Further Growth Opportunities

Second POX line New POX for high-carbon pregrobbing concentrates* Amursk POX Hub Full scale of refractory ores. processing POX 1 Low-carbon concentrates POX 2 High-carbon pregrobbing concentrates Albazino, Mayskoye (underground), Kyzyl* (partially), 3rd parties Kyzyl, Mayskoye (open- pit), Nezhda, 3rd parties US$400M order-of- magnitude CapEx estimate for the second POX line *after completion of the ongoing debottlenecking project in Q3 2018 ▲ POLYMETAL INTERNATIONAL PLC | 27

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