daughter companies include JSC Khiagda and JSC Dalur. Uranium One is a separate global mining company that operates directly under Rosatom with a diverse portfolio of assets in Kazakhstan, USA and Tanzania. Fuel division The managing company of the Rosatom fuel division is JSC TVEL, which is a leading organization on the global nuclear fuel cycle front-end market and the only supplier of nuclear fuel for Russian NPPs and the nuclear-powered icebreaker fleet. Key daughter companies include Bochvar National Research Institute for Inorganic Materials, Siberian Chemical Combine, and Chepetskiy Mechanical Plant. The division's tasks include the fabrication of nuclear fuel, conversion and enrichment of uranium, and the production of gas centrifuges. Uranium enrichment is carried out at four TVEL Fuel Company plants, including Angarsk Electrochemical Plant in Angarsk, Irkutsk oblast, Zelenogorsk Electrochemical Plant in Zelenogorsk, Krasnoyarsk Krai, Ural Electrochemical Plant in Novouralsk, Sverdlovsk oblast, and the Siberian Chemical Plant in Seversk, Tomsk oblast. Uranium is enriched using an advanced gas centrifuge technology to separate uranium isotopes. Depleted uranium hexafluoride is converted to an oxide form at the W-ECP unit of Zelenogorsk Electrochemical Plant. Nuclear fuel is produced at Rosatom's Machine-building plant (JSC MSZ) and Novosibirsk Chemical Concentrates Plant (JSC NCCP). The plants produce UO2-based (enriched fresh and reprocessed uranium) nuclear fuel for all models of Russian power and research reactors, as well as for many foreign power and research reactor models and for Russian ship-based power installations. The development of accident tolerant fuel for VVER and PWR reactors has now entered the stage of testing. MOX fuel for fast sodium reactors is produced at the Mining and Chemical Combine, while uranium-plutonium mixed fuel will be produced at the Siberian Chemical Plant, which is currently under construction. A uranium-plutonium fuel REMIX (regenerated mixture) being tested for VVER reactors; its commercial production is expected to take place at the Mining and Chemical Combine. SNF reprocessing is carried out at the Mayak Production Association at the RT-1 plant. The plant is currently processing the spent nuclear fuel (of various compositions) from power reactors (BN-350, VVER-440, BN-600, RBMK-1000, VVER-1000; BN-MOX), from the research reactors of Russian and foreign scientific centres, and from the reactors of submarine and surface naval fleet transport power plants. Mechanical engineering division The managing company is JSC Atomenergomash. It is one of Russia's largest groups of mechanical engineering enterprises offering a full range of solutions for the design, manufacture and