New Video: NioCorp's Scott Honan Discusses the Potential of Adding Rare Earths to the Elk Creek Project's Planned Product Suite

CENTENNIAL, March 18, 2021 - NioCorp Developments Ltd. ("NioCorp" or the "Company") (TSX:NB) (OTCQX:NIOBF) is pleased to announce the availability of a new video featuring Chief Operations Officer Scott Honan discussing NioCorp's ongoing review of the economic prospect of adding rare earth-based products to the company's existing planned product suite of niobium, scandium, and titanium critical materials products, once project financing is secured and the Project is operational.

The video can be seen here: https://youtu.be/gDzLhRfjxTg

Qualified Persons: Scott Honan, M.Sc., SME-RM, COO of NioCorp Developments Ltd., a Qualified Person as defined by National Instrument 43-101, has reviewed and approved the technical information contained in the referenced video.

@NioCorp $NB $NIOBF #ElkCreek #Niobium #Scandium #ElkCreek #Nebraska #rareearth

For More Information
Contact Jim Sims, VP of External Affairs, NioCorp Developments Ltd., 720-639-4650, jim.sims@niocorp.com

About NioCorp
NioCorp is developing a superalloy materials project in Southeast Nebraska that will produce the critical minerals niobium, scandium, and titanium. Niobium is used to produce superalloys as well as High Strength, Low Alloy ("HSLA") steel, which is a lighter, stronger steel used in automotive, structural, and pipeline applications. Scandium is a superalloy material 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 superalloys and is a key component of pigments used in paper, paint and plastics and is also used for aerospace applications, armor and medical implants. NioCorp is also evaluating the rare earth potential of its Nb/Ti/Sc Resource.

Forward-Looking Statements Disclaimers
Certain statements contained in this news release and in the video referenced may constitute forward-looking statements, including statements regarding the potential of economically producing rare earth products in addition to the company's currently planned suite of products. Readers are cautioned that such forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause a change in such assumptions and the actual outcomes and estimates to be materially different from those estimated or anticipated future results, achievements or position expressed or implied by those forward-looking statements. Risks, uncertainties and other factors that could cause NioCorp's plans or prospects to change include risks related to the Company's ability to operate as a going concern; risks related to the Company's requirement of significant additional capital; changes in demand for and price of commodities (such as fuel and electricity) and currencies; changes in economic valuations of the Project, such as Net Present Value calculations, changes or disruptions in the securities markets; legislative, political or economic developments; the need to obtain permits and comply with laws and regulations and other regulatory requirements; the possibility that actual results of work may differ from projections/expectations or may not realize the perceived potential of NioCorp's projects; risks of accidents, equipment breakdowns and labor disputes or other unanticipated difficulties or interruptions; the possibility of cost overruns or unanticipated expenses in development programs; operating or technical difficulties in connection with exploration, mining or development activities; the speculative nature of mineral exploration and development, including the risks of diminishing quantities of grades of reserves and resources; and the risks involved in the exploration, development and mining business and the risks set forth in the Company's filings with Canadian securities regulators at www.sedar.com and the SEC at www.sec.gov. NioCorp disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.

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SOURCE NioCorp Developments Ltd.