Iran will withdraw from the landmark 2015 nuclear deal if there is no economic benefit from it and major banks continue to fail to do business with the Islamic Republic, Iranian Deputy Foreign Minister Abbas Araqchi said on Thursday.

Iran’s President Hassan Rouhani said on Saturday it would adhere to commitments under its 2015 international nuclear agreement, signed with six world powers to limit its disputed nuclear program.

The West must ensure the Iran 2015 nuclear deal succeeds before trying to negotiate other issues, a senior Iranian official said in a rare public suggestion Tehran could discuss matters such as its regional activities or missile program with world powers.

U.S. President Donald Trump said on Friday he would waive nuclear sanctions against Iran for the last time to give Washington and its European allies a chance to fix the "terrible flaws" of the 2015 nuclear deal.

The head of the United Nations atomic agency on Sunday said Iran was carrying out its commitments made under a landmark nuclear deal with world powers.

French energy firm Total’s Chief Financial Officer Patrick de La Chevardiere said on Friday that the company continues to operate in Iran despite the foggy situation after US President Donald Trump decided not to ratify the Iranian nuclear deal.

The U.N. atomic watchdog chief said on Thursday his inspectors had yet to encounter problems with Iran a week after U.S. President Donald Trump refused to certify that Tehran was complying with a 2015 nuclear deal.

European Union leaders on Thursday reaffirmed their full commitment to the 2015 nuclear deal between Iran and world powers, hoping that the U.S. Congress would not let it collapse despite relentless criticism by President Donald Trump.

Britain and France are firmly committed to a 2015 Iranian nuclear deal and will work to ensure it is enforced, British Prime Minister Theresa May’s office said on Monday after she spoke to French President Macron.

Senior Trump administration officials said on Sunday that the United States was committed to remaining part of the Iran nuclear accord for now, despite President Donald Trump’s criticisms of the deal and his warnings that he might pull out.

Germany is worried that U.S. President Donald Trump will decide this week that Iran is not respecting a two-year-old deal to curb its nuclear programme and fears such a step will worsen the security situation in the Middle East.

China said on Monday it hopes the Iran nuclear deal will stay intact, playing an important role in keeping the peace, after a senior U.S. official said President Donald Trump is expected to decertify the agreement.

U.S. Defence Secretary Jim Mattis said on Tuesday Iran was fundamentally in compliance with its nuclear deal, as President Donald Trump's administration weighs whether the 2015 deal serves U.S. security interests.

Iran may abandon the nuclear deal it reached with six major powers if the United States decides to withdraw from it, Iranian foreign minister told Qatar's al Jazeera TV in New York.

The top U.S. military officer said on Tuesday Iran was complying with the pact curbing its nuclear program and warned that any American decision to walk away from it would make other nations less likely to enter into agreements with the United States.

The ambassadors to Washington from Britain, France, Germany and the European Union all strongly backed the international nuclear agreement with Iran on Monday, as long as Tehran continues to comply with the pact.

The United Arab Emirates said on Friday it considers that Iran violates both the “letter and spirit” of the 2015 nuclear deal agreed between the Islamic Republic and world powers.

French President Emmanuel Macron said he had not yet given up on convincing U.S. President Donald Trump to change his view of the 2015 nuclear deal between Iran and world powers.

The European Union's foreign policy chief Federica Mogherini said on Wednesday that all parties to the landmark 2015 nuclear deal between Iran and world powers were complying with the agreement.

The United States said on Wednesday it is weighing whether the Iranian nuclear deal serves its security interests even as Iran said it did not expect Washington to abandon the agreement.