Since Trump took office more than a year ago, Iran has stayed within limits on items including its stock of low-enriched uranium imposed by the deal, which also lifted painful worldwide economic sanctions against the Islamic Republic.
However the White House wants European Union signatories to agree permanent restrictions on Iran's uranium enrichment.
While any party to the deal could pull out at any time, explained Reza Marashi, research director at the National Iranian American Council, doing so without just cause or without going through dispute resolution mechanisms built into the agreement, would make Iran "the party at fault rather than the aggrieved party". At low purities it can be used for peaceful applications such as power generation - Iran's stated aim.
"Iran is, in addition, a pivotal actor in the wider Middle East".
By United States Department of State [Public domain or No restrictions], via Wikimedia CommonsIran's threat to leave the JCPOA comes a little more than a month after President Trump announced on January 12 the USA would leave the nuclear deal unless the "deal's disastrous flaws" were fixed.
It removed and rendered inoperable the core of the Arak reactor, which could in theory have produced weapons-grade plutonium, before the accord entered into force.
The report further noted that Iran has continued to inform IAEA of reserves of heavy water and allowed it to monitor the reserves. Iran has claimed that this is because the banks have expressed trepidation over accidentally violating the United States sanctions that are still in place.
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US President Donald Trump speaks about the Iran deal from the Diplomatic Reception room of the White House in Washington, DC, on October 13, 2017.
Trump has also expressed concerns that some terms of the deal, signed under his predecessor, will expire in 2026.
What is the Iran Nuclear Deal? .
While Iran has reaped massive economic benefits from the accord, notably by being able to resume oil exports, it is still constrained by U.S. sanctions in other areas.
Following the deal, Iran has gradually opened its country to foreign investment and welcomed more foreign visitors, injecting billions of dollars into its ailing economy.
According to the New York Post, the Islamic Republic's Deputy Foreign Minister announced the possibility during an global conference in London, saying the UK, China, France, Germany, Russia, and the United States' sanctions against Iran have caused big banks to stay away from major business deals.
But will Iran pull the trigger and leave the JCPOA?
The IAEA, which is tasked with monitoring Iran's nuclear activities, has repeatedly verified Tehran's full commitment to its side of the bargain.