Most are run by universities and use low-enriched uranium rather than highly enriched uranium.
But the fact that the company was handling highly enriched uranium was never widely publicized.
Iran insists its purposes are purely civilian, asserting it needs enriched uranium to make medical isotopes.
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We learned that Ukraine completed the removal of highly enriched uranium from its territory.
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Highly-enriched uranium is used in some 100 nuclear research reactors and other facilities in 40 countries.
The only other candidate as a nuclear explosive, enriched uranium, was (and remains) difficult to manufacture.
's IAEA said its inspectors found a high level of enriched uranium in Iran.
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It called on states with reactors burning high-enriched uranium to switch to the low-enriched sort.
Instead client countries would have a guaranteed access to low enriched uranium to fuel civil nuclear reactors.
For the first time in years, there was a sustained rise in the price of enriched uranium.
Some are getting rid of their stocks of highly enriched uranium or plutonium, both used in bombs.
With regard to the latter, the bill actually would encumber highly enriched uranium production as well as plutonium.
The six world powers made Iran an offer for stopping its processing of medium-enriched uranium, EU officials said.
But the fear is that the same centrifuges could be reconfigured to make high-enriched uranium for nuclear weapons.
HEU. These might eventually be converted to run on lower enriched uranium, as has happened in the Czech Republic.
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Iran has also said it would like to buy enriched uranium from abroad.
The plan envisages Iran's low-enriched uranium being shipped overseas for processing into fuel.
Iran says it needs enriched uranium for its Bushehr nuclear power plant to generate electricity, and to produce medical isotopes.
Iran has rebuffed calls to halt its production of enriched uranium, saying it has a right to produce peaceful nuclear energy.
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We are continuing research on the feasibility of converting research reactors in the United States and Russia to low-enriched uranium fuel.
Ukraine, Canada, Chile, Mexico and Kazakhstan were among those promising to dispose of bomb-usable enriched uranium or plutonium on their soil.
Iran could also propose first to dispose of its extra 20 percent enriched uranium, which it claims is produced for medicinal purposes.
It recently confirmed it had resumed the conversion of medium enriched uranium into oxide fuel to slow down growth of its stockpile.
Is it possible they simply stopped efforts to produce weapons pending completion of the most difficult part: the production of enriched uranium?
The government offered twenty-five-million-dollar matching grants to companies that could devise a way to produce the material domestically, without using enriched uranium.
Japan's reactors are almost all fueled by enriched uranium, not plutonium-based fuel.
And France agreed to transform the higher-enriched uranium into metallic nuclear fuel.
Canada agreed to give up a significant quantity of highly enriched uranium.
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And by the way, the breach on the agreement was not through plutonium, the breach on the agreement is highly enriched uranium.
In response, Iran declared that it had already successfully enriched uranium, claims that have not been verified by the International Atomic Energy Agency.
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