Washington has ruled out any final diplomatic agreement with Iran unless Tehran agrees to transfer its entire stockpile of highly enriched uranium to the United States.

A senior US government official detailed the Trump administration’s absolute red line regarding the negotiations, The Caspian Post reports, citing Kyiv Post.

“The fundamental demand from the US side is for Iran to hand over its nuclear materials,” the official stated, referring to the estimated 900 pounds (approximately 410 kilograms) of highly enriched uranium currently held by Tehran. President Trump and other senior American officials have reportedly referred to this material as “nuclear dust.”

“I just want to make it clear that if we don’t get the dust, we will not have a deal with Iran,” the official added, warning that Washington has “many options” at its disposal should Tehran refuse to comply.

The issue of Iran’s nuclear program must be resolved within a strict 60-day negotiation window established under a bilateral memorandum of understanding (MoU) signed by the two countries in June.

The administration’s stance comes amid growing skepticism in Washington regarding Iran’s commitment to the diplomatic process. This skepticism was reinforced by newly obtained satellite imagery.

The satellite photos from multiple locations across Iran indicate that Tehran has actively begun rebuilding damaged infrastructure at key nuclear and military facilities.

Specifically, the imagery shows renewed construction and activity at the Parchin military complex near Tehran - which had been struck multiple times during recent US military campaigns - as well as at a highly secured site known as “Mount Pickaxe.”

The observed reconstruction strongly suggests that Iran began breaching the terms of the June MoU before the framework formally collapsed.

Under the agreement, which was intended to transition a temporary ceasefire into a lasting peace, Iran committed to halting any efforts to acquire or develop nuclear weapons. However, the timeline of the satellite photos suggests that reconstruction efforts were already underway before US President Donald Trump declared the ceasefire “over” and resumed retaliatory airstrikes.

The Hormuz Ultimatum

The Trump administration has placed a Saturday deadline on Tehran to issue a statement committing to halt all attacks on commercial vessels in the strategic waterway.

The deadline is timed to coincide with high-level talks in Muscat on Saturday between Iranian Foreign Minister Abbas Araghchi and Omani Foreign Minister Badr al-Busaidi.

“We want them to state publicly that they will stop shooting at ships and to explicitly, or at least implicitly, acknowledge that they messed up,” a US official remarked earlier. “We expect the Iranians to say... that all channels in the strait will be open and that passage through them will be free.”

Washington has threatened “severe consequences” if Iran fails to deliver this public assurance. While moderate Iranian diplomats have expressed a desire to defuse the maritime conflict, hardline factions within the Islamic Revolutionary Guard Corps (IRGC) continue to insist that Tehran must retain control over shipping in the Strait.

Israel recently shared intelligence with the US detailing a specific, new Iranian plot to assassinate Trump. While US intelligence agencies have not independently verified the specific threat, the report has further hardened the administration’s resolve to demand total concessions from Tehran.