Iran denied Sunday that it had agreed to surrender its enriched uranium stockpile as part of a pending ceasefire memorandum, a position already formalized by a Supreme Leader directive issued three days before the deal was set to be announced.

The draft memorandum of understanding (MOU), referred to by Al Arabiya as the “Islamabad Declaration,” would start a 60-day ceasefire extension. Under the framework, Iran would reopen the Strait of Hormuz and clear mines it deployed in the waterway. The United States would lift its naval blockade on Iranian ports and issue sanctions waivers allowing Tehran to sell oil freely.

The nuclear issue remains the deal’s primary obstacle. Reuters reported May 21 that Supreme Leader Mojtaba Khamenei had issued a directive forbidding Iran’s near-weapons-grade uranium from being transferred abroad, citing two senior Iranian sources. An Iranian source told Reuters on Sunday that nuclear matters are “not part of the current arrangement.”

A U.S. official said Iran “will agree in principle to dispose” of its enriched uranium. Iran holds 440.9 kilograms of uranium enriched to 60% purity, one technical step below weapons-grade levels, according to the International Atomic Energy Agency (IAEA).

“No dust, no dollars,” the official said. “If no highly enriched uranium is given [up], they will get no relief.”

The White House said Sunday it does not expect the agreement to be signed that day, citing Iran’s “slow and opaque” decision-making process as a source of further delay.

A senior U.S. official said, “Our understanding is that the Supreme Leader has endorsed the broad template of the deal.” They added, “Whether this becomes an agreement is still an open question.”