Slide 1: Bringing Home Critical Minerals Supply Chains
B RINGING H OME C RITICAL MINERALS S UPPLY C HAINS
Slide 2: Disclaimers & Technical Disclosures: Forward-Looking Statements
Disclaimers & Technical Disclosures Forward - Looking Statements This Presentation of NioCorp Developments Ltd. (“NioCorp”) contains forward - looking statements within the meaning of the United States federal securities laws and forward - looking information within the meaning of applicable Canadia
Slide 3: Disclaimers & Technical Disclosures: Financial Information
Disclaimers & Technical Disclosures Financial Information Certain financial information and data included in this Presentation is unaudited and may not conform to Regulation S - X. T his Presentation may contain financial forecasts and projections (collectively, “prospective financial information”)
Slide 4: NioCorp: At-a-Glance
NioCorp: At - a - Glance Colorado - based company pursuing financing to start construction of a construction - permitted $ 1.14B 1 underground mine & surface processing facility for U.S. Government - designated critical minerals: niobium, titanium, scandium, and potentially magnetic rare earth oxide
Slide 5: Why We Are Unique Among Critical Minerals Projects
NASDAQ :NB Why We Are Unique Among Critical Minerals Projects 2 Highly Sought Heavy Rare Earth Products Now Constricted by China 2 3 Planned Products with High Foreign Dependence 8 Potential Robust Financial Returns 4 6 Bipartisan Political Support With Potential DoD Funding 3 1 Improved Cash Positi
Slide 6: Project Financing Plan
Project Financing Plan 6 1 Final investment decision generally references the point where stakeholders have sufficient information to make investment de cis ions. 2 NioCorp is in discussions with the DoD to potentially secure up to $10.0 million in grant funding to help the Company advance th e Elk
Slide 7: US Export-Import Bank Now Processing Debt Financing Application of ~$800M
US Export - Import Bank Now Processing Debt Financing Application of ~$ 800M 1 for NioCorp x NioCorp’s application has cleared EXIM’s first formal review (TRC - 1) x EXIM has provided a Preliminary Project Letter (the “PPL”) and preliminary indicative term sheet to NioCorp x Ongoing work in respect
Slide 8: British Export Credit Agency Issues Expression of Interest for Potential Debt Guarantee
British Export Credit Agency Issues Expression of Interest to NioCorp for Potential Debt Guarantee of up to $200 Million 1 • Any loan guarantee by UKEF is contingent upon NioCorp meeting certain conditions, including execution of an offtake agreement for one or more of NioCorp’s planned products to
Slide 9: Elk Creek Feasibility Study Economics
$2.8B Pre - Tax NPV 29.2% Pre - Tax IRR $2.35B After - Tax NPV 27.6% After - Tax IRR $403M Averaged Annual EBITDA 2 over Run of Mine 3 68% Averaged Annual EBITDA 2 Margin over Run of Mine 3 $21.9B Gross Revenue over Mine Life $10.9B After - Tax Cumulative Net Free Cash Flow 2 over Run of Mine 3 $1.1
Slide 10: Continuous Improvement: Prospective Project Advancements
Continuous Improvement: Prospective Project Advancements 1 Planned advancements and project impacts are subject to confirmation through the new Feasibility Study NioCorp is currently w or king on. The completion of the new Feasibility Study is subject to the receipt of necessary financing. 2 NioCorp
Slide 11: Critical Minerals in the Elk Creek Resource
Critical Minerals in the Elk Creek Resource 1 1 Based on the June 2022 Feasibility Study. See “Mineral Reserves and Resources” in the Disclaimers & Technical Disclosures at t he beginning of this presentation. 2 NioCorp is currently assessing the feasibility of producing Titanium Tetrachloride in ad
Slide 12: Rare Earth Oxide Offtake Agreement Work
• Working toward a definitive agreement for a 10 - year offtake contract for high - purity, separated rare earth oxides: NdPr, Dysprosium, and Te rbium. 1,2,3 1 NioCorp is currently conducting technical and economic analyses on the potential addition of magnetic rare earth oxides to its p lanned pro
Slide 13: Offtake Agreements for Potential Products
Offtake Agreements for Potential Products ThyssenKrupp Metallurgical Products 2 CMC Cometals 3 50% of NioCorp’s planned ferroniobium production for first 10 yrs. 1 Pricing set at 3.75% discount to Argus Metals index pricing for ferroniobium 25% of NioCorp’s planned ferroniobium production for first
Slide 14: Management Team
Management Team Scott Honan, MSc, SME - RM Mr. Honan joined NioCorp in 2014. He has 30+ years of experience in the niobium, base metals, gold and rare earth industries. He served as General Manager and Environmental Manager and Vice President Health, Environment, Safety and Sustainability at Molycor
Slide 15: Fully Diluted Common Shares Outstanding
Fully Diluted Common Shares 15 NASDAQ :NB Outstanding Exercisable Warrants (as at May 8, 2025) Expiry Date Exercise Price Number 1 September 1, 2025 $4.60 250,000 December 22, 2025 3.54 413,432 June 24, 2026 2.20 315,000 November 5, 2026 1.75 1,117,090 November 13, 2026 1.75 2,055,908 April 12, 2027
Slide 16: Contact
CONTACT For More Information NioCorp Jim Sims Chief Communications Officer jim.sims@niocorp.com +1 (720) 334 - 7066 16