List of companies in the nuclear sector

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This is a list of all large companies which are active along the nuclear chain, from uranium mining, processing and enrichment, to the actual operating of nuclear power plant and waste processing.

Company Country of origin Field of operation Brief description of business
Nucleoelectrica Argentina Argentina Electricity generation Nucleoelectrica Argentina SA is a state-owned nuclear electricity company operating Atucha I, Atucha II and Embalse nuclear power plants.
Wild Horse Australia Uranium mining Wild Horse is an Australian-based uranium mining company focusing on development and exploration projects in the United States, Central and Eastern Europe, and in South America.
Energy Resources of Australia Australia Uranium mining Energy Resources of Australia, a subsidiary of Rio Tinto, is an Australian uranium mining company and one of the largest uranium producers in the world, providing 11% of the world's uranium production. It operates the Ranger Uranium Mine.
Paladin Energy Australia Uranium mining Paladin Energy is an Australian mining company developing a number of uranium projects in Australia and Africa.
Electrabel Belgium Electricity generation Electrabel, a subsidiary of GDF Suez, owns and operates Doel and Tihange nuclear power plants. Its wholly owned subsidiary Synatom is dealing with fuel supply and spent fuel management.
Eletronuclear Brazil Electricity generation Eletronuclear, a wholly owned subsidiary of Eletrobrás, operates Angra Nuclear Power Plant.
Bulgarian Energy Holding Bulgaria Electricity generation Bulgarian Energy Holding, through its subsidiary of Kozloduy NPP, owns and operates Kozloduy Nuclear Power Plant.
Cameco Canada Uranium mining, nuclear fuel Cameco is a Canadian mining company accounting for 19% of world uranium production. Cameco owns and operates mines in Canada and the United States and holds land positions in areas for new uranium discoveries in Canada and Australia. In addition to mining, Cameco is also active in refining and conversion of uranium, and fuel manufacturing.
Hathor Exploration Canada Uranium mining Hathor Exploration, a subsidiary of Rio Tinto, is a Canadian uranium mining company. Its main assets are the Midwest NorthEast Project and the Roughrider Deposit.
Star Uranium Canada Uranium mining Star Uranium is a Canadian uranium resources development company.
United Uranium Canada Uranium mining United Uranium is a Canadian uranium resources development company.
Uranium One Canada Uranium mining Uranium One Inc., a subsidiary of ARMZ Uranium Holding, is a Canadian uranium producer with interests in the uranium mines in Kazakhstan, United States, and South Africa.
Canadian Nuclear Laboratories (CNL) Canada Nuclear reactor engineering, EPC Canadian Nuclear Laboratories(CNL) is a state-owned nuclear technology and services company providing R&D support, construction management, design and engineering and waste management of CANDU reactors and products.
Bruce Power Canada Electricity generation Bruce Power is a partnership among Cameco Corporation, TransCanada Corporation, and BPC Generation Infrastructure Trust operating the Bruce Nuclear Generating Station.
Ontario Power Generation Canada Electricity generation Ontario Power Generation, wholly owned by the Province of Ontario, operates the Pickering Nuclear Generating Station and Darlington Nuclear Generating Station. In addition, it also owns the Bruce Nuclear Generating Station leased on a long-term basis to Bruce Power.
Denison Mines Canada Uranium mining Denison Mines is a Canadian intermediate uranium producer operating five uranium mines in the United States and two in Canada, with exploration projects in Canada, the United States, Mongolia, and indirectly in Australia. Through its 97% ownership in OmegaCorp Limited, an Australian uranium mining company, Denison is also involved in the exploration of the Kariba Uranium Project in Zambia. 15% of Denison Mines is owned by Korea Electric Power Corporation.
China Guangdong Nuclear Power Group China Electricity generation China Guangdong Nuclear Power Group is the Chinese state-owned nuclear power company which owns the Guangdong Daya Bay Nuclear Power Station and Ling Ao Nuclear Power Station and building the Hongyanhe Nuclear Power Plant, Yangjiang Nuclear Power Station and Ningde Nuclear Power Station.
China National Nuclear Corporation China Holding China National Nuclear Corporation is a Chinese state-owned energy company, composed of over 100 subsidiary companies and institutes. CNNC is for 45% owner of China Guangdong Nuclear Power Group.
