NioCorp Developments Ltd.
TSX : NB
OTCQX : NIOBF
FRANKFURT : BR3

NioCorp Developments Ltd.

March 30, 2015 09:00 ET

NioCorp Corporate Update

VANCOUVER, BRITISH COLUMBIA--(Marketwired - March 30, 2015) - NioCorp Developments Ltd. ("NioCorp" or the "Company") (TSX:NB)(OTCQX:NIOBF)(FRANKFURT:BR3) wishes to provide an update concerning the delivery of a Preliminary Economic Assessment ("PEA") report.

As reported in an interview conducted on March 11, 2015, it was stated that a PEA report was scheduled for release during the week of March 16th. However, due to the recent additions of Scandium and Titanium to the NI 43-101 resource report, potential changes to parameters regarding estimated mining volumes geared toward maximizing mining efficiency and processes resulting from recent metallurgical testing improvements, as well as the recent initiation of additional hydrologic testing at the site to better refine parameters around water management requirements when the mine is developed, the Company has decided to delay the report until these matters can be more fully addressed in the PEA report.

The Company's CEO, Mark A. Smith stated, "Certain aspects of our plans for the development of the Elk Creek mine are necessarily dynamic at this point due to the rapid pace at which additional information about the resource and mining conditions at the site are being developed. It is our desire to insure that our shareholders and the investing public receive the most current and reliable information we can provide, so we have decided to delay the PEA until it can be better refined to more fully reflect recent and developing information." It is now anticipated the PEA report will be released in the next 2 - 3 weeks.

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 TSX nor its Regulation Services Provider (as that term is defined in the policies of the TSX) 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.

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