The IAEA reported having verified that at the Natanz Fuel Enrichment Plant, “Iran had begun feeding natural UF6 into the third cascade of 174 IR-2m centrifuges”. “The fourth cascade of 174 IR-2m centrifuges was installed but had yet to be fed with natural UF6; installation of a fifth cascade of IR-2m centrifuges was ongoing; and installation of a sixth cascade of IR-2m centrifuges had yet to begin”, the agency indicated.