NioCorp's Share Price has Risen 183.3% in the Three Years Ending June 2021

NioCorp  or the ("Company") (TSX: NB; OTCQX: NIOBF) is pleased to announce that it has been named to the TSX30, a list of the top performing stocks on the Toronto Stock Exchange ("TSX") that represent sustained excellence over the long term.

The TSX30 ranks stocks based on dividend-adjusted share price appreciation over a three-year period.  In the three years ended June 2021, NioCorp was one of the top performers on the Exchange and saw its share price rise by 183.3%.

"We are pleased and honored to have received this recognition from the TSX, which reflects the strong performance of NioCorp's share price over the past three years and the hard work of the NioCorp team," said Mark A. Smith, NioCorp's CEO and Executive Chairman.  "Building shareholder value over the long-term is something that we focus on daily as we work toward moving NioCorp's flagship Elk Creek Critical Minerals Project toward construction and eventual commercial success."

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For More Information

Contact Jim Sims, VP of External Affairs, NioCorp Developments Ltd., 303-503-6203, This email address is being protected from spambots. You need JavaScript enabled to view it., https://www.niocorp.com

About the TSX30

The TSX30 is a new program that recognizes the 30 top-performing TSX stocks over a three-year period based on dividend-adjusted share price appreciation. The list of 2021 members includes both newer and established listed companies across a wide range of sectors. The full ranking, methodology, and articles and video content are available on www.tsx.com/tsx30.  

About NioCorp

NioCorp is developing a superalloy materials project in Southeast Nebraska that will produce Niobium, Scandium, and Titanium.  The Company also is evaluating the potential to produce several rare earth byproducts from the Project.  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.  Magnetic rare earths, such as Neodymium, Praseodymium, Terbium, and Dysprosium are critical to the making of Neodymium-Iron-Boron ("NdFeB") magnets, which are used across a wide variety of defense and civilian applications.

Cautionary Note Regarding Forward-Looking Statements

Certain statements contained in this news release may constitute forward-looking statements, including statements regarding the Company's expectation that it will secure project financing, launch construction of the Project, produce its planned product line, produce several rare earth byproducts, and achieve commercial success.  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.