British Export Credit Agency Issues Expression of Interest to NioCorp for Potential Debt Guarantee of up to $200 Million for the Elk Creek Critical Minerals Project

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Any Debt Guarantee Issued by UK Export Finance ("UKEF") Would be Coordinated with Prospective Debt Financing Now Under Consideration by the Export-Import Bank of the United States ("EXIM") and Any Prospective Export Credit Agency Loan Guarantee from the German Government

CENTENNIAL, CO / ACCESS Newswire / May 16, 2025 / NioCorp Developments Ltd. ("NioCorp" or the "Company") (NASDAQ:NB) is pleased to announce that it has received a preliminary, non-binding Expression of Interest (the "EOI") from UKEF, for a potential debt guarantee of up to $200 million to help finance construction of NioCorp's proposed Elk Creek Critical Minerals Project (the "Elk CreekProject").

While only an EOI, any eventual loan guarantee from UKEF to NioCorp would be contingent upon NioCorp meeting certain conditions, including among other matters execution of an offtake agreement for one or more of NioCorp's planned products to UK-based companies that in turn can be shown to support UK exports. NioCorp is engaged in discussions with UK-based exporters on the potential sale of scandium-based products from the Elk Creek Project.

Any debt guarantee issued by UKEF would be coordinated with prospective debt financing from EXIM, and any prospective loan guarantee from the German Government's Untied Loan Guarantee Loan Program, for which NioCorp has previously been deemed eligible to receive. UKEF's engagement with the Elk Creek Project is at an early stage. The LOI is not a legally binding commitment and is subject to a series of standard project finance terms and due diligence as per UKEF policies.

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FOR MORE INFORMATION:

Jim Sims, Corporate Communications Officer, NioCorp Developments Ltd., (720) 334-7066, jim.sims@niocorp.com

@NioCorp $NB #Niobium #Scandium #rareearth #neodymium #dysprosium #terbium #ElkCreek #China #exportban #Pentagon

ABOUT NIOCORP

NioCorp is developing the Elk Creek Project that is expected to produce niobium, scandium, and titanium. The Company also is evaluating the potential to produce several rare earths from the Elk Creek Project. Niobium is used to produce specialty alloys as well as High Strength, Low Alloy steel, which is a lighter, stronger steel used in automotive, structural, and pipeline applications. Scandium is a specialty metal that can be combined with Aluminum to make alloys with increased strength and improved corrosion resistance. Scandium is also a critical component of advanced solid oxide fuel cells. Titanium is used in various lightweight alloys and is a key component of pigments used in paper, paint and plastics and is also used for aerospace applications, armor, and medical implants. Magnetic rare earths, such as neodymium, praseodymium, terbium, and dysprosium are critical to the making of neodymium-iron-boron magnets, which are used across a wide variety of defense and civilian applications.