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Iran expanding enrichment capacity after IAEA resolution, diplomats say

By Thomson Reuters Jun 12, 2024 | 3:41 PM

By Francois Murphy and John Irish

VIENNA/PARIS (Reuters) – Iran is responding to last week’s U.N. nuclear watchdog board resolution against it by expanding its uranium-enrichment capacity at two underground sites, but the escalation is not as big as many had feared, diplomats said on Wednesday.

Iran bristles at such resolutions by the International Atomic Energy Agency’s 35-nation Board of Governors, and it reacted to the previous one 18 months earlier by enriching to up to 60% purity, close to weapons grade, at a second site and announcing a large expansion of its enrichment programme.

This time it plans to install more cascades, or clusters, of centrifuges, the machines that enrich uranium, at both its underground enrichment sites, five diplomats said. IAEA inspectors observing Iran’s progress plan to issue a report to member states on Thursday, three of the diplomats said.

“It’s not as much as I would expect,” one Vienna-based diplomat said, referring to the scale of Iran’s escalation.

“Why? I don’t know. Maybe they’re waiting for the new government,” they said, referring to the death in a helicopter crash last month of Iranian President Ebrahim Raisi and Foreign Minister Hossein Amirabdollahian, and the presidential election due to be held on June 28.

The IAEA Board passed a resolution a week ago calling on Iran to step up cooperation with the IAEA and reverse its recent barring of inspectors despite earlier U.S. concerns Tehran would respond with atomic escalation. Only Russia and China opposed.

Diplomats did not go into specifics on the number or type of centrifuges being added or what level they would enrich to, though one diplomat said they would not be used to quickly expand Iran’s production of uranium enriched to up to 60%, close to the 90% of weapons grade.

The diplomats said they would wait to see what the IAEA said Iran had actually done but they were aware of Iran’s plans.

The move is “at the lower end of expectations and something we’re pretty sure they were going to do anyway”, one diplomat said, meaning it would have happened even without the resolution.

Iran did not fully follow through on its November 2022 announcement after the previous resolution. While it installed all the centrifuges it said it would at its underground enrichment plant at Natanz, 12 cascades of one advanced model, the IR-2m, are not yet in operation.

Iran is only enriching to up to 60% at an above-ground pilot plant at Natanz and its Fordow site, which is dug into a mountain. In November 2022 it started enriching to up to 60% at Fordow but it has yet to install all the additional cascades it said it would.

(Reporting by Francois Murphy; Editing by David Gregorio)