Iran's top arbitration body has approved a bill that could help remove Tehran from the blacklist of a global financial crime watchdog, state media reported on Wednesday, potentially advancing efforts to widen trade and investment opportunities.

The United States on Monday sanctioned three Iranians and a related technology firm on accusations of advancing Tehran's nuclear weapons research.

Nadergholi Ebrahimi has asked Supreme Leader Khamenei to rethink Iran's nuclear policy if negotiations with the U.S. collapse.

The U.S. Treasury Department on Tuesday imposed sanctions on more than 20 companies in a network that it said has long sent Iranian oil to China, days after negotiators from Iran and the United States concluded a fourth round of nuclear talks.

To squeeze the Islamic Republic’s oil revenues, it is key for U.S. policy to understand that no Chinese company is too big to sanction.

Asked whether the development could impact U.S.-Iran diplomacy, she said "there are very smart ... setting strict limits for Iranian nuclear activities in exchange for sanctions relief. The agreement was scrapped by Trump during his first administration ...

President Trump has threatened sanctions on countries purchase from Iran. “ALERT: All purchases of Iranian Oil, or Petrochemical products, must stop, NOW! Any Country or person who buys ANY ...

Araghchi stated that the imposition of new US sanctions during ongoing diplomatic talks sends ... and we did not set a time for it," he said, adding that Iran is not looking to waste time, and he feels that the other side has the same motivation.

Iran's foreign minister has issued a stark warning to Britain, France and Germany that reimposing sanctions on Tehran could lead to an "irreversible escalation" of tensions. Abbas Araqchi cautioned that abuse of the "snapback mechanism" would have serious consequences in a column published in French weekly magazine Le Point on Monday.