Mr Putin is scheduled to hold talks in Teheran with Supreme Leader of Iran Ali Khamenei and President of Iran Hassan Rouhani.
The Gas Exporting Countries Forum summit is expected to see a detailed exchange of views on the outlook for developing the global natural gas market. The participants will discuss coordination matters in the context of maintaining a stable balance between natural gas supply and demand, taking into account the interests of gas suppliers and consumers.
Bilateral contacts with some of the foreign leaders taking part in the summit are also possible.