China Nuclear Engineering and Construction Corporation China EPC China Nuclear Engineering and Construction Corporation is the Chinese state-owned construction company of nuclear power utilities. CNECC is the exclusive builder of China's six operating nuclear power stations.
China Nuclear International Uranium Corporation China Uranium mining China Nuclear International Uranium Corporation (SinoU) is the Chinese state-owned company involved in the overseas uranium mining .
Škoda Works Czech Republic EPC, nuclear engineering, nuclear fuel cycle Škoda Praha, a subsidiary of OMZ, is a nuclear engineering company, the main contractor for the technological part of the construction of the Temelín Nuclear Power Station and the Mochovce Nuclear Power Plant.
ČEZ Group Czech Republic Electricity generation ČEZ Group operates the Temelín Nuclear Power Station and Dukovany Nuclear Power Station.
Fortum Finland Electricity generation Fortum is an operator of the Loviisa Nuclear Power Plant. It has minority stakes in the Olkiluoto Nuclear Power Plant in Finland and the Forsmark Nuclear Power Plant in Sweden.
Fennovoima Finland Electricity generation Fennovoima is a developer of the Pyhäjoki nuclear power plant project. It is affiliated with E.ON through E.ON Kärnkraft Sverige.
Teollisuuden Voima Finland Electricity generation Teollisuuden Voima Oyj is an operator of the Olkiluoto Nuclear Power Plant.
Areva France Uranium mining, nuclear fuel cycle, nuclear engineering, EPC Areva is a French nuclear energy group with manufacturing facilities in 43 countries. It covers all industrial activities of nuclear energy.
Eurodif France Uranium enrichment Eurodif, a subsidiary of Areva, is an operator of the uranium enrichment plant at the Tricastin Nuclear Power Center.
Franco-Belge de Fabrication du Combustible France / Belgium Nuclear fuel Franco-Belge de Fabrication du Combustible, a subsidiary of Areva, is a nuclear fuel producing company located in Romans-sur-Isère in France and Dessel in Belgium.
Bouyges Construction France EPC Bouygues Construction, a part of the French family-owned Bouygues group, mainly builds ports, roads, bridges, tunnels, dams and other public constructions, but has also been involved in building, maintaining and dismantling nuclear power plants.
EdF France Electricity generation The EDF Group is a power generation company which operates 58 reactors in 19 different sites. In addition, it has a 45.01% stake in EnBW, and has a 30% stake in the Taishan Nuclear Power Plant. Its subsidiary EDF Energy Nuclear Generation Limited owns and operates eight plants in the United Kingdom.
NucAdvisor France Consulting Services NucAdvisor is a French consulting company established in 2009. It targets its services to new entrants (countries) to the nuclear sector including clients who are implementing research centers, constructing nuclear research reactors and/or civil nuclear power plants and supporting infrastructures. NucAdvisor also provides high level expertise and advice related to new projects, feasibility studies, market analysis, economic and financial support, technical assessment and audits. This expertise is provided to industrial companies, manufacturers of nuclear equipment and nuclear services companies.
Advanced Nuclear Fuels Germany Nuclear fuel cycle Advanced Nuclear Fuels, a wholly owned subsidiary of Areva, is based in Lingen with facilities in Duisburg and Karlstein. It produces UO2 powder, pellets, fuel rods and fuel assemblies, metallic components of the fuel element, and cladding and structural tubes.
Bilfinger Berger Power Services Germany Nuclear engineering, EPC Bilfinger Berger Power Services provides engineering, manufacturing, installation and commissioning of components and systems for nuclear power plants.
E.ON Kernkraft Germany Electricity generation E.ON Kernkraft is a subsidiary of E.ON for operation of nuclear power plants in Germany. It operates the Brokdorf Nuclear Power Plant, Grafenrheinfeld Nuclear Power Plant, Grohnde Nuclear Power Plant, Isar Nuclear Power Plant, and Unterweser Nuclear Power Plant, and has stakes in the Brunsbüttel Nuclear Power Plant, Gundremmingen Nuclear Power Plant, Krümmel Nuclear Power Plant, and Emsland Nuclear Power Plant.
EnBW Germany Electricity generation EnBW, a subsidiary of EDF, through its subsidiary EnBW Kernkraft GmbH operates the Philippsburg Nuclear Power Plant, Obrigheim Nuclear Power Plant, and Neckarwestheim Nuclear Power Plant.
