On September 24, 2015, the U.S. National Nuclear Security Administration assisted Uzbekistan in completing removal of the last remaining HEU from the country. The transfer, carried out in cooperation with Russia and the IAEA, was completed on September 24, 2015. The shipment included irradiated fuel if the IIN-3M/Foton reactor that was operated by the Foton Enterprise in Tashkent.
The Foton reactor is an aqueous pulsed reactor. Its active zone contained 27 liters of UO2SO4 solution containing about 5 kg of U-235. It was shut down in June 2013. The transfer has been part of the U.S.-Russia-IAEA effort to repatriate Russian-origin fuel (RRRFR program) with funding provided by the United States as part of its GTRI program (recently restructured to become the Material Management and Minimization Program, M3). The agreement with Russia was finalized in February 2014.
HEU has now been completely removed from 29 countries plus Taiwan. Still, 27 countries have at least 1 kg of highly-enriched uranium in their stocks.