The IAEA says it is "increasingly concerned" about Iran's Isfahan Fuel Enrichment Plant, in a confidential quarterly report to member states seen by Reuters on Friday 13 November.
Iran declared the plant in June 2025 but has not let inspectors visit it. The report says:
"The Agency does not know IFEP's exact location, status for safeguards purposes, or whether it contains nuclear material"
The IAEA also repeats that it cannot verify Iran's stock of highly enriched uranium and calls this a serious proliferation concern. According to Reuters, as carried by Al-Monitor, the report says Iran should tell the IAEA the status of its enrichment plants and of that stock, which includes near-weapons-grade material. It also says Iran should let inspectors return to the bombed sites.
The IAEA estimates Iran had 440.9kg of uranium enriched to 60% when Israel and the US attacked Iranian nuclear facilities in June 2025. How much of it has survived is unclear.
Iran's security chief Mohsen Rezaei said on 11 November that enriched material will not leave Iran. In May, Reuters reported that two senior Iranian sources said the Supreme Leader had directed that near-weapons-grade uranium should not be sent abroad. The IAEA says it cannot verify the stock, so there is no independent confirmation of how much material Rezaei's statement covers.