Overview
- Rafael Grossi said the agency’s best estimate is that a large share of Iran’s highly enriched uranium remains at the Isfahan nuclear complex, with no on‑site checks since inspections stopped in mid‑2025.
- Airbus satellite images from June 9, 2025, captured a truck carrying 18 blue containers into an Isfahan tunnel, and the IAEA believes those containers likely still hold the material.
- The agency reports Iran has 440.9 kilograms of uranium enriched up to 60% purity, and it estimates about 200 kilograms are stored in tunnels at Isfahan, which is a short technical step from weapons‑grade.
- Grossi said inspectors also need access to Natanz and Fordo, and he called current findings an informed estimate because the IAEA cannot verify seals or measure material on the ground.
- The IAEA has discussed removing the stockpile from Iran or blending it down with Russia and others, but Grossi said either move would require a political deal or a risky military operation, even as broader U.S.–Iran talks and ceasefire diplomacy remain unresolved.