Based on reporting by Al-Monitor

Wire reporting: (Reuters, via Al-Monitor)

The International Atomic Energy Agency told member states Friday it still cannot inspect a uranium-enrichment plant at Isfahan that Iran declared in 2025, according to a confidential report seen by Reuters and carried by Al-Monitor¹.

Iran declared the Isfahan Fuel Enrichment Plant, or IFEP, on June 12, 2025, the report said. A visit scheduled for the next day did not happen after Israeli and U.S. strikes on Iranian nuclear sites began that day, Reuters reported¹.

The agency said it does not know the plant's exact location, its status for safeguards, or whether it holds nuclear material, and that Iran has not allowed inspectors to visit or to review design information¹. Diplomats have said they believe the plant is in a tunnel network at Isfahan that was among the June 2025 targets; a senior diplomat said its whereabouts and condition remained unknown¹.

Iran has not allowed IAEA inspectors back to nuclear facilities struck in that 12-day campaign, which damaged other enrichment plants, the report said. IAEA Director General Rafael Grossi said in March the agency believed a significant amount of Iran's most highly enriched uranium was in the Isfahan tunnel complex¹.

The paper again said Iran should report the status of enrichment plants and of its highly enriched uranium stock, including material close to weapons grade, and allow inspectors to return and account for that material. The agency described the information and access gap as a serious proliferation concern that should be addressed urgently¹.