NioCorp Closes Business Combination with GXII and Separate Financing Deals Providing Access to Up to US$71.9 Million in Net Proceeds Over the Next Three Years

CENTENNIAL, Colo. , March 17, 2023 /PRNewswire/ — NioCorp Developments Ltd. (“NioCorp” or the “Company”) (TSX: NB; OTCQX: NIOBF) today announced the completion of its previously announced business combination (the “Business Combination”) with GX Acquisition Corp. II (“GXII”). Further,…