Iran proposes three-stage deal to cap enrichment if US lifts sanctions

The plan was presented by Iran’s foreign minister Abbas Araghchi in writing to US President Donald Trump’s special envoy Steve Witkoff during the three-hour talks.

Tehran proposed that in the first stage, it would temporarily reduce its uranium enrichment level to 3.67% in exchange for access to financial assets frozen by the United States and permission to export its oil, the diplomatic sources told Iran International.

In the second phase, the sources added, Iran would permanently end high-level enrichment and restore the United Nations nuclear watchdog's inspections if the United States lifts further sanctions on Iran and persuades Britain, Germany and France to refrain from triggering the so-called snapback of UN sanctions on Tehran.

In this phase, Iran would also commit to implementing the Additional Protocol, a supplementary agreement that allows the UN nuclear watchdog to carry out surprise inspections at sites not declared to the agency.

Tehran ended that compliance in February 2021 after Trump in his first term withdrew from a previous international deal over Iran's nuclear program in 2018.

The third and final stage calls for the US congress to approve the nuclear agreement and for Washington to lift both primary and secondary sanctions, while Iran would transfer its highly enriched uranium stockpiles to a third country.

Iran denies seeking a nuclear weapon and the US intelligence assesses that Tehran has not yet resolved to build one, but the Trump administration has warned Iran it must come to a nuclear deal or face attack.

A second round due to be held in Rome on Saturday could prove more rocky than the amicable first round in which Iran submitted its plan for a deal.

Washington toughened its public stance on Tuesday, with both the White House and Witkoff saying that the US goal in negotiations would be the wholesale end of Iran's nuclear program, a notion Iran has repeatedly called a non-starter.

Iran's proposal welcomed by Witkoff

US envoy Witkoff welcomed the proposals presented by the Iranian side, the sources told Iran International, surprising the Iranian delegation in Muscat.

Iranian officialdom appeared cheered by the first round of talks, with Supreme Leader Ali Khamenei remarking in a meeting with senior military commanders on Tuesday that "the initial steps have been implemented well".

A diplomatic source outside Tehran expressed skepticism to Iran International of the Islamic Republic's intentions in the talks and said it seeks to delay a foreign attack by staggering an agreement over several complex phases.

“One of the reasons Iran’s Supreme Leader agreed to allow the resumption of negotiations is the need to buy more time, because he knows Iran currently lacks the ability to defend itself against another airstrike," the source said.

“Iran is mainly stalling to buy time to rebuild its air defense capabilities, which were all destroyed by Israel in late October, and to restore its capacity to produce surface-to-surface missiles which were damaged in that same Israeli attack,” the source added.

Israeli Prime Minister Benjamin Netanyahu’s office said on Thursday that his actions had previously thwarted Iran's ability to build a bomb, appearing to respond to a New York Times report that President Trump had halted Israeli plans to attack Iran.

"Netanyahu has led countless secret and open actions in the campaign against Iran's nuclear program that only thanks to them Iran does not have a nuclear arsenal today," the statement said.

Rafael Grossi, the director general of the International Atomic Energy Agency (IAEA), said on Wednesday Iran was "not far" from possessing an atomic bomb.

"It's like a puzzle: they have the pieces and maybe one day they could put them back together. There's still a long way to go before we get there. But they're not far away, we have to admit that," he said in an interview with Le Monde.

"It's not enough to tell the international community 'we don't have nuclear weapons' for them to believe it. We have to be able to verify it," Grossi said.

In its latest report in March, the IAEA warned that over the past three months, Iran had significantly expanded its reserves of highly enriched uranium, and if this trend continues, its stockpile could theoretically be enough to produce six nuclear bombs.

Norman Roule, a veteran of the Central Intelligence Agency for over 30 years who once oversaw its Iran desk, said Tehran's veteran negotiators could drag out the talks to their advantage while enriching uranium toward levels needed to build a bomb.

“Every day talks drag on, Iran moves closer to the threshold,” he said. “And if it calculates that it gains more from staying on the edge of weaponization than actually building a bomb, it will continue to play this game.”

Tehran has proven adept, Roule said, at “negotiating the negotiation”, or what he described as using drawn-out diplomacy to defuse military threats and reduce sanctions while continuing nuclear development.

As the United States prepares to resume nuclear talks with Iran this weekend, Iran’s leadership would appear to be on the backfoot amid uncertainty over its political succession, economic malaise, regional setbacks and rising international suspicion of its nuclear ambitions.

Iran has historically used negotiations as a pressure valve, Roule said, entering talks only when the threat of military confrontation peaks, with previous talks in 2003, 2012, and 2015 coinciding with an escalated US military presence or regional turmoil.

