A Kremlin decree published on Monday revealed that Russian President Vladimir Putin has eased an export ban on nuclear equipment and technology to Iran.
The decree, which came at the same time as Putin arrived in Iran for an official visit, says Russian companies now have the authority to export hardware and to provide financial and technical advice to assist Iran with three tasks: helping it to change two cascades at its Fordow uranium enrichment plant, supporting Iran in exporting enriched uranium in exchange for raw uranium supplies, and helping Iran update its Arak heavy water reactor.
The move comes after a landmark deal was reached between six world powers and Tehran in July, under which Iran agreed to long-term curbs on its nuclear program.
The deal ends the international embargo on Iran in exchange for at least a decade of restrictions including on the number of centrifuges used to enrich uranium and the country's enriched uranium stockpile.
Russian President Putin, who will attend a summit of gas exporting countries on Monday in Tehran, is also expected to meet Iranian President Hassan Rouhani.
The conflict in Syria will also be discussed at the summit.