NIOCORP DEVELOPMENTS LTD. 2025-2026 Proxy Voting Records

Description as filed by funds: Election of Directors: Anthony W. Fulton

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“Elect Director: Anthony W. Fulton”): 27,962,280 for, 993,498 withheld, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 97% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

The 41 asset managers below reported 5,094,924 for, 10,622 withheld.

Showing the 25 largest of 41 asset managers. See all 41 in the interactive database.

Description as filed by funds: Election of Directors: Dean C. Kehler

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“Elect Director: Dean C. Kehler”): 22,781,962 for, 6,173,816 withheld, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 79% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

The 41 asset managers below reported 4,379,702 for, 637,517 withheld, 88,327 abstained.

Showing the 25 largest of 41 asset managers. See all 41 in the interactive database.

Description as filed by funds: Election of Directors: Mark A. Smith

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“Elect Director: Mark A. Smith”): 27,749,599 for, 1,206,180 withheld, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 96% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

The 41 asset managers below reported 5,067,762 for, 37,784 withheld.

Showing the 25 largest of 41 asset managers. See all 41 in the interactive database.

Description as filed by funds: Election of Directors: Michael G. Maselli

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“Elect Director: Michael G. Maselli”): 22,939,856 for, 6,015,923 withheld, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 79% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

The 41 asset managers below reported 4,489,102 for, 528,117 withheld, 88,327 abstained.

Showing the 25 largest of 41 asset managers. See all 41 in the interactive database.

Description as filed by funds: Election of Directors: Nilsa Guerrero-Mahon

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“Elect Director: Nilsa Guerrero-Mahon”): 20,556,963 for, 8,398,816 withheld, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 71% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

The 41 asset managers below reported 3,522,959 for, 1,489,601 withheld, 92,986 abstained.

Showing the 25 largest of 41 asset managers. See all 41 in the interactive database.

Description as filed by funds: Election of Directors: Peter Oliver

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“Elect Director: Peter Oliver”): 25,418,410 for, 3,537,369 withheld, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 88% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

The 41 asset managers below reported 4,127,448 for, 917,005 withheld, 61,093 abstained.

Showing the 25 largest of 41 asset managers. See all 41 in the interactive database.

Description as filed by funds: Number of Directors To set the number of directors for the ensuing year at six.

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“1. To Set the Number of Directors for the Ensuing Year at Six”): 55,164,407 for, 1,609,193 against, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 97% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 42 asset managers below reported 5,087,698 for, 19,325 against.

Showing the 25 largest of 42 asset managers. See all 42 in the interactive database.

Description as filed by funds: Approve Amendment and Restatement of the NioCorp Developments Ltd. Long Term Incentive Plan BE IT RESOLVED AS AN ORDINARY RESOLUTION THAT: 1. The Amended and Restated NioCorp Developments Ltd. Long Term Incentive Plan, substantially as described in and appended as Schedule B to the Company's Management Information and Proxy Circular in respect of the annual general meeting of shareholders of the Company held on April 6, 2026 (the "Meeting"), is hereby authorized and approved to be effective from the date of the Meeting. 2. Any one director or officer of the Company be and is hereby authorized and directed to do all such acts and things and to execute and deliver all such documents, instruments and assurances as in the opinion of such director or officer may be necessary or desirable to give effect to the foregoing resolutions.

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“5. Approval of the Amendment and Restatement of the NioCorp Developments Ltd”): 23,285,354 for, 5,326,885 against, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 81% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 41 managers: 4,459,308 for, 636,893 against, 10,622 abstained. Showing the 25 largest; see all in the interactive database.

Institutional-manager reports, all 3 managers: 648,989 for.

Description as filed by funds: Approve Amendment and Extension of Company's Shareholder Rights Plan BE IT RESOLVED AS AN ORDINARY RESOLUTION THAT: 1. The Amended and Restated Shareholder Rights Plan Agreement to be dated April 6, 2026 between the Company and Computershare Investor Services Inc., as rights agent (the "Amended Rights Plan Agreement"), in the form attached as Schedule C to the Company's Management Information and Proxy Circular in respect of the annual general meeting of shareholders of the Company held on April 6, 2026, be and is hereby authorized and approved, such that the amendments to the original shareholder rights plan agreement dated November 21, 2025, including the extension of the expiration time of the Rights Plan to 5:00 p.m. (Toronto time) on the date of the Company's annual general meeting of shareholders held in 2027, or earlier upon the redemption of the rights, or provided that a Flip-In Event (as defined in the Amended Rights Plan Agreement) has not occurred, at such date or time as the Company's Board of Directors may determine in its sole discretion, is hereby authorized, approved and confirmed; and 2. Any one director or officer of the Company, be, and each of them is hereby, authorized and directed for and on behalf, and in the name, of the Company, to execute or cause to be executed and to deliver or cause to be delivered all such documents, and to do or cause to be done all such acts and things, as in the opinion of such director or officer may be necessary or desirable in order to give effect to this resolution.

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“6. Approval of the Amendment and Extension of the Company's Shareholder Rights Plan”): 23,942,251 for, 4,719,596 against, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 84% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 42 asset managers below reported 4,597,081 for, 509,942 against.

Showing the 25 largest of 42 asset managers. See all 42 in the interactive database.

Description as filed by funds: Advisory Vote to Approve Named Executive Officer Compensation To approve, on a nonbinding, advisory basis, the compensation of the Company's named executive officers as described in the Company's Management Information and Proxy Circular in respect of the annual general meeting of shareholders of the Company held on April 6, 2026.

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“4. Approval, on a Nonbinding, Advisory Basis, of the Compensation of the Company's Named Executive Officers”): 22,285,849 for, 6,272,537 against, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 78% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 40 managers: 4,404,222 for, 690,502 against, 10,622 abstained. Showing the 25 largest; see all in the interactive database.

Institutional-manager reports, all 157 managers: 8,534,936 for, 3,096,897 against, 896 abstained. Showing the 25 largest; see all in the interactive database.

Description as filed by funds: Appointment of Auditors To appoint Deloitte & Touche LLP as auditors of the Company to hold office until the next annual general meeting and to authorize the Board of Directors to fix their remuneration through the Audit Committee.

NIOCORP DEVELOPMENTS LTD.’s own tally for this item (“3. Appointment of Deloitte & Touche LLP as Auditors of the Company for the Ensuing Year and Authorizing the Directors to Fix Their Remuneration”): 55,986,839 for, 786,761 withheld, per its Form 8-K filed April 6, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 99% of votes cast — FOR ÷ (FOR + WITHHELD); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports, all 41 managers: 5,096,201 for, 10,622 withheld. Showing the 25 largest; see all in the interactive database.

Institutional-manager reports, all 4 managers: 608,694 for.