The Isfahan Nuclear Mystery: Grossi Traces Iran’s Uranium Stockpile as Trump Ties Putin’s Offer to Ukraine

On Thursday, April 30, 2026, Rafael Grossi, Director General of the International Atomic Energy Agency (IAEA), revealed critical assessments regarding the current state of Iran’s nuclear program. Grossi suggested that the majority of Iran’s high-enriched uranium remains stored within the Isfahan Nuclear Complex, despite it being a target of U.S.-Israeli airstrikes over the past year. Satellite imagery confirms the impact of recent raids, but Grossi noted that the specific facility housing the stockpile appears to have escaped direct destruction.

Enrichment Freeze and Tehran’s Defiance

U.S. officials told The Wall Street Journal that Iran has not engaged in further uranium enrichment since the major strikes in June 2025. In response, Tehran’s UN mission maintained that all nuclear materials remain under total IAEA oversight, asserting that not a "single gram" has been diverted. Iran accused the United States of weaponizing the Non-Proliferation Treaty (NPT) to mask its own disarmament failures and the "illegal aggressions" of its allies.

The Complexity of Removal: A Political Deadlock

Grossi described the potential removal of enriched uranium from Iranian soil as a "complex operation" necessitating a solid political framework. Meanwhile, President Donald Trump disclosed that he has sidelined a renewed offer from Russian President Vladimir Putin to transport and store the Iranian stockpile in Russia. Trump signaled that Putin’s cooperation on the Iranian file is secondary to reaching a resolution in the Ukraine war.