Chinese chief negotiator in Vienna Wang Qun said all parties to the negotiations agree that they have reached the final stage.
He said meetings between Iran and the P4+1 group of countries including China continue bilaterally and trilaterally.
The exchange of proposals between the delegations is a component of multilateral negotiations.
Reports coming out of Vienna say in some cases, different proposals have been exchanged several times during a single day, which is said to be a sign of the dynamism of the negotiations and the seriousness of the parties to reach a final agreement.
The eighth round of talks between Iran and the P4+1- China, Russia, Britain, France and Germany- began on December 27, 2021. The parties to the talks are busy drafting the text of a final agreement and trying to resolve the remaining differences.
