NioCorp Investor Presentation Deck

NioCorp's Expected Mining Operations Designed from the Start with Sustainability in Mind Fully aligned with Equator Principles, an auditable ESG framework Zero process water discharge facility Additional protection of groundwater resources through artificial ground freezing and grouting NioCorp Critical Mineral Security Local employment and support local businesses Recycling of reagents Avoidance of permanent impacts to Federally Jurisdictional Waters Utilizing tailings as underground mine backfill 8

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