Investor Presentaiton

POLYMETAL INTERNATIONAL PLC POX-2 Feasibility study highlights INVESTOR PRESENTATION 34 A total of 4.3 Mt of concentrate containing 9.3 Moz of gold to be processed from Kyzyl, Nezhda, Mayskoye, and Voro over a period of 23 years Initial capex of $431m fully funded with the Group's operating cash flow 4.5 years construction period First production in Q3 2023 Full ramp-up by end of Q4 2023 Generation of a post-tax IRR of 14% and NPV of $112m Starting from 2024: +$80-100m to FCF ($0.2 per share) +$100-110m to EBITDA Long-term benefits (in-house vs offtake): Processing costs benefits: $230-290/t of conc Transportation cost benefits: $30-60/t of conc 5-6% improvement in gold recovery from concentrate: + 30-35 Koz of gold per annum

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