# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001539497-25-002331
Filing Date
2025-09-11
Accepted
2025-09-11 16:04:03
Documents
144
Period of Report
2025-06-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | n2574_x280-10k.htm iXBRL | 10-K | 2280675
2 | DESCRIPTION OF SECURITIES | n2574_x280ex4-37.htm | EX-4.37 | 43235
3 | WOLTEMATH 003J SECOND EXTENSION TO OPTION TO PURCHASE, DATED DECEMBER 9, 2024 | n2574_x280ex10-11.htm | EX-10.11 | 33669
4 | SUBSIDIARIES OF NIOCORP DEVELOPMENTS LTD. | n2574_x280ex21-1.htm | EX-21.1 | 5486
5 | CONSENT OF DELOITTE & TOUCHE LLP | n2574_x280ex23-1.htm | EX-23.1 | 2993
6 | CONSENT OF DAHROUGE GEOLOGICAL CONSULTING USA LTD. | n2574_x280ex23-3.htm | EX-23.3 | 8611
7 | CONSENT OF UNDERSTOOD MINERAL RESOURCES LTD. | n2574_x280ex23-4.htm | EX-23.4 | 4952
8 | CONSENT OF OPTIMIZE GROUP INC. | n2574_x280ex23-5.htm | EX-23.5 | 5000
9 | CONSENT OF TETRA TECH | n2574_x280ex23-6.htm | EX-23.6 | 5059
10 | CONSENT OF ADRIAN BROWN CONSULTANTS INC. | n2574_x280ex23-7.htm | EX-23.7 | 8067
11 | CONSENT OF MAGEMI MINING INC. | n2574_x280ex23-8.htm | EX-23.8 | 8222
12 | CONSENT OF L3 PROCESS DEVELOPMENT | n2574_x280ex23-9.htm | EX-23.9 | 8391
13 | CONSENT OF OLSSON | n2574_x280ex23-10.htm | EX-23.10 | 6751
14 | CONSENT OF A2GC | n2574_x280ex23-11.htm | EX-23.11 | 7655
15 | CONSENT OF METALLURGY CONCEPT SOLUTIONS | n2574_x280ex23-12.htm | EX-23.12 | 7227
16 | CONSENT OF SCOTT HONAN, M.SC., SME-RM, NIOCORP | n2574_x280ex23-13.htm | EX-23.13 | 4994
17 | CONSENT OF DUMAS CONTRACTING LTD. | n2574_x280ex23-14.htm | EX-23.14 | 7018
18 | CONSENT OF MAHMOOD KHWAJA, P.E., CDM SMITH | n2574_x280ex23-15.htm | EX-23.15 | 7436
19 | CONSENT OF WYNAND MARX, M.ENG., BBE CONSULTING | n2574_x280ex23-16.htm | EX-23.16 | 6723
20 | CERTIFICATION | n2574_x280ex31-1.htm | EX-31.1 | 7717
21 | CERTIFICATION | n2574_x280ex31-2.htm | EX-31.2 | 9077
22 | CERTIFICATION | n2574_x280ex32-1.htm | EX-32.1 | 3813
23 | CERTIFICATION | n2574_x280ex32-2.htm | EX-32.2 | 4335
29 | GRAPHIC | n257410kimg001.jpg | GRAPHIC | 12409
30 | GRAPHIC | n257410kimg002.jpg | GRAPHIC | 129049
31 | GRAPHIC | n257410kimg003.jpg | GRAPHIC | 233400
32 | GRAPHIC | n257410kimg004.jpg | GRAPHIC | 31256
33 | GRAPHIC | n257410kimg005.jpg | GRAPHIC | 62602
34 | GRAPHIC | n2574ex1011img001.jpg | GRAPHIC | 26914
35 | GRAPHIC | n2574ex1011img002.jpg | GRAPHIC | 26896
36 | GRAPHIC | n2574ex2303img001.jpg | GRAPHIC | 8971
37 | GRAPHIC | n2574ex2304img001.jpg | GRAPHIC | 7596
38 | GRAPHIC | n2574ex2305img001.jpg | GRAPHIC | 5862
39 | GRAPHIC | n2574ex2306img001.jpg | GRAPHIC | 3608
40 | GRAPHIC | n2574ex2307img001.jpg | GRAPHIC | 5011
41 | GRAPHIC | n2574ex2308img001.jpg | GRAPHIC | 5052
42 | GRAPHIC | n2574ex2309img001.jpg | GRAPHIC | 7580
43 | GRAPHIC | n2574ex2310img001.jpg | GRAPHIC | 3883
44 | GRAPHIC | n2574ex2311img001.jpg | GRAPHIC | 5185
45 | GRAPHIC | n2574ex2312img001.jpg | GRAPHIC | 5918
46 | GRAPHIC | n2574ex2313img001.jpg | GRAPHIC | 6040
47 | GRAPHIC | n2574ex2314img001a.jpg | GRAPHIC | 5995
48 | GRAPHIC | n2574ex2315img001.jpg | GRAPHIC | 1698
49 | GRAPHIC | n2574ex2316img001.jpg | GRAPHIC | 3440
| Complete submission text file | 0001539497-25-002331.txt |  | 10760089

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
24 | XBRL SCHEMA FILE | niobf-20250630.xsd | EX-101.SCH | 82329
25 | XBRL CALCULATION FILE | niobf-20250630_cal.xml | EX-101.CAL | 69429
26 | XBRL DEFINITION FILE | niobf-20250630_def.xml | EX-101.DEF | 282805
27 | XBRL LABEL FILE | niobf-20250630_lab.xml | EX-101.LAB | 576874
28 | XBRL PRESENTATION FILE | niobf-20250630_pre.xml | EX-101.PRE | 451369
147 | EXTRACTED XBRL INSTANCE DOCUMENT | n2574_x280-10k_htm.xml | XML | 1239513

Mailing Address 7000 S. YOSEMITE STREET STE. 115 CENTENNIAL CO 80112
Business Address 7000 S. YOSEMITE STREET STE. 115 CENTENNIAL CO 80112 720-639-4647
NIOCORP DEVELOPMENTS LTD (Filer) CIK: 0001512228 (see all company filings)

EIN.: 000000000 | State of Incorp.: A1 | Fiscal Year End: 0630
Type: 10-K | Act: 34 | File No.: 001-41655 | Film No.: 251308528
SIC: 1000 Metal Mining
(CF Office: 01 Energy & Transportation)