NioCorp Investor Presentation Deck

Low Carbon Economy Defense and Aerospace Mega- Infrastructure NioCorp Critical Mineral Security Investment Highlights Potential pure play exposure to critical mineral mega trends¹ Significant, rapidly growing total available markets Unique competitive position with large barriers to entry Key customer relationships and offtake agreements Government permits in hand for construction start Attractive valuation 1 Subject to receipt of necessary project financing and commencement of operations at the Elk Creek Project. 39

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