PJSC Polyus provides an update on Mineral Resources estimate for Sukhoi Log and reports a maiden Indicated Mineral Resource estimate completed by AMC Consultants Pty Ltd. ("AMC") in compliance with JORC Code 2012. The estimated Mineral Resources at Sukhoi Log stand at 962 mt, with an average grade of 2.1 g/t Au and containing 63 moz of gold as at 30 October 2018. The estimate is a 9% increase compared to the previous estimate of 58 moz of gold as at 31 January 2017. The 2018 Mineral Resource estimate is based on data from the verification drilling programme available at 14 September 2018 used in conjunction with historic drillhole data. The Company continues in-fill, deep levels, flanks and other drilling. The drilling campaign will continue until the end of 2019. Polyus plans to drill a total of 197,000 meters, including the approximately 135,000 meters drilled since October 2017. Ongoing assessment of the drilling campaign samples may result in further upgrade of the Mineral Resources estimate classification.