The remarks were part of the moderate Rouhani’s efforts to bring around hard-liners who claim the deal tramples on Iran’s enrichment rights.
Last week, the six-nation group — the five permanent members of the U.N. Security Council and Germany — and Iran agreed to start implementing the terms of the November deal later this month.
Under the deal, Iran agreed to cap its uranium enrichment in return for some relief from Western economic sanctions.
Speaking Tuesday in the oil-rich province of Khuzestan, Rouhani said the “Geneva deal means the surrender of big powers before the great nation of Iran.”
According to U.S. estimates, the overall sanctions relief provided to Iran under the deal is worth about $7 billion. Of this amount, $4.2 billion is in the form of access to currently blocked Iranian revenues held abroad.
“Access to a portion of these funds will be linked to Iran’s progress in completing the dilution process for 20 percent enriched uranium,” said the official, referring to Iran’s commitment to dilute half of its 20 percent enriched uranium to no more than 5 percent enriched uranium.
“Iran will not have access to the final installment of the $4.2 billion until the last day of the six-month period,” the official said.