On June 29, 2009, NNSA, Rosatom, and a Romanian organization, working together with IAEA removed 23.7 kg of spent HEU fuel from the VVR-S research reactor on Magurele, Romania. It was the first time spent fuel was transported by air. The aircraft, An-124, transported Russian-made TUK-19 containers with spent fuel to the Koltsovo airport (the plane landed on June 30, 2009), from where they were transferred to the Mayak facility.

After this shipment, which was preceded by shipments of fresh fuel, in September 2003 and in June 2009, all HEU has been removed from Romania.