"I think that the role of financial institutions in the implementation of the agreement will be a very burning issue," the diplomat said.
"Now the process of unfreezing economic relations against Iran is going on as part of lifting of multilateral sanctions. But the US banks are not active enough and don’t work effectively on providing financial mechanisms for this process," ISNA quoted him as saying.
Voronkov also stated that the US economic sanctions against Iran "create an unfavorable climate."
"But the issue of bilateral relations is not in the competence of the joint commission," the diplomat said.
The commission’s meeting will be held in Vienna on April 25. It involves representatives of Iran's and the P5+1 group of international mediators (the five permanent members of the United Nations Security Council and Germany).
Such meetings are held on a regular basis every three months. The agenda includes issues related to the Joint Comprehensive Plan of Action.
Iran and the P5+1 group of international mediators signed a Joint Comprehensive Plan of Action (JCPOA) on Iran’s nuclear program on July 14, 2015 in Vienna.