
Iran's Atomic Energy Organisation
Iran's government body administering all civilian nuclear activities including uranium enrichment.
Last refreshed: 10 April 2026
What exactly does Iran's Atomic Energy Organisation control?
Timeline for Iran's Atomic Energy Organisation
Mentioned in: Iran hangs former atomic-agency staffer for Mossad spying
Iran Conflict 2026Mentioned in: Grossi: any deal without inspectors is illusion
Iran Conflict 2026Mentioned in: Enrichment Gap Hardens Before Talks Open
Iran Conflict 2026What does Iran's Atomic Energy Organisation actually do?
Why is Iran's nuclear enrichment so controversial?
Can Iran make a nuclear weapon right now?
Background
Iran's Atomic Energy Organisation (AEOI) sits at the centre of the conflict's hardest diplomatic knot. Its head, Mohammad Eslami, publicly declared that demands to restrict enrichment 'will be buried' , directly countering Trump's Truth Social post ruling out any enrichment , in the hours before formal US-Iran talks opened in Islamabad. Iran's accepted 10-point negotiating framework explicitly preserves enrichment rights, making the AEOI's position the de facto Iranian red line entering talks.
The AEIO was established in 1974. It operates Iran's major nuclear facilities including Natanz (centrifuge enrichment, declared capacity), Fordow (buried enrichment site, hardened against airstrikes), and the Bushehr Nuclear Power Plant. Under the 2015 JCPOA, the AEOI was required to cap enrichment at 3.67% and reduce the number of operating centrifuges. Following the US withdrawal from the deal in 2018, the AEOI progressively broke each cap, reaching 60% enrichment by 2023. Weapons-grade is 90%.
The AEOI's dual mandate , civilian nuclear power and the enrichment programme that has strategic ambiguity , makes it the key institution in any arms-control negotiation. Its technical assessments shape IAEA reporting; its cooperation (or lack of it) determines whether verification is possible. Any deal that does not address the AEOI's enrichment capacity is, in practical terms, no deal at all.