Iranian Supreme Leader Mojtaba Khamenei has ordered a total ban on shipping enriched uranium out of the country, effectively stalling peace negotiations with the United States. This directive, revealed on May 21, 2026, directly contradicts a primary U.S. demand for the removal of nuclear materials to end the ongoing conflict.
The Uranium Deadlock: Khamenei’s Security Gamble
The current diplomatic impasse hinges on a singular, non-negotiable point: the physical location of Iran’s nuclear stockpile. According to reporting from Kompas, the Supreme Leader has established a hardline consensus within the Iranian leadership that enriched uranium is a sovereign security asset that cannot be exported.
Teheran’s logic is rooted in survival. High-ranking officials believe that stripping the country of its nuclear materials would leave Iran strategically hollowed out and far more vulnerable to future military interventions by the U.S. and Israel. In their view, the uranium is not just a bargaining chip, but a deterrent.
This stance puts the White House in a bind. President Donald Trump has insisted that the removal of uranium be a mandatory clause in any peace agreement. Without this concession, the U.S. views any deal as a temporary pause rather than a permanent solution.
Measuring the Arsenal: 11 Bombs and 10 Tons of Material
The stakes are quantified by staggering numbers. While Iran denies any intent to build a weapon, the technical capability is nearly there. Data from the IAEA indicates that Iran possesses more than 400 kg of uranium enriched to 60%. Some reports from Republika specify this figure at 440 kg as of June 2025, shortly after U.S. and Israeli strikes hit nuclear facilities.
To understand the gravity, one must look at the total volume of material. The Wall Street Journal reports that Teheran holds roughly 10 tons of enriched uranium material. This stockpile is estimated to be sufficient to produce nearly 11 nuclear weapons.
| Metric | Verified Quantity/Level | Source/Context |
|---|---|---|
| Highly Enriched Uranium (60%) | 400–440 kg | IAEA / Republika |
| Total Enriched Material | ~10 Tons | Wall Street Journal |
| Estimated Weapon Potential | ~11 Bombs | Wall Street Journal |
| Weapon-Grade Threshold | 90%+ Enrichment | General Nuclear Standard |
The gap between 60% and the 90% required for a weapon is technically narrow. This proximity is exactly why Israel remains aggressive. Prime Minister Benjamin Netanyahu has signaled that he is prepared to continue the war until the uranium is removed, Iran’s proxy militias are dismantled, and its ballistic missile capabilities are erased.
The NPT Shield and the 20-Year Demand
Iran is fighting this battle not just with material, but with international law. The Ministry of Foreign Affairs is leaning heavily on the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), which guarantees the right of member states to develop nuclear technology for peaceful purposes, such as energy production.
“Currently we are focused on ending the war.
Esmail Baghaei, Iranian Foreign Ministry Spokesperson, via ANTARAThis legal defense clashes directly with the Trump administration’s specific demands. The U.S. President has stated he would be satisfied if Iran suspended all uranium enrichment for a period of 20 years, provided Washington receives “real guarantees” of compliance.
For Teheran, a 20-year suspension is not a compromise; it is a surrender of strategic autonomy. Baghaei has clarified that the Iranian government has not yet discussed the specific details of the nuclear issue in recent talks, as their primary focus remains the cessation of active hostilities.
The Russian Alternative and the ‘Symbolic’ Proposal
Amid the U.S.-Iran deadlock, Moscow has attempted to position itself as the only trusted broker. President Vladimir Putin has offered to facilitate the removal of Iran’s highly enriched uranium, citing the 2015 agreement as a precedent for Russian reliability.
“We are not only offering that; we have already implemented it once before, in 2015.
Vladimir Putin, President of RussiaDespite this offer, the path to a deal remains blocked by Washington. An unnamed U.S. official, cited by Axios, dismissed Iran’s most recent proposal as “inadequate,” claiming the changes made to the terms were merely symbolic. This suggests that regardless of who facilitates the transport—Russia or another entity—the U.S. will not accept any arrangement that leaves the door open for Iran to resume enrichment in the near future.
A Fragile Ceasefire Under Shadow
The broader conflict, which erupted on February 28 following U.S. and Israeli strikes, currently exists in a state of precarious suspension. While Pakistan has attempted to mediate a peace deal, the environment is poisoned by deep systemic distrust.
The geopolitical friction is compounded by a reciprocal blockade: the U.S. has shut down Iranian ports in retaliation for Iran’s blockade of the Strait of Hormuz. This economic strangulation has left Teheran paranoid, with internal sources suggesting the current ceasefire is a Washington ruse designed to lull Iran into a false sense of security before a new wave of airstrikes.
This suspicion was echoed by Iranian negotiator Mohammad Baqer Qalibaf, who warned of “clear and hidden movements of the enemy,” suggesting that the U.S. is actively preparing for further military escalation.
With the Supreme Leader’s ban on uranium export now firmly in place, the window for a diplomatic breakthrough is closing. The conflict has shifted from a war of attrition to a war of willpower over a few hundred kilograms of enriched material. If neither side blinks, the “fragile ceasefire” may soon collapse into a full-scale regional conflagration.