According to the official Kremlin, the meeting is organized on the initiative of Russian President Vladimir Putin. 

President of Uzbekistan Shavkat Mirziyoyev, President of Russia Vladimir Putin, President of Azerbaijan Ilham Aliyev, Prime Minister of Armenia Nikol Pashinyan, President of Belarus Alexander Lukashenko, President of Kazakhstan Kassym-Jomart Tukayev, President of Kyrgyzstan Sadyr Japarov, President of Tajikistan Emomali Rahmon and President of Turkmenistan Gurbanguly Berdimuhamedov and the First President of Kazakhstan Nursultan Nazarbayev will attend the meeting.