Nukem Energy Germany Nuclear fuel cycle Nukem Energy GmbH, a subsidiary of Cameco, together with its subsidiary Nukem Inc., markets nuclear (reprocessed) fuel components and speciality products.
Nukem Technologies Germany Nuclear waste management; EPC Nukem Technologies GmbH, a subsidiary of Atomstroyexport, is a nuclear engineering and consulting company managing radioactive waste and spent fuel, and decommissioning of nuclear facilities.
GNS Gesellschaft für Nuklear-Service Germany Nuclear waste management; EPC GNS Gesellschaft für Nuklear-Service mbH carries out services in the field of radioactive waste disposal and decommissioning of nuclear facilities. Its subsidiary Deutsche Gesellschaft zum Bau und Betrieb von Endlagern für Abfallstoffe is building and operating nuclear waste repositories.
RWE Germany Electricity generation RWE AG operates the Biblis Nuclear Power Plant, Lingen Nuclear Power Plant and Gundremmingen Nuclear Power Plant.
Siemens Germany Nuclear engineering, EPC Siemens Energy develops and builds power plants and power-generating components. It refurbishes and upgrades the turbine-generator units, including for the nuclear power plants.
Bhavini India Nuclear development Bhavini is a public sector enterprise responsible for the construction, commissioning and operation of all Stage II fast breeder reactors.
Nuclear Power Corporation of India India Electricity Nuclear Power Corporation of India Limited is a public sector enterprise generating about 3% of the total electricity production in India. It operates Tarapur Atomic Power Station, Rajasthan Atomic Power Station, Madras Atomic Power Station, Narora Atomic Power Station, Kakrapar Atomic Power Station, Kaiga Atomic Power Station, and Kudankulam Nuclear Power Plant.
Uranium Corporation of India India Uranium mining Uranium Corporation of India is a public sector enterprise involved in the uranium mining and processing.
Nuclear Fuel Complex India Nuclear fuel Uranium Corporation of India is a public sector enterprise involved in the nuclear fuel production.
Heavy Water Board India Heavy water production Uranium Corporation of India is a public sector enterprise involved in the heavy water production.
National Thermal Power Corporation India Electricity The National Thermal Power Corporation has established a joint venture with the Nuclear Power Corporation of India for construction of nuclear power plants.
Ansaldo Nucleare Italy Nuclear engineering Ansaldo Nucleare, a subsidiary of Ansaldo Energia, a part of the Finmeccanica-Group, works on engineering, construction, operations assistance, waste management and decommissioning projects at nuclear plants worldwide.
Enel Italy Electricity generation Enel has nuclear activities in Russia (no operating projects yet), France (a 12.5% stake in the Unit 3 of Flamanville Nuclear Power Plant), Slovakia (66% stake in Slovenské elektrárne), Spain (92% stake in Endesa) and Italy (a joint venture with Edf named Sviluppo Nucleare Italia Srl).
Electric Power Development Company Japan Electricity generation Electric Power Development Co., Ltd. (J-Power) is constructing the Ōma Nuclear Power Plant.
Tokyo Electric Power Co. Japan Electricity generation Tokyo Electric Power Company, Inc. (TEPCO) is the largest nuclear operator in Japan operating the Fukushima Daiichi Nuclear Power Plant, Fukushima Daini Nuclear Power Plant, and Kashiwazaki–Kariwa Nuclear Power Plant.
Kansai Electric Power Company Japan Electricity generation Kansai Electric Power Company, supplying electric power to the Kansai region, is operating the Mihama Nuclear Power Plant, Takahama Nuclear Power Plant, and Ōi Nuclear Power Plant. About 41% of its electricity is generated from nuclear.
Japan Nuclear Fuel Limited Japan Nuclear fuel cycle Japan Nuclear Fuel Limited is involved in the production of nuclear fuel, as well as the reprocessing, storage and disposal of nuclear waste.
Kazatomprom Kazakhstan Nuclear holding Kazatomprom is a state-owned nuclear holding company in Kazakhstan. Kazatomprom controls all uranium exploration and mining as well as other nuclear-related activities, including imports and exports of nuclear materials in Kazakhstan. The company accounts for 10% of the world uranium production. It owns a 10% stake in Westinghouse Electric Company.
