Techsnabexport
Techsnabexport, internationally known as TENEX, is a Rosatom-owned exporter and international supplier of uranium, uranium-enrichment services, and nuclear-fuel-cycle technologies.
Last updated November 4, 2026
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Overview
Techsnabexport, commonly known internationally as TENEX, is a Russian state-owned nuclear-fuel-cycle trading and services company. It operates within the Rosatom group and serves as an international commercial channel for Russian uranium products, uranium conversion and enrichment services, nuclear-material handling, and related technologies. Its customers and counterparties have included utilities, national nuclear organizations, reactor vendors, enrichment companies, research institutions, and government-linked organizations in Europe, North America, Asia, and the Middle East. The company’s institutional roots reach back to the Soviet uranium industry. In 1949, a technology-export organization created a working group to supply equipment and technical materials to uranium mines in Eastern Europe. That activity developed into a technical supply office in 1952, serving mining enterprises in East Germany, Czechoslovakia, Romania, Poland, and Bulgaria. After administrative transfers during the 1950s, Techsnabexport was formally established on 17 July 1963 as an import-export bureau. Its initial mandate covered equipment for uranium mining, settlement of clearing payments connected with uranium imports, and international trade in a broad range of specialized materials and technologies, including rare metals, radioactive and stable isotopes, radiation sources, measurement systems, accelerators, and X-ray equipment. The business became increasingly focused on the nuclear-fuel cycle. In 1971, it concluded its first contract for uranium-enrichment services with France’s Atomic Energy Commission. During the 1970s and 1980s, it expanded commercial relationships with Italy, West Germany, Sweden, Spain, Finland, the United Kingdom, Belgium, and South Korea. In 1975, the enterprise was reorganized as an independent company, and in 1988 it was transferred to the Soviet ministry responsible for the nuclear industry, the institutional predecessor of Rosatom. Following the dissolution of the Soviet Union, TENEX remained an important vehicle for Russia’s international nuclear trade. During the restructuring of the Russian nuclear sector between 2002 and 2007, it acquired or consolidated assets in uranium mining, engineering, and chemical production. Many of those non-core assets were later transferred to specialized Rosatom subsidiaries, including TVEL, ARMZ Uranium Holding, and other industrial holdings. In 2007, Techsnabexport was integrated with Atomenergoprom, whose shares are owned by Rosatom. A major chapter in the company’s history was its role in the international disposition of Russian weapons-derived uranium. Under a 1994 agreement with the United States Enrichment Corporation, TENEX supplied low-enriched uranium produced by downblending highly enriched uranium removed from Russian nuclear weapons. The program continued through 2013 and became one of the most prominent commercial nuclear-material arrangements between Russia and the United States. In 2008, an amendment to the U.S.-Russian suspension agreement on uranium imports created conditions for broader commercial access for Russian uranium products to the U.S. market. TENEX also supplies natural uranium, enriched uranium, conversion and enrichment services, regenerated uranium services, and products made to non-standard uranium specifications. Its materials are used in fuel production for nuclear power plants and research reactors. The company has been particularly significant in supplying enrichment services for reactors of foreign design. Beyond uranium trading, it develops spent-nuclear-fuel storage and transport systems, radioactive-waste-management equipment, customer-site infrastructure, reprocessing and uranium-material handling, and specialized logistics. Its international activity has extended beyond conventional fuel supply. TENEX signed contracts with China National Nuclear Corporation in 2008 covering technical support for a gas-centrifuge facility and future enrichment services and enriched-uranium deliveries. In 2012, it agreed to supply low-enriched uranium to the Emirates Nuclear Energy Corporation for the Barakah nuclear power plant, with deliveries scheduled over a long-term period. It was also appointed in 2017 as the sole Russian organization authorized to arrange foreign-trade transactions for importing irradiated nuclear-fuel assemblies into Russia for reprocessing. In the same year, it received authorization to transport low-enriched uranium through Russia for the International Atomic Energy Agency’s low-enriched-uranium bank in Kazakhstan. Since 2016, TENEX has participated in Japanese post-Fukushima research and cleanup-related work. Together with Russian technical organizations, it contributed to the development of neutron-detection equipment for identifying fuel-debris fragments and later took part in research into the aging behavior of corium and other damaged-fuel materials. The company has also diversified into radioactive-waste and spent-fuel services, transport and logistics, biofuel trading, and evaluation of lithium resources. Its first reported global wood-pellet deliveries took place in 2019, supported by FSC and SBP supply-chain certifications. TENEX remains strategically important because it combines access to Russian nuclear-industry production with international contracting, licensing, logistics, and customer-service capabilities. Its position is shaped by the strategic nature of uranium and enrichment, the long duration of nuclear-fuel contracts, and geopolitical and regulatory restrictions affecting trade with Russia. The company’s reported long-term order portfolio and international customer base reflect the capital-intensive and multi-decade character of the nuclear-fuel business.
