business activities include: industrial investment and investment management; the exploration, production, storage and transportation (including pipeline transportation), marketing and comprehensive utilization of oil and natural gas; the production, marketing, storage and transportation of coal; oil refining; the storage, transportation ,wholesale and retail of oil products; the production, marketing, storage, transportation of petrochemicals, natural gas chemicals, coal chemicals and other chemical products; the exploration, design, consulting, construction and installation of petroleum and petrochemical engineering projects; the overhaul and maintenance of petroleum and petrochemical equipments; the research and development, manufacturing and marketing of electrical and mechanical equipments; the production and marketing of electricity, steam, water and industrial gas; the research, development, application and consulting services of technology, e-business, information and alternative energy products; the import and export of self-support and agent commodity and technology; foreign project contracting, invite bidding, labor export; the international storage and logistics business. Sinopec Group ranked the 3rd in the Fortune Global 500 in 2014.

Sinopec Corp. Fushun Petrochemical Research Institute, established on 2000-04-14, Business scope includes technology and information research,to develop,application,consultation service;Petrochemical products researched and developed by our institute(Free of Hazardous Chemicals)Production,Sales,Petroleum and petrochemical equipment manufacturing,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)

Zhongxia Xujie Construction Technology Co., Ltd., established on 2010-12-28, Business scope includes environmental engineering,Landscaping project,Municipal Engineering,Design consultation and construction of river and lake improvement projects,Mechanical and electrical engineering construction,Environmental Impact Assessment,Clean manufacturing,Environmental supervision technical consulting services,Environmental pollution remediation technology development,Design Consulting Services and Construction,Technical consulting service for drinking water source protection,Environmental management facility operation technical consulting service,Eco-environmental protection technology,product development,Enterprise Project Management Consulting Services,drinking water equipment,Sales of hardware, electromechanical and water treatment agents,Environmental protection equipment and accessories,Equipment(Except for special equipment)manufacturing(branch only),Sales and Repair,Mechanical and electrical equipment installation,environmental test,Engineering supervision technical consulting service,Instrumentation,Chemical products and chemical reagents(Does not contain hazardous chemicals and other pre-administrative licensing items)promotion of,land development,land consolidation,Land reclamation,soil remediation;Electronic product sales and installation,computer system integration,Industrial automation control system installation and commissioning,Self-operated and agent import and export business of various commodities and technologies(Except for commodities and technologies that the state restricts the company to operate or prohibits the import and export of).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Engba (Wuhan) Ecological Technology Co., Ltd., established on 2016-12-02, Business scope includes general items:Water Environment Pollution Prevention and Control Services;Environmental emergency management service;Engineering and Technology Research and Experimental Development;Manufacture of special equipment for environmental protection;Environmental emergency technical equipment manufacturing;Eco-environmental material manufacturing;Eco-environmental material sales;Environmental emergency technical equipment sales;Environmental protection special equipment sales;Sales of special instruments and meters for environmental monitoring;Atmospheric Environmental Pollution Prevention and Control Services;Manufacturing of sludge treatment equipment;Environmental sanitation public facilities installation services;Engineering Management Services;Import and export;Technology Import and Export;Agricultural Science Research and Experimental Development;Environmental Consulting Services;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Chemical product sales(No licensed chemical products)(Except for licensed business,Can independently operate projects that are not prohibited or restricted by laws and regulations)

Beijing Enterprises Water Group (China) Investment Ltd. engages in the provision of investment service. Its business scope includes (1) foreign investment in accordance with the government permit; (2) provision of services to the investors; (3) set up research and development center to engage in the research and development of new products and hi-tech, transfer its result, and provide corresponding technical services; (4) providing consulting services to its investors and affiliated companies such as market information and investment policies relating to their investment;\n(5) undertake the service outsourcing business of related company and its parent company; and (6)\nengaging in the import, export, wholesale and commission agency of the products produced by the parent company and its affiliates and subsidiaries and providing relevant supporting services. The company was founded on July 20, 2009 and is headquartered in Beijing, China.

Yihao Environmental Technology Co., Ltd., established on 2015-10-27, Business scope includes general items:Environmental governance;Pollution Control Facilities Operation Services;Industrial Wastewater Treatment Level 3;Domestic sewage treatment level two;Construction general contracting;General Contracting of Municipal Public Works Construction;City and road lighting engineering professional contracting;Steel structure engineering professional contracting;Environmental engineering professional contracting;Urban landscaping construction;Garden landscape planning and design,Garden maintenance and management(If the above projects involve permits, they must obtain relevant administrative permits before they can operate);to plant,Sales,Maintenance of green plants(Does not contain forest tree seed production,operate);Construction machinery rental;wholesale,retail:building materials(Does not contain dangerous goods),decorative material(Does not contain dangerous goods),Insulation and anticorrosion materials,Wujinjiaodian,Fire equipment;Sales,Install lighting fixtures;Green facilities,Technology development of water treatment equipment,Technical Services;Green facilities,Water treatment equipment sales,Production.**[Projects subject to approval according to law in the above business scope,Business activities can only be carried out after approval by relevant departments](Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

CECEP Guozhen Environmental Protection Technology Co., Ltd. engages in the provision of water management and sewage treatment service. It focuses on urban water environment comprehensive management, industrial wastewater treatment, and small town environmental management. Its business includes investment operations, environmental engineering's engineering, procurement, and construction business, water treatment equipment production and sales, and water environment design consulting business, Its products and services include municipal wastewater, industrial wastewater, environmental engineering, engineering design, pipe network business, water environment management, film manufacturing, and equipment manufacturing. The company was founded on February 25, 1997 and is headquartered in Hefei, China.

