NioCorp Announces Final Approval for Graduation to TSX

VANCOUVER, BRITISH COLUMBIA--(Marketwired - March 5, 2015) - NioCorp Developments Ltd. ("NioCorp" or the "Company") (TSX VENTURE:NB)NIOBFBR. On behalf of its shareholders, NioCorp is pleased to announce that it has received final approval for the listing of the Company's common shares on the Toronto Stock Exchange (the "TSX").

NioCorp's common shares will commence trading on the TSX effective as of the open of the market on Monday, March 9th, 2015. Upon listing on the TSX, the common shares of the Company will continue to trade under the symbol "NB".

In conjunction with listing on the TSX, the Company's common shares will be delisted from the TSX Venture Exchange prior to the commencement of trading Monday, March 9th 2015.

The TSX is the premier stock exchange for resource companies and NioCorp believes that the move to the TSX will facilitate significantly more access to a broad range of international and institutional investors and capital pools. Increased exposure for the Company coincides with the rapid development of the Elk Creek project, and is in keeping with the Company's aggressive development plan. "The past year has seen tremendous progress in the Company's business, highlighted by our ranking as the #1 mining issuer in the TSX Venture 50(R) for 2014. We look forward to leveraging our new listing on the TSX as we drive the Elk Creek project forward." said Mark Smith, Executive Chairman of NioCorp.

About the Company: NioCorp is developing the only primary niobium deposit known to be under development in the U.S., and the highest grade undeveloped niobium deposit in North America, located near Elk Creek, Nebraska. The Company is announcing an NI43-101 compliant resource with an effective date of February 20, 2015 reporting an Indicated Resource of 80.5 million tonnes grading 0.71% Nb2O5, 2.68% TiO2 and 72 ppm Sc and an Inferred Resource of 99.6 million tonnes grading 0.56% Nb2O5, 2.31% TiO2 and 63 ppm Sc (at a 0.3% Nb2O5 cutoff grade). Niobium is mainly used in the form of Ferro-Niobium to produce HSLA (High Strength, Low Alloy) steel, which is a lighter, stronger steel used in automotive, structural and pipeline applications. The U.S. imports 100% of its niobium needs. Titanium in the form of an oxide is used extensively as a pigment in paints, plastics and papers. As a metal, titanium is used in aerospace applications, armor, chemical processing applications, marine hardware applications, medical implants, power generation and in sporting goods. Scandium is used in solid oxide fuel cells (SOFCs) and aluminum-scandium alloys, as well as in ceramics, electronics, lasers and lighting applications.

ON BEHALF OF THE BOARD

Peter Dickie, Director, President and Corporate Secretary

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Certain statements contained in this press release may constitute forward-looking statements. Such forward-looking statements are based upon NioCorp's reasonable expectations and business plan at the date hereof, which are subject to change depending on economic, political and competitive circumstances and contingencies. 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 changes in demand for and price of commodities (such as fuel and electricity) and currencies; 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 labour 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. 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.

FOR FURTHER INFORMATION PLEASE CONTACT:
NioCorp Developments Ltd.
(604) 568-7365
604-568-8270 (FAX)
info@niocorp.com
www.NioCorp.com