But this time is different, he argued.

“This regime is weaker, more isolated, and increasingly unpopular. If Iran keeps using its nuclear program as a shield to avoid pressure on its oppression, terrorism, and hostage-taking, the international community must call its bluff.”

According to Roule, the Trump administration is entering the talks with a clear objective: a permanent end to Iran’s capacity to build a nuclear weapon, without repeating the perceived flaws of the 2015 Joint Comprehensive Plan of Action (JCPOA).

“The 2015 agreement placed temporary and reversible limits on Iran’s nuclear program but gave Tehran permanent sanctions relief,” Roule said. “The result was that Iran used that economic relief to finance terrorism and militias across the region.”

Now, Washington may seek to allow Iran a more limited civilian nuclear capability while barring any path to weaponization and denying access to funds that could revitalize Iran’s destabilizing regional network.

Historic Strain

The talks with Trump are proceeding as Tehran is at is weakest strategic moment since emerging from the punishing Iran-Iraq War in 1988, Roule argued.

Politically, the sudden death of President Ebrahim Raisi in a 2024 helicopter crash removed the only viable successor to Supreme Leader Ayatollah Khamenei who shared the veteran leader's ideological alignment and political credentials.

Presidential elections last year saw historically low turnout, signaling popular resignation, and the recent ouster of the Vice President and the Finance Minister pointed to factional infighting.

On the economic front, inflation and the proportion of Iranians living below the poverty line both stand at around 30% while blackouts routinely plunge residents and businesses into the dark.

“This is an economic catastrophe,” he said. “Iran's people are paying the price for decades of mismanagement and isolation.”

Militarily, an Oct. 26 Israeli attack likely knocked out much of Iran's air defenses, capping months of harsh Israeli blows on Tehran's allies Hamas and Hezbollah.

“The ring of fire Iran built around Israel is now broken,” Roule said. “The Quds Force remains, but it is bruised and scattered,” he added, referring to the elite paramilitary force that oversees Tehran's foreign operations.

Moment of reckoning

While Roule emphasized his support for a diplomatic solution, he acknowledged that Israel in particular is closely studying plans for a potential attack

“If Israel delivers a significant strike, it won’t eliminate Iran’s nuclear capability permanently,” he said, “but it could raise the costs so high that Tehran would hesitate to rebuild.”

Still, there was some possibility that Tehran could choose a fundamentally different posture toward the United States.

“This could be the moment the Supreme Leader chooses normalization over confrontation,” Roule said. “The Iranian people — brilliant, resilient — deserve a future that isn’t shaped by threats, militias and sanctions.”

Under Trump’s leadership, White House special envoy Steve Witkoff “is working to resolve our differences with Iran through dialogue and diplomacy, if that is possible,” a State Department spokesperson told Iran International.

"This diplomacy is being led by Ambassador Witkoff, who is coordinating with Secretary Rubio," the spokesperson said.

"Secretary Rubio has repeatedly echoed what President Trump has said: Iran cannot have a nuclear weapon," the spokesperson added.

Iran’s decision to declare Muscat as the venue for the second round of talks came after Italy rejected Tehran’s request to hold the talks at the Omani embassy in Rome, two informed sources told Iran International.

The Italian side wanted the talks to take place under the auspices of the Italian government in Rome, the sources said, adding that discussions among the four sides are ongoing.

"Today, I’m very concerned about the possibility of amputation of fingers that may be implemented to three men who have been convicted of theft,” said Mai Sato.

"Corporal punishment, including amputation, is absolutely prohibited under international law. And if executed, will amount to torture or ill-treatment," she said.

Earlier, rights group Amnesty International said the three men — Hadi Rostami, Mehdi Sharfian, and Mehdi Shahivand — held in Urumieh Central Prison in northwestern Iran, were informed by prosecution authorities last month that their sentences would be implemented as early as 11 April.

Amnesty said the same prison carried out amputations on two brothers last October using a guillotine device, raising alarm that authorities are prepared to enforce further amputation sentences.

Despite violating Article 7 of the International Covenant on Civil and Political Rights (ICCPR), to which Iran is a party, Amnesty said the court had sentenced the three men to “have four fingers on their right hands completely cut off so only the palm of their hands and thumbs are left”.

Sato urged the Iranian authorities to halt the amputation sentence on the men.

Amnesty said the three men have consistently maintained their innocence and said that their confessions were forced under torture, including beatings, flogging and suspension by their limbs.

At least 223 amputations have been carried out by Iranian authorities out of 384 known sentences since 1979, according to the US-based rights group the Abdorrahman Boroumand Center.