“We are definitely moving forward in the Vienna negotiations to restore the JCPOA,” he wrote on his Twitter account.

He also called the meeting with US Special Envoy for Iran Robert Malley useful.

Another very useful meeting with US Special Envoy for Iran Robert Mulley.

We are definitely moving forward in the Vienna talks to restore the #JCPOA.

pic.twitter.com/gnJ0yX0KOj

— Mikhail Ulyanov (@Amb_Ulyanov) February 11, 2022

Earlier, Ulyanov said that the restoration of previously canceled exemptions from sanctions on Iran's nuclear program could slow down the state's nuclear program.

Later, Russian Foreign Minister Sergei Lavrov and Iranian Foreign Minister Hossein Amir Abdollahian discussed by phone the restoration of the nuclear deal.