The IAEA informed member states that it had it had “verified at FEP [the Fuel Enrichment Plant at Natanz] that Iran was feeding UF6 enriched up to 2 per cent U-235 into the IR-6 cascade [installed in early August]… for the production of UF6 enriched up to 5 per cent U-235”. On 31 August, the Agency reported that Iran had begun using another IR-6 cascade to enrich uranium to the same level.