Investor Presentaiton

IMPROVING A LEGACY PLAN DESIGNED WITH POST MINING RESTORATION GOALS IN MIND, INCLUDING WILDLIFE, FISHERIES & DISPERSED RECREATION • • • • • • • Create a self-sustaining natural environment Support healthy fish and wildlife population Significant concurrent reclamation & restoration Revegetation, reforestation & wetland mitigation Address historical impacts from legacy mining 10+ year post-operations closure period 25 years of water treatment estimated Based on the 2020 Feasibility Study (FS) which is intended to be read as a whole and sections should not be read or relied upon out of context. The information in this presentation is subject to the assumptions, exclusions and qualifications contained in the FS. See "Regulatory Information" at the end of this presentation. For a summary of differences between the FS and TRS, see "Cautionary Note and Technical Disclosure" at the beginning of this presentation. See the section titled "Forward-Looking Statements" at the beginning of this presentation. 26

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