China Railway Environmental Technology Engineering Co., Ltd., established on 2018-02-06, Business scope includes environmental protection technology development services,consult,communication service,transfer service;Water Resources and Hydropower Engineering,Clean and purification engineering design and construction;membrane material,water treatment agent,Production of environmental protection equipment;Special pharmaceutical materials for environmental pollution treatment,Manufacture of special equipment for environmental protection;Green facilities,Special pharmaceutical materials for environmental pollution treatment,Sales of energy-saving and environmentally friendly products;Environmental and Ecological Monitoring;Environmental Comprehensive Management Project Consulting,design,Construction and Operation;water pollution control;Air Pollution Control;Solid Waste Treatment;Hazardous Waste Treatment;Radioactive Waste Treatment;Bio-ecological soil and water environment research and development and governance;Prevention and Control of Heavy Metal Pollution;farmland restoration;Transportation and treatment of food waste(limited branch);Engage in commercial cleaning of municipal solid waste,collect,transportation,processing services;General Contracting of Municipal Public Works Construction;Comprehensive treatment of construction waste and its recycling;new material,new device,Design of energy-saving and environmental protection product engineering,construction;Sewage Treatment and Its Reuse(limited branch);Garbage harmless,Resource processing(limited branch);Municipal Engineering Design Services;Engineering general contracting service;The following business scopes shall not be engaged in deposit taking,Fundraising collection,entrusted loan,Loans and other national financial supervision and fiscal credit business:Invest in environmental pollution control projects with self-owned assets,Investment in Urban Underground Comprehensive Pipe Gallery,to develop,the construction,Operations and Management.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Peking University Technology Development Co., Ltd., established on 1985-05-10, Business scope includes chemical,physics,electronic,Biological Engineering,Biological product,Technology development of computer software, hardware and peripheral equipment,consult,transfer,training,Sales of chemical products(Does not contain dangerous chemicals and a class of precursor chemicals),Computer hardware and software and peripheral equipment,Equipment,Electrical equipment and self-developed products;economic information,Business Management Consulting,training.(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.)

Sinopec Sales Co., Ltd. Zhejiang Taishun Mufeng Gas Station, established on 2000-08-03, Business scope includes licensed projects:Hazardous Chemicals Management;Tobacco retail;food sales;Refined oil retail(Free of Hazardous Chemicals)(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:Lubricant sales;General merchandise sales;car wash service;Motor vehicle charging sales;Sales of Class II Medical Devices;Advertising Design,acting;advertisement making;advertising(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).(Engage in business activities within the business scope of the head office)

Zhonglan Lianhai Design and Research Institute Co., Ltd., established on 1994-03-16, Business scope includes contracting and its strength,scale,Foreign engineering projects that are compatible with performance;Consulting and evaluation of industrial construction investment projects;Survey of industrial and civil construction projects,design,project management,engineering construction(Excluding blasting works),EPC,Technical Services;Whole-process consulting services for construction projects;Environmental engineering special design;Environmental Impact Assessment;security evaluation;Engineering Construction Supervision;project,Tendering agency for goods and services;Government procurement bidding agency;Self-operated and agent import and export business of various commodities and technologies,Except for commodities and technologies that are restricted by the state to be operated by enterprises or prohibited from import and export;Computer Technology Services;Scientific research product development,develop,transfer,Sales;Mineral dressing agent,Sales of environmental protection agents(Does not contain hazardous chemicals);chemical industry,Development of environmental protection equipment,Sales.(Operations involving licenses and qualifications in accordance with licenses and qualifications)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)*** General project:Sales of non-metallic minerals and products(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Shanghai Fanqing Environmental Engineering Co., Ltd., established on 2000-12-06, Business scope includes environmental engineering;water treatment equipment,Environmental protection equipment and supporting manufacturing,Install,debugging;Anti-corrosion engineering;Green facilities,Instrument wholesale,retail,Purchasing agency;Environmental protection equipment maintenance,maintenance service;Operate the export business of mechanical and electrical products and technologies produced by the company;Operate the production of the enterprise,Raw materials for scientific research,Equipment,Instrumentation,Import and export business of spare parts and technology(The state restricts the company's operation and the state prohibits the import and export of commodities and technologies except);Operation of imported materials processing and three to one compensation business;Municipal Engineering;Mechanical and electrical equipment installation;Environmental Engineering;Technical services in the field of sewage treatment engineering and operation of sewage treatment facilities;MSW Services. [Items subject to approval by law,Business activities can only be carried out after approval by relevant departments]

