The order of the supreme leader, as well as the consensus in the ruling apparatus, is that enriched uranium reserves must not leave the country," a senior Iranian source said.
According to many sources, senior Iranian officials believe that bringing nuclear material abroad will make the country more vulnerable to future attacks from the US and Israel.
Grand Ayatollah Mojtaba Khamenei is the one who has a decisive voice on the most important issues of the Iranian state.
The order of Iranian Supreme Leader Mojtaba Khamenei was issued in the context that US President Donald Trump has assured Israel that Iran's high-enriched uranium reserves - materials necessary for making nuclear weapons - will be removed from Iran, and any peace agreement must include this clause, according to Israeli officials.
Israeli Prime Minister Benjamin Netanyahu also declared that he would not consider the conflict to end until enriched uranium is removed from Iran, Tehran stops supporting authorized forces, and the country's ballistic missile capabilities are eliminated.
Iranian officials have repeatedly affirmed that Tehran's top priority is to reach a permanent end to the conflict agreement, along with credible guarantees that the US and Israel will not continue to attack the country.
According to Iranian officials, only after these guarantees, will Iran be ready to enter into detailed negotiations on its nuclear program.
For a long time, Tehran has denied seeking to make nuclear bombs.
Israel is believed to possess a nuclear arsenal, but has never confirmed or denied possession of nuclear weapons.
Before the conflict, Iran signaled its willingness to transfer half of its 60% enriched uranium to foreign countries - a much higher level than civilian use needs.
However, sources noted that this stance has changed after continuous threats about the possibility of attacking Iran. Tehran declared it would respond strongly if attacked.
However, a source said that there are still "feasible formulas" to solve the problem.
There are solutions such as diluting stockpiles under the supervision of the International Atomic Energy Agency (IAEA)" - an Iranian source said.
The IAEA estimates that Iran has about 440.9kg of 60% enriched uranium when Israel and the US attack Iran's nuclear facilities in June 2025. It is not yet clear how much uranium remains.
In March this year, IAEA Director General Rafael Grossi said that the remainder of Iran's uranium stockpile is mainly stored in the tunnel system at the Isfahan nuclear facility, and his agency believes that more than 200kg is being stored here.
The IAEA also believes that part of the uranium is still at the Natanz nuclear complex, where Iran used to operate 2 uranium enrichment facilities.
Iran says a portion of high-enriched uranium is necessary for medical purposes and to serve the research reactor in Tehran, which uses a small amount of high-enriched uranium at a rate of about 20%.
