Prior to enrichment, uranium yellowcake must be transformed into uranium hexafluoride gas (UF6), which is the feedstock for the centrifuge enrichment process. Reportedly the Iranian "hex" plant is known as the Rudan Nuclear Research Center, located near the town of Fasa near Shiraz in Fars Province. China may have built this plant as part of a secret nuclear cooperation agreement signed in 1991. Other reports suggest that this facility may be located at the Nuclear
Technology Center in Esfahan. Indications of the existence of this facility [wherever it may be located] include Russian press reports of a shipment of uranium hexafluoride gas from China to Iran in late 1994, as well as purchases of hydrogen fluoride from Germany and attempts to buy fluorification equipment from Britain.
Rudan Nuclear Research Center
As of 11 April 2000 Russian 2-meter resolution KVR-1000 imagery coverage was not available via the SPIN-2 service on TerraServer, nor was archived Space Imaging IKONOS 1-meter imagery of this facility available on the CARTERRA™ Archive.
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Updated Wednesday, April 12, 2000 1:55:00 PM