UPDATE 1-Russia's Polyus becomes world's largest gold miner by reserves Reuters 7 hrs ago MOSCOW, April 29 (Reuters) - Russia's largest gold producer Polyus on Thursday said that its total proved and probable ore reserves had risen by 71% to 104 million troy ounces of gold at the end of 2020 due to inclusion of reserves at its giant Sukhoi Log deposit. "Polyus is now confirmed to have the largest reserve base globally, with approximately 97% of these reserves attributable to our operating mines and our flagship greenfield project, Sukhoi Log," Polyus CEO Pavel Grachev said in a statement. Polyus was previously the world's third-largest gold miner by reserves behind Newmont and Barrick.