Doosan Enerbility Co., Ltd. engages in the provision of water treatment, construction and power plant projects. It operates through the following business areas: Power Generation, Water, Industry, Castings and Forgings, and Construction. The Power Generation business offers power plants, power generation equipment, retrofits and upgrades. The Water business provides seawater desalination plants and water treatment systems. The Castings and Forgings business engages in power generation, shipbuilding, iron and steel making, petrochemical and industrial components, mold and tool steel production. The Construction business involves in different plants, civil engineering and architecture. The company was founded on September 20, 1962 and is headquartered in Changwon, South Korea.

Evoqua Water Technologies LLC provides water treatment solutions. Its water and wastewater treatment products include activated carbon, anaerobic digestion, biosolids treatment, disinfection, filtration, odor and corrosion control, physical chemical treatment, aeration and mixing, and electrochemical products. It also offers electrocatalytic, intake equipment, filter press equipment, and media exchange services. The company is headquartered in Warrendale, PA.

Produces and sells chemicals and systems used in water treatment and pollution control

POSCO Holdings Inc. engages in the production of steel products. It operates through the following divisions: Steel, Engineering & Construction and Trading. The Steel division produces cold rolled, hot rolled and stainless steel products, plates, wire rods and silicon steel sheets. The Engineering & Construction division engages in the planning, designing and construction of industrial plants, civil engineering projects, commercial and residential buildings. The Trading division exports and imports steel products and raw materials. The company was founded by Tae-Joon Park on April 1, 1968 and is headquartered in Seoul, South Korea.

Designs and manufactures equipment for water treatment facilities

I.C.F. Srl manufactures and distributes detergents and disinfectants. The company was founded in 1986 and is headquartered in Palazzo Pignano, Italy.

Thames Water Utilities Ltd. provides water and waste water services. It offers property and commercial services. The company was founded in 1989 and is headquartered in Reading, the United Kingdom.

HD Hyundai Heavy Industries Co., Ltd. engages in the manufacture and sale of marine structures, plants, and engines. It operates through the following businesses: Shipbuilding, Naval and Special Ships, Offshore and Industrial Plant Engineering, and Engine and Machinery. The company was founded on June 1, 2019 and is headquartered in Ulsan, South Korea.

Nijhuis Water Technology BV specializes in the design, manufacture and turnkey delivery of ready for use waste water treatment and waste-to-value projects. It offers solutions for primary, secondary and tertiary wastewater treatment, waste to value and disinfection. The company was founded in 1993 and is headquartered in Doetinchem, the Netherlands.

Korea Institute of Civil Engineering and Building Technology contributes to the development of the Korean construction industry.

Daqing CNOOC Qing Petroleum Technology Co., Ltd., established on 2011-03-04, Business scope includes oil drilling,Drilling technology development and technical services;Import and export,Technology Import and Export(law,Except for items prohibited by administrative regulations;law,Projects restricted by administrative regulations can only be operated after obtaining a license);Petroleum Exploration Technology Research,to develop,Research and development of water treatment equipment and motors,manufacture,Sales and Repair,Manufacturing and sales:Special equipment for oil drilling,Equipment(Except for projects prohibited and restricted by industrial policies);Manufacturing of Experimental Instruments,Sales,biotechnology research,to develop,Electronic Information Technology Consulting and Services,metal surface treatment,Manufacture of pressure piping components(See special equipment manufacturing license for details);Sales:Computers and Auxiliary Equipment,Office Automation Control Equipment,Instrumentation,electronic product,Wujinjiaodian,office equipment,steel,Drilling tools and accessories,valve,Pump,High and low voltage electrical appliances,Downhole Tools,building materials,auto parts,Communication equipment,knitted goods,Clothing and shoes,Chemical Products,chemical additives(The above two items do not contain dangerous goods and highly toxic substances);Car rental.

The group is engaged in the manufacture and sale of steel.

Kemira Oyj engages in the provision of water quality and quantity management solutions, which improves energy, water, and raw material efficiency. It operates through the Pulp and Paper, and Industry and Water segments. The Pulp and Paper segment develops and sells products to fulfill customer needs, ensuring the portfolio of products and services for paper wet-end, focusing on packaging and board, as well as tissue products. The Industry and Water segment supports municipalities and water intensive industries in the efficient and sustainable utilization of resources. The company was founded in 1920 and is headquartered in Helsinki, Finland.

Enviro Systems designs and manufactures environmental control systems that provide a safe and comfortable cabin environment. Our integrated systems provide automatic control of cabin pressure and temperature. Our product lines include bleed air valves, outflow valves, vapor cycle air conditioning components, centrifugal & axial fans, sensors, and digital & analog controllers.

Veolia Water Solutions & Technologies Support SAS engages in water plants construction. The company was founded on December 21, 2000 and is headquartered in Saint Maurice, France.

Advanced Water Recovery is a private company headquartered in Rapid City, SD, also operating in US. The firm provides water treatment solutions.

Siemens Industry, Inc. Siemens Water Technologies Corp. provides industrial, municipal, commercial, and consumer water and wastewater treatment systems, products, and services.

ITT Industries Ltd. manufactures pumps and pumping equipment. Its products include valves, weather sensors, actuators, brake pads, and shock absorbers. The company is located in Basingstoke, UK

Anhui Jihong Environmental Protection Technology Co., Ltd., established on 2010-12-22, Business scope includes environmental protection and energy saving technology,Research and development of energy-saving equipment,Production,Packaging Materials,Building Material Development,Sales and technical consultation,transfer;Environmental Product Testing;Research and development of new wall decoration materials,Production,Sales;Agricultural machinery research and development,Production,Sales;Development and Utilization of Agricultural Straw;Urban domestic waste treatment,secondary use.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)***