EX-21.1 4 n2574_x280ex21-1.htm SUBSIDIARIES OF NIOCORP DEVELOPMENTS LTD.

Exhibit 21.1

List of Subsidiaries of NioCorp Developments Ltd. (the “Company”)

Name |  | State/Province of Formation |  | Ownership
0896800 B.C. Ltd. (“0896800”) |  | British Columbia |  | 100%
Elk Creek Resources Corp. |  | Delaware |  | 80.42%(1)
NioCorp Technologies Limited |  | United Kingdom |  | 100%

(1) | Represents 100% of Class A common stock owned by 0896800, and 3,934,031 Vested Shares and 3,391,596 Earnout Shares (each as defined in the Company’s Annual Report on Form 10-K for the year ended June 30, 2025) held by third parties, and outstanding as of June 30, 2025.