FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2025 NioCorp Developments Ltd. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Exact name of registrant as specified in its charter) British Columbia, Canada (State or other jurisdiction of incorporation) 001-41655 (Commission File Number) 98-1262185 (IRS Employer Identification No.) 7000 South Yosemite Street, Suite 115 Centennial ...