NioCorp Investor Presentation Deck

First Al-Sc Master Alloy Ingots Produced Successful pilot-scale production of two 1-kg Al-Sc alloy ingots recently at testing facility in Pennsylvania. Ingots contain 2% scandium by weight, which is considered industry standard. Using metallothermic reduction of scandium chloride, which involves: — NioCorp Critical Mineral Security Less environmental impacts Very high prospective yield Separates Sc reduction and alloying with Al into 2 steps NioCorp's Al-Sc Master Alloy pilot-scale testing at Creative Engineers in New Freedom, Penn. 21

View entire presentation