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)(OTCQX:NIOBF)(FRANKFURT:BR3). 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 9^th, 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 9^th 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^® 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.