NioCorp Announces Convertible Note Financing

CENTENNIAL, COLORADO--(Marketwired - Sep 16, 2015) - NioCorp Developments Ltd. ("NioCorp" or the "Company") (TSX:NB)(OTCQX:NIOBF)(FRANKFURT:BR3) announces that it will conduct a non-brokered private placement of unsecured convertible promissory notes (the "Notes"), for gross proceeds of up to USD$750,000 (the "Private Placement").

The Notes will bear interest at a rate of 8%, payable annually in arrears, are non-transferable and have a term of three years from the date of issue. Principal under the Notes is convertible by lenders into, and payable by the Company in, common shares of the Company at a conversion price of CAD$0.97 per common share, calculated on conversion or repayment using the then-current Bank of Canada noon exchange rate. Accrued but unpaid interest on the Notes will be convertible by lender into, and payable by the Company in, common shares at a price per common share equal to the most recent closing price of the Company's common shares prior to the delivery to the Company of a request to convert interest, or the annual due date of interest, as applicable, calculated using the then-current Bank of Canada noon exchange rate.

All securities issued under the Private Placement will be subject to a four month hold period, and the completion of the Private Placement is subject to Toronto Stock Exchange approval. The Company expects to use the proceeds of the Private Placement for general working capital purposes.

About the Company:

NioCorp is a mineral development company pursuing high-quality natural resources. The Company's main focus is the Elk Creek Niobium Project, which is an advanced niobium exploration initiative located in southeast Nebraska. This resource is used to produce High Strength, Low Alloy ("HSLA") steel, which is a lighter, stronger steel used in automotive, structural, and pipeline applications.

Cautionary Statements:

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.

Special note about forward-looking statements:

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. Readers are advised that the Elk Creek PEA is preliminary in nature and includes Inferred Mineral Resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as Mineral Reserves. There is no certainty that the preliminary economic assessment will be realized. Mineral Resources are not Mineral Reserves because they do not have demonstrated economic viability. There is no guarantee that Inferred Mineral Resources will be converted to the Measured and Indicated Mineral Resource categories and, therefore, there is no guarantee that the project economics described herein will be achieved.

Contact

NioCorp Developments Ltd.
John Ashburn
Vice President and General Counsel
(720) 639-4650
info@NioCorp.com