Iran had made clear in ongoing talks with the United States that there is no possibility of reaching a proposed memorandum of understanding (MoU) until a specific portion of frozen assets is released in the initial phase, Iranian media reports.

Iran’s semi-official Tasnim news agency, citing a source familiar with the entire process, said Tehran has made the release of frozen assets a prerequisite in the initial phase and has also demanded a clear mechanism to guarantee it.

According to the report, the same source said the United States has been continuously obstructing the negotiation process and changing its position at different stages, while Iran has made clear that no understanding or compromise will be possible without the release of a specific portion of its frozen assets.

The source said the matter had been conveyed to other countries, including Pakistan, which are mobilising for the success of the negotiation process.

The report also claims that after initial arrangements and agreements were reached through the mediation of Pakistan and some regional countries, the United States is now obstructing the process.

Iran, despite this situation, has said it will not back down from its “red line” under any circumstances.

The report also states that after repeated breaches of promises and obstacles to the negotiation process by the United States in the past, Iran is no longer ready to limit the issue of the release of assets to written assurances or vague promises, and is instead demanding a clear and credible mechanism.

According to reports, the possible preliminary MoU under consideration between Iran and the United States may include easing oil sanctions imposed by Washington on Iran. During the negotiation process, the United States may allow Iran to sell crude oil, enabling Tehran to sell oil on the world market without current sanctions-related obstacles.

Iranian media reports say this possible concession would not be limited to crude oil but would also apply to petrochemicals and related products, allowing Iran relatively freer trade in the energy sector during the negotiation period. Senior officials from both sides have not provided details of any final agreement.

US President Donald Trump has said talks are underway between Iran and the United States on final details of an agreement, and that it would be reached between the United States, Iran and other Muslim countries.

He said he had spoken to Pakistan’s Field Marshal Syed Asim Munir and had also been in contact with the leaders of several Muslim countries on the issue of Iran, including Saudi Arabia, the United Arab Emirates, Qatar, Turkey and Egypt.

Iranian Foreign Ministry spokesman Esmail Baqai said contacts were ongoing between Tehran and Washington to finalise a possible memorandum of understanding. He said positions had come closer over the past week, but the next few days would be crucial for final results.

He added that issues such as ending what he called ongoing US naval aggression in the name of a naval blockade and restoring Iran’s frozen financial assets are important parts of the memorandum.

US Secretary of State Marco Rubio, who is on a visit to India, has also confirmed progress in the negotiation process and hinted at an important announcement in the next few hours.