Korea Hydro & Nuclear Power Korea Electricity generation Korea Hydro & Nuclear Power Co. (KHNP), a subsidiary of the Korea Electric Power Corporation, operates 20 nuclear power units at the Kori Nuclear Power Plant, Yeonggwang Nuclear Power Plant, Uljin Nuclear Power Plant, and Wolseong Nuclear Power Plant. In December 2009, KHNP started cooperating with Areva on the development of uranium mining in Niger.
Korea Nuclear Fuel Korea Nuclear fuel Korea Nuclear Fuel, a subsidiary of the Korea Electric Power Corporation, is a manufacturer of nuclear fuels.
KEPCO E&C Korea EPC KEPCO E&C, a subsidiary of the Korea Electric Power Corporation, is a nuclear power design, engineering, and constructing company.
Rössing Namibia Uranium mining Rössing, a subsidiary of Rio Tinto, is an operator of the Rössing uranium mine in Namibia.
Essent Netherlands Electricity generation Essent, a subsidiary of RWE, together with DELTA owns 50% of the Borssele Nuclear Power Station in the Netherlands.
DELTA Netherlands Electricity generation Together with Essent owns 50% of the Borssele Nuclear Power Station in the Netherlands.
COVRA Netherlands Nuclear waste management COVRA is a waste processing and storage company storing the waste of the Borssele Nuclear Power Station in the Netherlands.
Nuclearelectrica Romania Electricity generation The state-owned Societatea Nationala Nuclearelectrica operates the Cernavodă Nuclear Power Plant.
Atomstroyexport Russia Nuclear reactor engineering, EPC Atomstroyexport, a subsidiary of Rosatom, is a nuclear technology provider and constructor for overseas projects.
Inter RAO Russia Electricity generation Inter RAO UES, minority shares owned by Rosatom, operates the Metsamor Nuclear Power Plant in Armenia and is building the Kaliningrad Nuclear Power Plant.
OMZ Russia Nuclear engineering OMZ is a provider of primary circuit equipment for nuclear power plants with pressurized water reactors. Its subsidiary Izhora Plants produces forgings for nuclear reactors.
Atomenergoprom Russia Nuclear holding Atomenergoprom, a subsidiary of Rosatom, is a holding company for Russian civil nuclear industry.
Rosenergoatom Russia Electricity generation Rosenergoatom, a subsidiary of Rosatom, is an operator of all Russian civil nuclear power plants.
Atomenergomash Russia Nuclear engineering Atomenergomash, a subsidiary of Rosatom, is a manufacturer of nuclear power plants' components.
ARMZ Uranium Holding Russia Uranium mining ARMZ Uranium Holding, a subsidiary of Rosatom, is a uranium mining company.
Rosatom Russia Nuclear holding Rosatom Nuclear Energy State Corporation is the successor of the Russian ministry of the nuclear complex. It is a state-owned holding company for the all Russian nuclear sector, including nuclear power related companies, nuclear weapons companies, research institutes and nuclear and radiation safety agencies. It also represents Russia in the world in the field of peaceful use of nuclear energy and protection of the nonproliferation regime.
Tekhsnabexport Russia Nuclear fuel cycle Tekhsnabexport (Tenex), a subsidiary of Rosatom, is a provider of nuclear fuel cycle products and services.
TVEL Russia Nuclear fuel cycle TVEL's activities include development, fabrication and sales (including export sales) of nuclear fuel. TVEL, a subsidiary of Rosatom, consists of 14 enterprises, including mining enterprises, major production entities and supporting infrastructure companies.
OKBM Afrikantov Russia Nuclear engineering OKBM Afrikantov, a subsidiary of Rosatom, is a nuclear reactor design and engineering company.
OKB Gidropress Russia Nuclear engineering OKB Gidropress, a subsidiary of Rosatom, is a nuclear reactor design and engineering company.
Slovenske Elektrarne Slovakia Electricity generation Slovenske Elektrarne, a subsidiary of Enel, is an operator of the Bohunice Nuclear Power Plant and Mochovce Nuclear Power Plant.
GEN Energija Slovenia Electricity generation GEN Energija, a state-owned company, is a co-owner of the Krško Nuclear Power Plant.
