Sergei Sobyanin appointed chairman of the organising committee for Russia’s G8 Presidency 2012-02-14 16:00:00 Dmitry Medvedev signed Executive Order On the Chairman of the Organising Committee for the Russian Federation’s G8 Presidency. The President appointed Moscow Mayor Sergei Sobyanin chairman of the Organising Committee for Russia’s G8 Presidency, releasing Sergei Prikhodko from these duties.