May 10 (Reuters) - NioCorp Developments Ltd NB.TO :
* NIOCORP DEVELOPMENTS LTD FILES PROSPECTUS RELATES RESALE OR OTHER DISPOSITION BY CERTAIN SELLING SHAREHOLDERS OF UP TO 31.7 MILLION CO'S COMMON SHARES
May 10 (Reuters) - NioCorp Developments Ltd NB.TO :
* NIOCORP DEVELOPMENTS LTD FILES PROSPECTUS RELATES RESALE OR OTHER DISPOSITION BY CERTAIN SELLING SHAREHOLDERS OF UP TO 31.7 MILLION CO'S COMMON SHARES