Tehran has officially denied reports that it has agreed to transfer part of its stockpile of enriched uranium to a third country (Russia), considering that these allegations are "completely unfounded and do not reflect the truth."
This decisive stance came a few hours after Russian President Vladimir Putin renewed his country's public offer to receive and store Iran's highly enriched uranium as a compromise to end the crisis between Tehran and Washington.
Fars news agency quoted an Iranian source close to the negotiating team as confirming that the news alleging that Iran agreed during talks with the United States to transfer part of its enriched uranium to a third country "does not reflect the truth."
He pointed out that the issue of uranium transfer is not on the agenda of negotiations, and explained that issues related to the nuclear file have not yet been discussed at the current stage, and that they will be discussed in later stages of negotiations.
Putin Offers Nuclear Mediation
On Thursday, Russian President Vladimir Putin said his country was ready to provide support and assistance to reach a settlement on the Iranian uranium crisis, expressing hope for reaching an agreement that is acceptable to all parties concerned.
Earlier, President Trump said that his country does not need a deal with Iran to get its enriched uranium, stressing that Washington can now access it, downplaying Tehran's ability to prevent America from doing so, saying, "I don't think they can stop us if we want to."
Trump countered his remarks, saying that "there is no need for this," justifying this by arguing that enriched uranium is "buried," referring to the bombing of his places during the past 40-day war, stressing that his country monitors Iran's nuclear sites from space.
Iranian sources: Washington has agreed to freeze discussion on uranium
Diplomatic sources confirmed that Iran's rejection of the Russian initiative is not only related to technical details, but also to a complex system of political and security calculations that govern Tehran's handling of its nuclear file.
According to Iranian sources quoted by Fars News Agency, it was agreed with the US side to freeze the discussion on sensitive nuclear issues, including the uranium stockpile, and postpone them to later stages, after previous rounds proved that early intervention would lead the negotiations to an impasse.
The sources said Tehran links the move to discussing the fate of nuclear materials to prior U.S. steps and clear actions in other files it considers essential, making any talk of a "quick nuclear settlement" out of the current political reality.
Trump refuses to repeat 2015 experiment
In this context, President Vladimir Putin's Russian offer, which is based on hosting a stockpile of highly enriched uranium inside Russia similar to the 2015 experience, came directly into conflict with higher directives inside Iran that categorically refuse to take any part of the "nuclear dust" out of the country, in addition to US President Donald Trump's rejection of the idea of transferring the stockpile to Russia or China.
The sources explained that with the fall of the transfer option, Moscow has put forward an alternative of reducing the level of enrichment inside the Iranian facilities themselves through treatment and mitigation processes, an option that requires the approval of the International Atomic Energy Agency and a political consensus between Tehran and Washington, which in turn makes it hanging on a green light that has not yet been issued.
The IEA announces the loss of traces of Iranian enriched uranium
The latest confidential report of the International Atomic Energy Agency (IAEA), distributed to member states on Thursday, June 4, 2026, revealed one of the most serious regulatory loopholes in the history of Iran's nuclear file, stressing that the agency has practically lost the "continuity of knowledge" of the status of the enriched uranium stockpile inside Iran, and that its ability to verify the field has become "almost non-existent."
According to the report, UN inspectors have not been able to enter any major nuclear facilities — such as Fordow, Isfahan and Natanz — for nearly a year, while the Bushehr research plant remained the only site the IAEA was allowed to visit.
The US and Israeli military attacks in June 2025 and February 2026 created a complex security and technical reality, which Tehran exploited to suspend weekly inspections and withhold operational data, stressing that it does not have any up-to-date information about the actual size of Iran's stockpile, its chemical composition or its storage locations after the strikes.
The last reliable data was before June 2025, when Iran had about 440 kilograms of uranium enriched to 60 percent — technically enough to produce about 10 nuclear bombs if enrichment was raised to 90 percent, it said.
The report called on Iran to immediately disclose the fate of its high and low enriched stockpiles, stressing that Tehran's obligations under the Comprehensive Safeguards Agreement and the Non-Proliferation Treaty (NPT) are legally binding and cannot be suspended or restricted under any circumstances.