FILE PHOTO: President and Chairman of the Board of MMC Norilsk Nickel Vladimir Potanin attends a session of the St. Petersburg International Economic Forum (SPIEF), Russia June 6, 2019. REUTERS/Maxim Shemetov
FILE PHOTO: President and Chairman of the Board of MMC Norilsk Nickel Vladimir Potanin attends a session of the St. Petersburg International Economic Forum (SPIEF), Russia June 6, 2019. REUTERS/Maxim Shemetov