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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - Q × QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30 , 2021 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number : 000-55710 NioCorp SUPERALLOY MATERIALS NioCorp Developments Ltd. ( Exact Name of Registrant as Specified in its Charter ) British Columbia , Canada ( State or other jurisdiction of incorporation or organization ) 7000 South Yosemite Street , Suite 115 Centennial , CO ( Address of Principal Executive Offices ) Title of each class Not Applicable 98-1262185 ( I.R.S. Employer Identification No. ) Registrant's telephone number , including area code : ( 855 ) 264-6267 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) Not Applicable 80112 ( Zip code ) Name of each exchange on which registered Not Applicable 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 1934 during 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 filing requirements 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 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes ☑ No ☐