Dec 14 (Reuters) - NioCorp Developments Ltd NB.TO :
* NIOCORP CEO AND EXECUTIVE CHAIRMAN MARK SMITH EXTENDS MATURITY DATE OF LOANS TO THE COMPANY
* NIOCORP DEVELOPMENTS LTD - TO EXTEND MATURITY DATE OF ITS EXISTING $3.5 MILLION NON-REVOLVING CREDIT FACILITY TO DECEMBER 15, 2021