UraMin South Africa Uranium mining UraMin, a subsidiary of Areva, is a South-African uranium mining company with activities in South Africa, Namibia, the Central African Republic, Mozambique, Chad, Nigeria, Senegal and Canada.
Eskom South Africa Electricity generation Eskom operates the Koeberg Nuclear Power Station.
Endesa Spain Electricity generation Endesa owns the Unit 1 of Ascó Nuclear Power Plant and has stakes in the Unit 2 of Ascó Nuclear Power Plant (85%), Almaraz Nuclear Power Plant (36%), Santa María de Garoña Nuclear Power Plant (50%), Vandellòs Nuclear Power Plant (72%), and Trillo Nuclear Power Plant (1%).
Iberdrola Spain Electricity generation, EPC The Iberdrola Group has a total installed nuclear capacity of 3,344 MW. It has stakes in the Santa María de Garoña Nuclear Power Plant (50%), Trillo Nuclear Power Plant (49%), Almaraz Nuclear Power Plant (52%), Unit 2 of Ascó Nuclear Power Plant (15%), Cofrentes Nuclear Power Plant (100%), and Vandellòs Nuclear Power Plant (28%). Its subsidiary Iberdrola Ingeniería y Construcción provides EPC services also in France, Russia, Slovakia, Mexico, Brazil, Sweden, Ukraine and Bulgaria.
E.ON Kärnkraft Sverige Sweden Electricity generation E.ON Kärnkraft Sverige, a subsidiary of E.ON Sverige which is a part of the E.ON Group, has stakes in the Forsmark Nuclear Power Plant, Ringhals Nuclear Power Plant, and Oskarshamn Nuclear Power Plant in Sweden, and in the Fennovoima project in Finland.
OKG Sweden Electricity generation OKG, owned by E.ON Kärnkraft Sverige and Fortum, is an operator of the Oskarshamn Nuclear Power Plant.
Vattenfall Sweden Electricity generation Vattenfall has stakes in the Ringhals Nuclear Power Plant and Forsmark Nuclear Power Plant in Sweden, and the Brokdorf Nuclear Power Plant, Brunsbüttel Nuclear Power Plant, and Krümmel Nuclear Power Plant in Germany.
Forsmark Kraftgrupp Sweden Electricity generation Forsmark Kraftgrupp is the operator of the Forsmark Nuclear Power Plant. It is owned by Vattenfall (66%), Mellansvensk Kraftgrupp (subsidiary of Fortum, 25.5%) and E.ON Kärnkraft Sverige (8.5%).
Nordostschweizerische Kraftwerke Switzerland Electricity generation Nordostschweizerische Kraftwerke AG, a subsidiary of Axpo Holding AG, owns and operates the Beznau Nuclear Power Plant and has a stake in the Leibstadt Nuclear Power Plant. Together with Axpo's other subsidiary Centralschweizerische Kraftwerke it owns 68.75% stake in Resun AG.
Resun AG Switzerland Electricity generation Resun AG, owned by BKW FMB Energie AG (31.25%) and the Axpo subsidiaries Nordostschweizerische Kraftwerke AG (57.75%) and Centralschweizerische Kraftwerke AG (11%), plans to build replacement plants for the Mühleberg Nuclear Power Plant and Beznau Nuclear Power Plant.
BKW FMB Energie Switzerland Electricity generation BKW FMB Energy is the owner of the Mühleberg Nuclear Power Plant and has a stake in the Leibstadt Nuclear Power Plant.
Alpiq Switzerland Electricity generation Alpiq has interest in the Gösgen Nuclear Power Plant (40%) and Leibstadt Nuclear Power Plant (32%). It plans to build the Niederamt Nuclear Power Plant.
BHP Billiton UK / Australia Uranium mining BHP Billiton is the world's largest mining company. It owns the Olympic Dam mine, a multi-mineral ore body, which is the largest uranium deposit.
Urenco Group UK / Germany / Netherlands Nuclear fuel cycle Urenco operates in a pivotal area of the nuclear fuel supply chain, including mining, conversion, enrichment and fabrication. It owns and operates enrichment plants in the UK (Capenhurst), Germany (Gronau) and the Netherlands (Almelo). In the US, Urenco owns the National Enrichment Facility in New Mexico. Urenco also owns a 50% interest in Enrichment Technology Company Limited, a joint venture with Areva.
