NioCorp to Voluntarily Delist from the Toronto Stock Exchange as of Close of Markets on May 3, 2024

CENTENNIAL, CO / ACCESSWIRE / May 1, 2024 / NioCorp Developments Ltd. ("NioCorp" or the "Company") (Nasdaq:NB)(TSX:NB) announces that, further to its press release dated April 17, 2024 (seen here), the board of directors has approved the voluntary delisting of NioCorp's common shares from the Toronto Stock Exchange (the "TSX"). It is expected that NioCorp's common shares will be delisted from the TSX effective as of close of markets on May 3, 2024. NioCorp's common shares will continue to be listed and trade on the Nasdaq Capital Market (the "Nasdaq") under the symbol "NB".

Brokers outside the United States are encouraged to take appropriate steps to ensure that their clients may trade NioCorp shares on the Nasdaq following the TSX delisting.

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@NioCorp $NB

For More Information

Jim Sims, Chief Communications Officer, NioCorp Developments Ltd., 720-334-7066, [e-mail]

About NioCorp

NioCorp is developing a critical minerals project in Southeast Nebraska 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.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995 and forward-looking information within the meaning of applicable Canadian securities laws. Forward-looking statements may include, but are not limited to, NioCorp's expectation that the delisting of NioCorp's common shares will be approved by the TSX and the expected effective date therefor, and statements regarding the Company's expectation to produce niobium, scandium and titanium and the potential to produce rare earths at the Project. Forward-looking statements are typically identified by words such as "plan," "believe," "expect," "anticipate," "intend," "outlook," "estimate," "forecast," "project," "continue," "could," "may," "might," "possible," "potential," "predict," "should," "would" and other similar words and expressions, but the absence of these words does not mean that a statement is not forward-looking.