International Atomic Energy Agency chief Rafael Grossi said Monday that a significant portion of Iran’s uranium enriched to nearly weapons-grade levels is believed to remain stored at a tunnel complex in Isfahan, a site that appears to have escaped the severe damage inflicted on other Iranian nuclear facilities during joint Israeli and American strikes last June.

Speaking to reporters, Grossi indicated that close to half of Iran’s uranium enriched to roughly 60% purity—just below the threshold considered weapons-grade—had been stored at the underground facility prior to the attacks and is likely still located there.

The tunnel complex at Isfahan is believed to be the only major location tied to Iran’s nuclear program that did not suffer extensive destruction during the strikes carried out last summer by Israel and the United States.

For years, diplomats have maintained that the Isfahan installation served as a storage location for uranium enriched to the 60% level. The IAEA confirmed in a report distributed to member states last month that such material had indeed been stored at the facility, although the agency did not publicly disclose the total amount kept there.

According to IAEA estimates, when Israel initiated its first wave of strikes in June, Iran had accumulated approximately 440.9 kilograms of uranium enriched to 60%. Based on the agency’s calculations, if that material were enriched further, it could yield enough fissile material to produce as many as ten nuclear weapons.

Grossi told reporters that a large share of that stockpile had been kept at the Isfahan site. “What we believe is that Isfahan had until our last inspection a bit more than 200 kg, maybe a little bit more than that, of 60% uranium,” Grossi told reporters in Paris.

He explained that most of the material had been stored there, while some uranium located at other facilities may have been destroyed during the strikes. “The widespread assumption is that the material is still there. So we haven’t seen – and not only us, I think in general all those observing the facility through satellite imagery and other means to see what’s going on there – movement indicating that the material could have been transferred,” Grossi said.

Since the June attacks, Iran has not updated the IAEA about the condition or whereabouts of its highly enriched uranium, and it has not permitted agency inspectors to return to the nuclear sites that were targeted.

Before the strikes, Iran had three active enrichment facilities: two located at Natanz and another at Fordow. All three installations were either destroyed or sustained major damage during the June attacks.

Grossi also noted that some enriched uranium could still be present at Natanz. “There is an amount (of 60% uranium) in Natanz also, which we believe is still there,” he said.

In recent days, the IAEA chief reiterated his concern about Iran’s growing reserves of uranium enriched to levels approaching weapons grade and the government’s refusal to allow inspectors full access to its nuclear facilities.

“I have been very clear and consistent in my reports on Iran’s nuclear program: While there has been no evidence of Iran building a nuclear bomb, its large stockpile of near-weapons-grade enriched uranium and refusal to grant my inspectors full access are cause for serious concern,” Grossi wrote in a post on social media.

He added that the lack of cooperation from Tehran prevents the agency from offering assurances about the nature of the country’s nuclear program. “For these reasons,” he added my previous reports indicate that unless and until Iran assists the IAEA in resolving the outstanding safeguards issues, the Agency will not be in a position to provide assurance that Iran’s nuclear program is exclusively peaceful,” he added.

{Matzav.com}