Shandong Tianyi Water Group Co., Ltd., established on 2009-02-24, Business scope includes water purification engineering,Design of Sewage Treatment Engineering,Construction and Technical Services;Design of automatic on-line monitoring equipment for water treatment,Installation and technical service;Water Operations;Municipal Engineering,Water conservancy project,Landscaping project,Construction of lighting projects;Sales:Green facilities.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Guangdong Pengkai Intelligent Equipment Manufacturing Co., Ltd., established on 2015-11-23, Business scope includes general items:Manufacture of special equipment for environmental protection;Environmental protection special equipment sales;Water Environment Pollution Prevention and Control Services;Environmental Consulting Services;Engineering Management Services;Manufacture of special machinery and equipment for water resources;Sewage Treatment and Its Reuse;water pollution control;Seawater desalination;Manufacturing of sludge treatment equipment;Environmental emergency technical equipment manufacturing;Environmental emergency technical equipment sales;Eco-environmental material manufacturing;Eco-environmental material sales;Machinery and Equipment Leasing;Non-residential real estate leases;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Engage in investment activities with own funds;Sales of special instruments and meters for environmental monitoring.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:Construction Engineering Construction;Construction labor subcontracting;Inspection and testing service.(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);Import and export of goods or technology(Except for the import and export of goods and technologies that are prohibited by the state or involve administrative approval).

Pengkai Environmental Technology Co., Ltd., established on 2011-09-09, Business scope includes engineering management services;Engineering and Technology Research and Experimental Development;Sewage Treatment and Its Reuse;water pollution control;Water Environment Pollution Prevention and Control Services;Environmental protection special equipment sales;Manufacture of special equipment for environmental protection;Environmental emergency management service;Seawater desalination;Air Pollution Control;Atmospheric Environmental Pollution Prevention and Control Services;Eco-environmental material manufacturing;Eco-environmental material sales;Environmental emergency technical equipment sales;Sales of water pollutant monitoring and testing instruments;Soil Pollution Control and Restoration Services;Environmental Consulting Services;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Internet of Things Technology Services;IoT application service;water resource management;Machinery and Equipment Leasing;Engage in investment activities with own funds;General machinery and equipment installation services;Solid Waste Treatment;Construction engineering design;Construction Engineering Construction;Import and export;Technology Import and Export

Qingyan Environmental Technology Co., Ltd., established on 2014-07-10, Business scope includes general business items:Research and development of environmental protection engineering technology,Technical Consulting and Technical Services;Research and development of environmental protection equipment and environmental protection materials,Sales;Research and development of environmentally friendly pharmaceuticals and bacterial agents,Sales;Environmental Pollution Control Facilities Management.(The above business items involve licensing,Please obtain approval from relevant departments before operating),The licensing program is:Investment in Environmental Engineering,design,consult,Technical Services,the construction,operate;Environmental protection equipment and environmental protection material manufacturing,processing,Production.

China Coal Science and Industry Group Hangzhou Research Institute Co., Ltd., established on 2000-06-01, Business scope includes licensed projects:Construction engineering design;Construction Engineering Construction(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:Engineering cost consulting business;Engineering and Technology Research and Experimental Development;Research and development of unconventional water source utilization technology;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Environmental Consulting Services;Planning and Design Management;Engineering Management Services;Energy saving management service;water pollution control;Sewage Treatment and Its Reuse;Air Pollution Control;Solid Waste Treatment;Soil Pollution Control and Restoration Services;Ecological Restoration and Ecological Protection Services;Environmental emergency management service;Manufacture of special equipment for environmental protection;Manufacture of special machinery and equipment for water resources;Environmental protection special equipment sales;Eco-environmental material sales;Manufacturing of Specialty Chemical Products(Free of Hazardous Chemicals);Specialty Chemicals Sales(Free of Hazardous Chemicals);gas,Liquid separation and purification equipment sales;Intelligent water system development;Electrical Equipment Sales;Industrial automatic control system device sales;software development;Foreign contracted projects(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).

Yunnan Hexu Environmental Technology Co., Ltd., established on 2012-12-26, The scope of business includes the production of environmental protection equipment;Investment in environmental protection projects;Domestic waste treatment and operation;Sewage Treatment and Operation;Technical development and technical consultation of environmental protection equipment;Design of Environmental Protection Equipment,Sales and on-site installation;Garbage special vehicle sales;Municipal public works,building engineering,Earthwork;Domestic Trade;Operating import and export business.(above laws,Administrative regulations,Except for items prohibited by the State Council,Restricted projects must obtain a license before operating)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Bidepu (Beijing) Environmental Protection Technology Co., Ltd., established on 2007-02-14, Business scope includes technical promotion services;Import and export;Agent import and export;Technology Import and Export;Sales of machinery and equipment,Chemical Products(Free of Hazardous Chemicals).(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.)

Suntar Membrane Technology (Xiamen) Co., Ltd., a subsidiary of Clean Water Investment Ltd., is a Chinese company located in Xiamen that provides integrated process and engineering solutions for separation, purification, and cleaner production purposes in diverse industries by the use of advanced membrane technology. The firm was founded in 1996. Wei Guang Lan is the current CEO of the company.