Participants at the meeting will make preparations for the 4th summit of the heads of Caspian Sea littoral states, which will be held in Russia this fall.
The Iranian minister is also scheduled to hold talks with his Russian counterpart, Sergey Lavrov, and other participants on the sidelines of the conference.
The participants will also exchange views on key regional and international issues.
Iran, Russia, Kazakhstan, Republic of Azerbaijan and Turkmenistan are the littoral states of the Caspian Sea.
The Caspian Sea is the largest enclosed body of water by area, and is variously classed as the world's largest lake or a full-fledged sea.
The issue of the Caspian Sea’s legal regime has gained importance following the breakup of the Union of Soviet Socialist Republics (USSR) and the emergence of newly independent states.
On February 15, Iranian President Hassan Rouhani underscored the necessity of peace, security and calm for all Caspian Sea littoral countries and called for cooperation on environment protection, shipping and establishment of security as well as formulation of a legal regime for the Caspian Sea.
RA/NJF