History
Techsnabexport originated in the Soviet Union’s effort to organize international technical support for uranium mining and the wider nuclear industry. In 1949, Technoexport established a special group to supply equipment to uranium mines in Eastern Europe. A technical supply office was created in 1952, serving mining organizations in East Germany, Czechoslovakia, Romania, Poland, and Bulgaria. The office was transferred during a 1955 reorganization to Mashinoexport. On 17 July 1963, Techsnabexport was established as an import-export bureau. Its early responsibilities included supplying mining equipment, administering clearing arrangements connected with uranium imports, and trading in specialized nuclear and industrial materials. Its mandate covered rare-earth elements, rare and refractory metals, radioactive and stable isotopes, radiation sources, measurement equipment, accelerators, and X-ray systems. In 1971, the company signed its first uranium-enrichment-services contract with France’s Atomic Energy Commission. Additional agreements followed with European countries and South Korea during the 1970s and 1980s. In 1975, it became an independent company, and in 1988 it moved under the Soviet ministry responsible for the nuclear sector. After the Soviet period, TENEX became a principal international commercial representative of Russia’s nuclear-fuel-cycle industry. During the restructuring of the sector from 2002 to 2007, it consolidated assets in uranium mining, engineering, and chemicals. Those assets were subsequently reorganized among specialized Rosatom companies. In 2007, Techsnabexport was integrated with Atomenergoprom, a Rosatom-owned holding structure. The company’s most internationally visible transaction was its participation in the U.S.-Russian program to convert weapons-derived highly enriched uranium into low-enriched uranium for commercial reactor fuel. A 1994 agreement with the United States Enrichment Corporation provided for deliveries through 2013. In 2008, a revised suspension arrangement created a legal framework for a broader return of Russian uranium products to the U.S. market. TENEX’s later business has combined uranium products with technical services. It supplies natural and enriched uranium, conversion and enrichment services, regenerated uranium, and other uranium-containing materials. It also develops systems for spent-fuel storage and transportation, radioactive-waste handling, reprocessing, customer-site infrastructure, and nuclear logistics. Major international relationships have included Chinese nuclear organizations and the Emirates Nuclear Energy Corporation. In 2017, TENEX received exclusive Russian authority for foreign-trade transactions involving imported irradiated fuel assemblies and was authorized to support transport for the IAEA low-enriched-uranium bank in Kazakhstan. The company has also undertaken nuclear remediation and research work. Since 2016, it has cooperated with Japanese organizations on Fukushima Daiichi recovery. Projects included neutron detection for fuel debris and studies of the long-term behavior of corium and damaged-fuel materials, drawing on Russian nuclear research capabilities and experimental samples. In 2019, TENEX reported international wood-pellet deliveries and began evaluating lithium resources, reflecting an effort to develop business outside its traditional uranium portfolio. Despite this diversification, its central identity remains that of a Rosatom-controlled international supplier of uranium, enrichment, and nuclear-fuel-cycle services.
- 2019
International biofuel deliveries
[1]The company reported its first international wood-pellet deliveries and pursued diversification into biofuel and lithium-related activities.
- 2017
Expanded regulatory mandate
[1]TENEX became the sole Russian organization authorized to arrange foreign-trade transactions for imported irradiated fuel assemblies and was authorized to support the IAEA fuel bank.
- 2012
Barakah fuel-supply agreement
[1]TENEX agreed to supply low-enriched uranium to the Emirates Nuclear Energy Corporation for the Barakah nuclear power plant.
- 2008
Expanded U.S. market framework
[1]An amendment to the U.S.-Russian uranium suspension arrangement established conditions for commercial Russian uranium-product supplies to the United States.
- 2007
Integration with Atomenergoprom
[1]Techsnabexport became part of Atomenergoprom within the Rosatom group after a period of nuclear-industry consolidation.
- 1994
Weapons-derived uranium supply program
[1]TENEX signed the agreement that enabled long-term U.S. purchases of low-enriched uranium made from Russian weapons material.
- 1988
Transferred to the Soviet nuclear ministry
[1]The company moved under the Soviet ministry responsible for the nuclear industry, a predecessor of Rosatom.
- 1975
Reorganized as an independent company
[1]Techsnabexport was reorganized into an independent enterprise focused increasingly on uranium enrichment for foreign customers.
- 1971
First uranium-enrichment services contract
[1]TENEX signed its first enrichment-services agreement with France’s Atomic Energy Commission.
