At discussions to resuscitate Tehran's 2015 nuclear deal with world powers, which are now on hold, Washington agreed to lift all sanctions on Iran's oil and shipping, as well as remove certain prominent figures from a blacklist, according to Reuters.
The remarks by Hassan Rouhani's chief of staff were consistent with previous assertions by officials in Rouhani's pragmatist camp that Washington is willing to make big concessions at the talks, which have been ongoing in Vienna since April.
The talks were suspended on Sunday, two days after hardliner Ebrahim Raisi, the head of Iran's judiciary, was elected president. Raisi is on the US blacklist. Rouhani will be replaced by Raisi in August.
"All insurance, oil, and shipping restrictions placed by [former US President Donald] Trump have been lifted," presidential chief of staff Mahmoud Vaezi was cited as saying by official media.
The agreement will lift approximately 1,040 Trump-era penalties. Some sanctions against individuals and members of the supreme leader's inner circle were also agreed to be lifted."
On Sunday, US National Security Adviser Jake Sullivan said there was still "a considerable distance to walk" in terms of sanctions and Iran's nuclear commitments.
Other Western and Iranian officials have stated that the discussions are far from over.
In 2015, Iran agreed to limit its nuclear program in exchange for the easing of international sanctions. Three years later, Trump reneged on the pact and reimposed sanctions, prompting Iran to breach some nuclear limitations.
President Joe Biden's new government wants to get the deal back on track, but the two sides can't agree on which measures to take and when.
Raisi's ascendancy is unlikely to change Iran's negotiation posture, according to Iranian and Western officials alike, because Supreme Leader Ayatollah Ali Khamenei already has final authority on all significant matters.
However, some Iranian officials have stated that Tehran would prefer to reach an agreement before Raisi enters office in order to provide a clean slate for the incoming president.