Iran threatens 'strong step' away from nuclear deal
The comments from Ali Rabiei reinforced the deadline Iran had set for Friday for Europe to offer it a way to sell its crude oil on the global market.
Crushing US sanctions imposed after President Donald Trump withdrew America from the deal over a year ago have halted those sales.
Iranian Foreign Minister Mohammad Javad Zarif was in Moscow, while his deputy was to travel to France with a team of economists on Monday in a renewed diplomatic push.
The developments come after French President Emmanuel Macron surprised the Group of Seven summit in France by inviting Zarif last week.
Rabiei described Iran's strategy to journalists at Monday's press conference in Tehran as "commitment for commitment."
"Iran's oil should be bought and its money should be accessible to return to Iran," Rabiei said. "This is the agenda of our talks."
It's unclear what the terms of negotiation are. In theory, anyone caught buying Iranian crude oil would be subject to US sanctions and potentially locked out of the American financial market.
Iran has already exceeded the stockpile and enrichment limitations placed on it by the 2015 deal. However, Tehran says those steps are quickly reversible.
The UN's nuclear watchdog, the International Atomic Energy Agency, said on Friday that just over 10 percent of Iran's uranium stockpile was now enriched up to 4.5 percent, above the 3.67 percent limit stipulated in the 2015 deal.
It also said Iran's total stockpile of uranium, which under the accord should be no more than the equivalent of 300 kilograms (661 pounds) of uranium hexafluoride, now stood at roughly 360 kilograms.
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