The head of state will focus primarily on economic issues and challenges, both within Russia and globally ST. PETERSBURG, June 5. /TASS/. Russian President Vladimir Putin is participating in the main event of the St. Petersburg International Economic Forum (SPIEF) – the plenary session. In his address, the head of state will focus primarily on economic issues and challenges, both within Russia and globally, as announced earlier by Kremlin Spokesman Dmitry Peskov. According to him, the president’