"The three parties will exchange views on the Iranian nuclear issue and other issues of mutual interest," a foreign ministry spokesperson said Wednesday.

The meeting will be attended by China's Vice Foreign Minister Ma Zhaoxu, Russian Deputy Foreign Minister Ryabkov Sergey Alexeevich and Iranian Deputy Foreign Minister Kazem Gharibabadi.

During US President Donald Trump's first term, which ended in 2021, Washington withdrew from the landmark deal that had imposed curbs on Iran's nuclear programme in return for sanctions relief.

Tehran adhered to the 2015 deal for a year after Washington's withdrawal, but then began rolling back its commitments.

Efforts to revive the pact have since faltered.