What changed in this filing

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Item 5. Other Information

2025-11-13 compared with 2025-05-08 · 47 added, 37 removed, 17 unchanged (83% of the section changed)

OTHER INFORMATION

Rule 10b5-1 Trading Arrangements

During the quarter ended March 31, 2025,

no director or officer (as defined in Rule 16a-1(f) promulgated under the Exchange Act) of the Company adopted or terminated a

“Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement” (as each term is defined in

Item 408 of Regulation S-K).

10b5-1 Trading Arrangements

the quarter ended September 30, 2025, no director or officer (as defined in Rule 16a-1(f) promulgated under the Exchange Act)

of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement”

(as each term is defined in Item 408 of Regulation S-K).

Notice of Articles dated April 5, 2016

1 unchanged sentence

Amendment to Articles, effective March 17, 2023

Form of January 2025 Series A Warrant

Form of January 2025 Series B Warrant

Consent and Waiver, dated as of January 3, 2025, between NioCorp Developments Ltd.

and YA II PN, Ltd.

Form of April 2025 Pre-Funded Warrant

Underwriting Agreement, dated as of January 29, 2025, by and between NioCorp Developments Ltd.

Placement Agency Agreement, dated as of September 26, 2025, by and between NioCorp Developments Ltd.

and Maxim Group LLC

Underwriting Agreement, dated as of April 17, 2025, by and between NioCorp Developments Ltd.

Form of September Pre-Funded Warrant (included in Exhibit 4.1)

Placement Agency Agreement, dated as of October 13, 2025, by and between NioCorp Developments Ltd.

and Maxim Group LLC

Form of October Pre-Funded Warrant (included in Exhibit 4.3)

Amendment to Contract, dated August 18, 2025, between the Company and 76 Resources, LLC

Defense Industrial Base Consortium Base Agreement, dated as of July 22, 2025, between Elk Creek Resources Corp.

and Advanced Technology International and Elk Creek Resources Corp.

Project Sub Agreement, dated as of August 4, 2025, by and between Elk Creek Resources Corp.

and Advanced Technology International

Certification of Chief Executive Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

4 unchanged sentences

Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Inline XBRL Instance Document

Inline XBRL Taxonomy Extension- Schema

Inline XBRL Taxonomy Extension – Calculations

Inline XBRL Taxonomy Extension – Definitions

Inline XBRL Taxonomy Extension – Labels

Inline XBRL Taxonomy Extension – Presentations

Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

Management compensation plan, arrangement, or agreement.

Previously filed as an exhibit to the Company’s Draft Registration Statement on Form S-1 (Registration No.

377-01354) submitted to the SEC on July 26, 2016, and incorporated herein by reference.

Previously filed as an exhibit to the Company’s Current Report on Form 8-K (File No.

001-41655) filed with the SEC on March 17, 2023, and incorporated herein by reference.

Previously filed as an exhibit to the Company’s Current Report on Form 8-K (File No.

001-41655) filed with the SEC on January 31, 2025, and incorporated herein by reference.

Previously filed as an exhibit to the Company’s Quarterly Report on Form 10-Q (File No.

001-41655) filed with the SEC on February 7, 2025, and incorporated herein by reference.

Previously filed as an exhibit to the Company’s Current Report on Form 8-K (File No.

001-41655) filed with the SEC on April 21, 2025, and incorporated herein by reference.

Submitted Electronically Herewith.

Attached as Exhibit 101 to this report are the following formatted in inline XBRL (Extensible Business Reporting Language):

(i) the Interim Condensed Consolidated Balance Sheets as of March 31, 2025 and June 30, 2024, (ii) the Interim Condensed Consolidated Statements of Operations and Comprehensive Loss for the Three and Nine Months ended March 31, 2025 and 2024, (iii) the Interim Condensed Consolidated Statements of Cash Flows for the Nine Months ended March 31, 2025 and 2024, (iv) the Interim Condensed Consolidated Statements of Shareholders’ Equity (Deficit) and Redeemable Noncontrolling Interest for the Three and Nine Months ended March 31, 2025 and 2024 and (v) the Notes to the Interim Condensed Consolidated Financial Statements.

Pursuant to the requirements of the Securities

Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

NIOCORP DEVELOPMENTS LTD.

XBRL Instance Document

XBRL Taxonomy Extension- Schema

XBRL Taxonomy Extension – Calculations

XBRL Taxonomy Extension – Definitions

XBRL Taxonomy Extension – Labels

XBRL Taxonomy Extension – Presentations

Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

compensation plan, arrangement, or agreement.

filed as an exhibit to the Company’s Draft Registration Statement on Form S-1 (Registration No.

377-01354) submitted

to the SEC on July 26, 2016, and incorporated herein by reference.

filed as an exhibit to the Company’s Current Report on Form 8-K (File No.

001-41655) filed with the SEC on March 17,

2023, and incorporated herein by reference.

filed as an exhibit to the Company’s Current Report on Form 8-K (File No.

001-41655) filed with the SEC on September

29, 2025, and incorporated herein by reference.

filed as an exhibit to the Company’s Current Report on Form 8-K (File No.

001-41655) filed with the SEC on October 15,

2025, and incorporated herein by reference.

Electronically Herewith.

Attached as Exhibit 101 to this report are the following formatted in inline XBRL (Extensible Business

Reporting Language):

(i) the Interim Condensed Consolidated Balance Sheets as of September 30, 2025 and June 30, 2025,

(ii) the Interim Condensed Consolidated Statements of Operations and Comprehensive Loss for the Three Months ended September

30, 2025 and 2024, (iii) the Interim Condensed Consolidated Statements of Cash Flows for the Three Months ended September

30, 2025 and 2024, (iv) the Interim Condensed Consolidated Statements of Shareholders’ Equity and Redeemable Noncontrolling

Interest for the Three Months ended September 30, 2025 and 2024 and (v) the Notes to the Interim Condensed Consolidated

Financial Statements.

to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf

by the undersigned thereunto duly authorized.

DEVELOPMENTS LTD.

President, Chief Executive Officer and

1 unchanged sentence

(Principal Executive Officer)

/s/ Neal Shah

November 13, 2025

Chief Financial Officer

(Principal Financial and Accounting Officer)

November 13, 2025

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-Q

Item 5. Other Information