Iran and world powers have made headway in talks to save the 2015 nuclear accord, although much more work is needed, a senior European Union official said on Tuesday, with meetings to resume next week after consultations in their respective capitals.
"Progress made over the last two weeks," European External Action Service Deputy Secretary General Enrique Mora said on Twitter. "But much more hard work needed. Third expert group was created to address sequencing issues."
The talks, aimed at bringing Iran and the United States back into compliance with the nuclear deal will pick up again next week based on progress achieved so far, Russian and Chinese officials said earlier on Tuesday.
Iran and world powers have been meeting in Vienna since early April to hammer out steps that must be taken, touching on US sanctions and Tehran's breaches of the deal's limits on its uranium enrichment capacity.
"Today the Joint Commission of #JCPOA took note with satisfaction of the progress made in negotiations to restore the nuclear deal," said Mikhail Ulyanov, Russia's ambassador to the UN nuclear watchdog (IAEA), referring to the nuclear deal.
"In view of the progress made ... so far the Joint Commission of #JCPOA decided to establish the third working group to deal with possible sequencing of practical steps leading to full restoration of the Iranian nuclear deal."
US President Joe Biden's administration, which took office in January seeking to rejoin the accord, has said it is ready to remove "all sanctions that are inconsistent" with the deal, although not spelling out which measures it means.
In Washington, the State Department described the talks in positive terms but said there was a long way to go.
“We probably have more road ahead of us than we do behind us at this stage,” US State Department spokesperson Ned Price told reporters at a regular briefing.
Iran's clerical establishment has said it will not return to strict observance of the 2015 agreement unless all sanctions reimposed or added by former President Donald Trump after he abandoned the accord in 2018 are rescinded.
Iran's chief nuclear negotiator said the talks were moving forward despite difficulties but warned Tehran would halt the negotiations if faced with "unreasonable demands" or time wasting.
Iranian officials had on Monday cited the possibility of an interim deal to buy time for a lasting settlement.
Separately, the Iranian government said it had launched enrichment of uranium to 60% fissile purity in order to show its technical capacity after a sabotage attack at a nuclear plant that Tehran has blamed on Israel, which opposes dealmaking with Iran. But the escalation of enrichment is quickly reversible if Washington drops sanctions, the government said.
China's envoy to the UN nuclear watchdog, Wang Qun, told reporters after a meeting of the remaining parties to the 2015 deal that the parties had begun a drafting process and were clearer about what a final document would look like.
“We see productive work from the Joint Commission under the leadership of EU colleagues through their two processes, not only the working group process but also their proximity talks with the United States over the past few days,” he said, adding that sanctions-lifting remained the top issue to be resolved.
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