- 1963
Techsnabexport formally established
[1]The company was founded on 17 July as an export and import bureau for nuclear and specialized industrial goods.
Products and positioning
A state-backed international nuclear-fuel-cycle supplier and trading platform connecting Rosatom’s uranium, conversion, enrichment, engineering, and waste-management capabilities with foreign customers.
Nuclear fuel-cycle material
Natural uranium
TENEX markets natural uranium produced within the Russian nuclear-fuel-cycle system. The material is supplied as an input for conversion, enrichment, and eventual fabrication into fuel for commercial power reactors and research reactors.
Nuclear fuel-cycle material
Enriched uranium
Enriched uranium is one of TENEX’s core international offerings. The company supplies enriched uranium products manufactured by Russian nuclear-fuel-cycle enterprises for use in reactor-fuel production, subject to contract, regulatory, and international trade requirements.
Nuclear services · 1971
Uranium conversion and enrichment services
TENEX contracts conversion and enrichment capacity from Russian nuclear-industry enterprises and supplies those services to foreign customers. Enrichment services became central to the company’s international business after its first contract with France in 1971.
Nuclear waste management
Spent-fuel and radioactive-waste systems
The company develops storage and transport systems for spent nuclear fuel, supplies radioactive-waste-management equipment, and can help build related infrastructure at customer sites. These activities extend TENEX beyond commodity uranium trading into integrated nuclear-material management.
Nuclear logistics · 2017
Nuclear logistics and transport
TENEX provides transport and logistics services for uranium products, nuclear materials, and related shipments. In 2017, its mandate was expanded to include foreign-trade arrangements for imported irradiated fuel assemblies and transport connected with the IAEA low-enriched-uranium bank.
Biofuel · 2019
Wood pellets
As part of its diversification efforts, TENEX began making wood-pellet deliveries to international markets in 2019. The company reported FSC and SBP certification for its wood supply chain, linking the offering to recognized sustainable-forestry and biomass-supply standards.
Marketing campaigns
- 2017IAEA Low Enriched Uranium Bank logistics
Kazakhstan · Russia · International
TENEX was authorized to move low-enriched uranium through Russian territory for the IAEA’s fuel bank in Kazakhstan.
Outcome. The assignment supported the international reserve-fuel mechanism designed to provide a backup source of reactor fuel.
- 2016Fukushima Daiichi recovery cooperation
Japan · Russia
TENEX cooperated with Japanese partners on technologies for locating, characterizing, and studying damaged nuclear-fuel debris after the Fukushima Daiichi accident.
Outcome. The work included neutron-detector development and subsequent research projects on the aging behavior of corium and fuel-debris materials.
- 1994U.S.-Russian weapons uranium conversion program
United States · Russia
TENEX supplied low-enriched uranium to the United States after highly enriched uranium removed from Russian nuclear weapons was downblended for commercial reactor fuel.
Outcome. The supply program continued through 2013 and became a major long-term nuclear-material trade relationship between the two countries.
Brand decisions
2019
Diversification into biofuel and lithiumStrategyBackground
TENEX was evaluating additional business lines beyond its established uranium and nuclear-services portfolio.
Action taken
The company began international wood-pellet deliveries and evaluated lithium deposits for possible future development.
Aftermath
The move broadened the company’s stated commercial scope, although nuclear-fuel-cycle activities remained its central business.
2012
Long-term Barakah uranium-supply decisionOtherBackground
The United Arab Emirates was developing the Barakah nuclear power plant and required long-term fuel supplies.
Action taken
TENEX contracted with the Emirates Nuclear Energy Corporation to supply low-enriched uranium from 2015 to 2029.
Aftermath
The agreement extended TENEX’s presence into the emerging Gulf nuclear-energy market.
2008
Expansion of access to the U.S. uranium marketStrategyBackground
U.S. restrictions and the suspension arrangement had limited the commercial entry of Russian uranium products into the American market.
Action taken
Rosatom and the U.S. Department of Commerce signed an amendment developed with TENEX participation to establish conditions for broader commercial supplies.
Aftermath
The amendment created a legal framework for Russian uranium products to re-enter the U.S. market under agreed conditions.
2007
Integration into AtomenergopromStrategyBackground
Russia was consolidating its nuclear industry into a state-controlled structure, while TENEX had accumulated assets across uranium mining, engineering, and chemical activities.
Action taken
Techsnabexport was integrated with Atomenergoprom, a holding structure wholly owned by Rosatom.
Aftermath
Non-core assets were subsequently allocated to specialized Rosatom subsidiaries, leaving TENEX focused more clearly on international trading and nuclear-fuel-cycle services.
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