They also urged Iran to honor the United Nations demands to stop enriching uranium and open its nuclear program to international inspectors.

VOA: special.2009.02.07

It promised to give up all of its highly enriched uranium by two thousand twelve.

VOA: special.2010.04.17

In Washington, a military intelligence official told a Senate committee that Iran could be one year away from producing enough highly-enriched uranium for a nuclear weapon.

VOA: special.2010.04.17

He won for producing new radioactive elements beyond uranium.

VOA: special.2009.06.14

Iran has rejected the December 31 deadline set by the international community to accept a deal to enrich its uranium overseas.

VOA: standard.2010.01.04

The U.N.Security Council has imposed three rounds of sanctions on Iran for refusing to stop enriching uranium at home.

VOA: standard.2009.10.19

"With the highly enriched uranium you are still dealing with three to five years to create a weapon."

VOA: standard.2010.04.14

That deal would commit Iran to shipping about 75 percent of its lightly enriched stockpile of uranium to Russia for further enrichment.

VOA: standard.2009.10.21

Until this year, Pyongyang has denied U.S.accusations it possessed a covert HEU, or highly enriched uranium program, in violation of previous agreements.

VOA: standard.2009.09.06

An Iranian official told the Reuters news agency that Tehran would produce the highly enriched uranium at home if the Vienna talks fail.

VOA: standard.2009.10.19

Friday,Tehran delayed its response to a proposal made by the US, France and Russia to further enrich Tehran's existing stockpile of low-grade uranium.

VOA: standard.2009.10.24

She said those include a lack of recognition of the deep concern over Iran's intention to continue enriching some uranium to high levels.

VOA: standard.2010.05.25

"And I really don't know what will disappear first, their enriched uranium or their poor government,"

VOA: standard.2009.06.21

In April,the P5+1 offered Iran a revised package of incentives for it to halt uranium enrichment and return to negotiations over its nuclear program.

VOA: standard.2009.09.11

The plan calls for Iran to send uranium abroad for enrichment, but Tehran countered with conditions to what was presented as a take-it-or-leave-it proposition.

VOA: standard.2009.11.15

"Last September,the world learned that Iran had secretly built another uranium-enrichment facility at Qom, in clear violation of Security Council resolutions and Iran's IAEA obligations."

VOA: standard.2010.06.09

It is also important to secure nuclear materials in countries that enrich uranium for fuel.

VOA: standard.2010.08.06

"Last November,Iran announced that it would build In February, Iran said that it would begin to enrich uranium to nearly 20 percent-moving,closer to weapons-grade material."

VOA: standard.2010.06.09

Officials say the Vienna talks will focus on possibly sending Iran's uranium overseas for enrichment.

VOA: standard.2009.10.04

Iran is already in defiance of repeated Security Council demands that it stop enriching uranium.

VOA: standard.2009.11.30

The international community is worried that Tehran is planning to install a new generation of sophisticated centrifuges to enrich uranium at a much faster pace.

VOA: standard.2009.10.24

Misabiko says the contract for uranium exploration should be made public so there can be an assessment of health conditions in areas near the mines.

VOA: standard.2009.08.12

Iran's top nuclear negotiator, Ambassador Ali Asghar Soltanieh, said Tehran would not stop enriching uranium, but it would still cooperate to some extent with the IAEA.

VOA: standard.2009.11.28

Uranium enrichment is the process used to make fuel for nuclear power plants, but when extended it can also produce fissile material for an atomic bomb.

VOA: standard.2009.11.28

Under the two countries' plan, Iran would send some of its uranium to Turkey in exchange for fuel for use in a Tehran medical research reactor.

VOA: standard.2010.06.09

U.S.officials say Iran's uranium enrichment program is weapons-related, despite Tehran's expression of peaceful intent.

VOA: standard.2010.05.14

Mr.Obama urged Tehran to agree to a U.N.proposal to ship its uranium abroad for processing, adding that time for diplomacy on the issue is running out.

VOA: standard.2009.11.16

The North also said it had reached the final stage of a uranium enrichment program, possibly creating a second process by which it can build nuclear arms.

VOA: standard.2009.09.06

The fact that if Tehran surrendered most of the uranium it has been processing at its Natanz enrichment facility it would ease worries that its effort is weapons related.

VOA: standard.2009.10.24