NioCorp Developments Ltd 2024年度报告

FORM10-K (Exact name of registrant as specified in its charter) Registrant’s telephone number, including area code:(720)334-7066 Securities registered pursuant to Section 12(b) of the Act: Securities registered pursuant to section 12(g) of the Act: None. Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes☐No☒ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes☐No☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filingrequirements for the past 90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 ofRegulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit suchfiles).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or anemerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growthcompany” in Rule 12b-2 of the Exchange Act. If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with anynew or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internalcontrol over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm thatprepared or issued its audit report.☐ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in thefiling reflect the correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensationreceived by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐No☒ At December 31, 2024, the aggregate market value of the registrant’s voting and non-voting common equity held by non-affiliates of the registrant was$62.9million based on the closing sale price as reported on the Nasdaq Stock Market. There were77,757,089common shares outstanding on September11, 2025. Not applicable. TABLE OF CONTENTS Table of Contents ITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA53ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIALDISCLOSURE.85ITEM 9A.CONTROLS AND PROCEDURES85ITEM 9B.OTHER INFORMATION87ITEM 9C.DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTION87PART III88ITEM 10.DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE88ITEM 11.EXECUTIVE COMPENSATION92ITEM 12.SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATEDSTOCKHOLDER MATTERS98ITEM 13.CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE102ITEM 14.PRINCIPAL ACCOUNTANT FEES AND SERVICES104PART IV105ITEM 15.EXHIBITS AND FINANCIAL STATEMENT SCHEDULES105ITEM 16.FORM 10–K SUMMARY109SIGNATURES110 Select Mining Definitions A type of intrusive or extrusive igneous rock defined by mineralogic composition consisting of greater than 50%carbonate minerals. The grade (i.e., the concentration of metal or mineral in rock) that determines the destination of the materialduring mining. For purposes of establishing “prospects of economic extraction,” the cut-off grade is the gradethat distinguishes material deemed to have no economic value (it will not be mined in underground mining or ifmined in surface mining, its destination will be the waste dump) from material deemed to have economic value(its ultimate destination during mining will be a processing facility). Other terms used in similar fashion as cut-off grade include net smelter return, pay limit, and break-even stripping ratio. A mineralized body which has been physically delineated by sufficient drilling, trenching, and/or undergroundwork, and found to contain a sufficient average grade of metal or metals to warrant further exploration and/ordevelopment expenditures. Such a deposit does not qualify as a commercially mineable ore body or as containingreserves or ore, unless final legal