VIENNA // Iran has converted most of a nuclear stockpile that it could have turned quickly into weapons-grade uranium into less volatile forms as part of a deal with six world powers, the UN atomic agency reported on Thursday.
The development leaves Iran with substantially less of the 20 per cent enriched uranium that it would need for a nuclear warhead. Iran denies any interest in atomic arms. But it agreed to some nuclear concessions in exchange for a partial lifting of sanctions crippling its economy under the deal, which took effect in January.
Uranium at 20 per cent is only a technical step away from weapons-grade material. By the time the agreement was reached late last year, Iran had amassed nearly 200 kilograms. With further enrichment, that would have yielded almost enough weapons-grade uranium for one atom bomb — a threshold Israel had vowed it would prevent by any means possible.
Under its agreement, Iran agreed to stop enriching to grades beyond 5 per cent, the level most commonly used to power reactors. It also committed to neutralising all its 20 per cent stockpile — half by diluting to a grade that is less proliferation-prone and the rest by conversion to oxide used for reactor fuel.
A confidential IAEA report obtained also said conversion was well under way, with over 50 kilograms of the 20 per cent material rendered into oxide.
Iran has until July to fulfil all of its commitments under the deal. But it has to show progress in exchange for sanctions relief, and it is eager to get its hand on the next tranche of some US$4.2 billion (Dh15.4 billion) of oil revenue funds that were frozen under international sanctions meant to force it into nuclear compromise. It already has received more than half of that amount in exchange for step-by-step implementation of the agreement.
The November deal between Iran and the six — the United States, Russia, China, Britain, France and Germany — is meant to lead to a comprehensive deal placing long-term caps on Iran’s enrichment programme and other atomic activities in exchange for full sanctions relief. The two sides hope to reach agreement by July but can extend negotiations if both agree to do so.
Beyond its commitments to neutralise its 20 per cent uranium stock, the IAEA report said that Iran also was complying with other obligations under the six-month interim plan, which restricts Tehran from expanding any activities that could be turned toward making a nuclear weapon.
* Associated Press