Horizon Nuclear Power United Kingdom Electricity generation Horizon Nuclear Power is developing new nuclear power stations at the Wylfa Nuclear Power Station and Oldbury Nuclear Power Station sites. It is owned by Hitachi.
Magnox Ltd United Kingdom Nuclear decommissioning Magnox Ltd. is responsible for the operation and decommissioning of Magnox nuclear power stations in the United Kingdom.
Sellafield Ltd United Kingdom Nuclear decommissioning Sellafield Ltd. is responsible for the decommissioning of the Sellafield nuclear facility in the United Kingdom.
Energoatom Ukraine Electricity generation Energoatom is a state-owned operator of all nuclear power plants in Ukraine.
Dominion Resources United States Electricity generation Dominion Resources through its three daughter companies operates the Kewaunee Power Station (556 MW, north eastern Wisconsin), Millstone Nuclear Power Plant (2,103 MW, Connecticut), North Anna Nuclear Generating Station (1,806 MW) and Surry Nuclear Power Plant (1,598 MW).
American Atomics, Inc. United States Nuclear reactor manufacturer American Atomics is the manufacturer of an assembly line produced low cost 20 MWe power plant, the AFPR 20, which combines a fast spectrum reactor with a supercritical CO² Brayton cycle turbine genset for off-grid or grid-connected electricity generation.
Duke Energy United States Electricity generation Duke Energy operates the Catawba Nuclear Station, Oconee Nuclear Station, and McGuire Nuclear Station. It plans to build the William States Lee III Nuclear Generating Station.
GE Hitachi Nuclear Energy United States/Japan Nuclear reactor engineering; EPC; Nuclear fuel GE Hitachi Nuclear Energy, a partnership of General Electric and Hitachi (in Japan the partnership is Hitachi-GE Nuclear Energy), is a provider of advanced reactor technology and nuclear services, including manufacturing the nuclear fuel and uranium enrichment services.
NRG Energy United States Electricity generation NRG Energy is an operator of the South Texas Nuclear Generating Station. Together with Toshiba it develops additional units at the plant.
South Carolina Electric and Gas Company United States Electricity generation South Carolina Electric and Gas Company (SCE&G), a subsidiary of SCANA Corporation, is an operator of the Virgil C. Summer Nuclear Generating Station
Southern Company United States Electricity generation Southern Company through its subsidiaries Alabama Power and Georgia Power operates the Joseph M. Farley Nuclear Generating Station, Edwin I. Hatch Nuclear Power Plant, and Vogtle Electric Generating Plant.
UniStar Nuclear Energy United States Electricity generation UniStar Nuclear Energy, a joint venture of EdF and Constellation Energy, is a developer of new units at the Calvert Cliffs Nuclear Power Plant, Nine Mile Point Nuclear Generating Station, Callaway Nuclear Generating Station, and the Bell Bend Nuclear Power Plant.
Westinghouse Electric Company United States Nuclear fuel cycle, nuclear engineering, EPC Westinghouse Electric, a subsidiary of Toshiba, offers nuclear fuel, services, technology, plant design and equipment.
Constellation Energy Nuclear Group United States Electricity generation Constellation Energy Nuclear Group, a joint venture of Constellation Energy and EdF, is an operator of the Calvert Cliffs Nuclear Power Plant, Robert Emmett Ginna Nuclear Power Plant, and Nine Mile Point Nuclear Generating Station.
Nuclear Fuel Services United States Nuclear fuel Nuclear Fuel Services is a nuclear fuel manufacturer.
Sequoyah Fuels Corporation United States Nuclear fuel Sequoyah Fuels Corporation, a subsidiary of General Atomics, is a uranium processing company in the United States.
United States Enrichment Corporation United States Uranium enrichment United States Enrichment Corporation, is a uranium enrichment company in the United States.
US Nuclear Corp United States Radiation Detection, Tritium Equipment US Nuclear Corp. is a radiation detection company in the United States.
Uranium Resources, Inc United States Uranium mining Uranium Resources, Inc. is a uranium mining company in the United States.
Navoi Mining and Metallurgy Combinat Uzbekistan Uranium mining Navoi Mining and Metallurgy Combinat is a uranium mining company in Uzbekistan.

Other of notable nuclear power groups include

See also[edit]

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