Iran's head negotiator Mohammad Bagher Ghalibaf has rejected US claims that Iran's unfrozen assets will be used to buy American agricultural products, in a post on X on June 25.

His latest remarks sharpen a public dispute over how Iran's released funds will be spent, after US officials repeatedly framed sanctions relief as a route to selling American crops to Tehran, a characterisation Iran has rejected as one it never agreed to despite previous US claims. Ghalibaf, who also serves as parliament speaker, said the United States had falsely claimed the assets would buy its agriculture.

He said the only crop Iran was harvesting was decades of mistrust planted by the United States, describing it as organic, abundant and homegrown, and said Washington exported only "GMO soybeans, broken promises and trash talks."

The post followed comments by US Treasury Secretary Scott Bessent, echoing President Donald Trump, that a large share of Iran's unfrozen assets would be used to buy US food and medicine. Vice-President JD Vance had earlier said unfrozen funds would go towards American agricultural products to benefit US farmers.

Iran has maintained that it will decide its own spending. Foreign ministry spokesperson Esmaeil Baghaei has said the released assets would be employed freely by Iran to purchase whatever goods the country needed, and that any agricultural purchases would be based on price and quality rather than terms dictated by Washington.

The dispute sits within a 60-day process to implement the memorandum of understanding that ended the war, under which Ghalibaf has said agreement was reached to release $12bn in frozen Iranian funds.

Technical, expert-level talks between Iran and the United States, mediated by Pakistan and Qatar, will resume next week, Pakistan's foreign ministry said on June 25.

The timeline keeps the fragile process between Tehran and Washington on track, with the two mediators continuing to shuttle between the sides to implement the memorandum of understanding that ended the war.

The ministry spokesperson said consultations with the Iranian and US sides were continuing for the effective implementation of the agreement.

The agreement includes the creation of a direct communication line between Tehran and Washington to prevent problems from arising, the spokesperson said.