Iran is capable of resuming production of 20% enriched uranium within two days, the spokesman of the Atomic Energy Organization of Iran (AEOI) Behrouz Kamalvandi said on Tuesday.
"If Iran decides, it can have 20% enriched fuel within one to two days," Fars news agency quoted Kamalvandi as saying.
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Enriching uranium up to 20% purity is considered an important intermediate stage on the path to obtaining the 90% pure fissile uranium needed for a bomb.
Already, Iran has gone over limits set by the deal in response to the Trump administration's decision to pull out of the 2015 nuclear deal with world powers and the harsh sanctions it imposed on the regime.
The International Atomic Energy Agency confirmed several weeks ago that Iran's stockpile of low-enriched uranium still exceeded the amount allowed by the deal, which is known as the Joint Comprehensive Plan of Action.
The UN agency also said that Iran continued to enrich uranium up to 4.5%, above the 3.67% allowed.
Enriched uranium at the 3.67% level is enough for peaceful pursuits and is far below weapons-grade levels of 90%. At the 4.5% level, the uranium can help power Iran's Bushehr reactor, the country's only nuclear power plant.
It remains unclear what further steps Iran will take, though it could involve restarting advanced centrifuges prohibited by the deal or by further bumping up its enrichment of uranium.
So far, Iran insists that the steps it has taken are easily reversible.
