Barrick Mining Corporation — Proxy Solicitation & Information Statement 2026

Apr 8, 2026

BARRICK

PROXY

FOR USE AT THE ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON MAY 8, 2026

The undersigned holder of common shares of BARRICK MINING CORPORATION ("Barrick") hereby appoints John L. Thornton, the Chairman of Barrick, or failing him, Loreto Silva, Lead Director, or failing her, Mark F. Hill, the President and Chief Executive Officer, or instead of any of the foregoing, ______ as the proxyholder of the undersigned, with full power of substitution, to attend, vote and otherwise act for and on behalf of the undersigned at the Annual Meeting of the Shareholders of Barrick ("Annual Meeting") to be held via live webcast online at meetings.lumiconnect.com/400-059-668-044, password: barrick2026 (case sensitive) on May 8, 2026, at 10:00 a.m., Toronto time, and at any postponed or adjourned meeting, to the same extent and with the same power as if the undersigned was personally present at the said meeting or such postponement or adjournment thereof and, without limiting the generality of the power hereby conferred, the said proxyholder is specifically directed to vote all shares of Barrick registered in the name of the undersigned as indicated below.

The Board of Directors and management recommend that shareholders VOTE FOR items 1, 2 and 3 below:

1. ELECTION OF DIRECTORS

01 H. Cai	☐ FOR	☐ WITHHOLD	06 R. A. P. Samek	☐ FOR	☐ WITHHOLD
02 B. L. Greenspun	☐ FOR	☐ WITHHOLD	07 M. L. Silva	☐ FOR	☐ WITHHOLD
03 J. B. Harvey	☐ FOR	☐ WITHHOLD	08 J. L. Thornton	☐ FOR	☐ WITHHOLD
04 M. F. Hill	☐ FOR	☐ WITHHOLD	09 P. J. Vauramo	☐ FOR	☐ WITHHOLD
05 A. N. Kabagambe	☐ FOR	☐ WITHHOLD

1. RESOLUTION APPROVING THE APPOINTMENT OF PRICEWATERHOUSECOOPERS LLP as the auditor of Barrick and authorizing the directors to fix its remuneration

☐ FOR
☐ WITHHOLD FROM VOTING

1. ADVISORY RESOLUTION ON APPROACH TO EXECUTIVE COMPENSATION

☐ FOR
☐ AGAINST

The proxyholder appointed above has the authority to vote the shares represented by this proxy in his or her discretion on any amendments or variations to the foregoing and on any other matters (other than matters which are to come before the Annual Meeting and which are the subject of another proxy executed by the undersigned) which may properly come before the Annual Meeting or any postponement or adjournment thereof.

This proxy is solicited on behalf of the management of Barrick. Shareholders have the right to appoint a person to attend and act on their behalf at the Annual Meeting other than the persons designated above and may exercise such right by inserting the name of their designated proxyholder in the blank space provided above for that purpose.

DATED this __ day of __, 2026

Signature of Shareholder

Name of Shareholder (please print as registered)

NOTES:

1. This proxy form must be signed and dated by the shareholder or his or her attorney authorized in writing or, if the shareholder is a corporation, by an officer or attorney thereof duly authorized. If the proxy form is not dated in the space provided, it is deemed to bear the date on which it is mailed by the management of Barrick.

2. If no specification has been made with respect to the voting on the resolution referred to in items 1, 2 or 3 above, the proxy nominees are instructed to vote the shares represented by this proxy on such matter and in favour of the resolution referred to in items 1, 2 and 3.

3. To be effective, this proxy must be deposited (1) by mail to the office of Barrick's transfer agent, TSX Trust Company, at the address on the envelope provided herewith; (2) by personal delivery to TSX Trust Company, Proxy Dept., 100 Adelaide Street West, Suite 301, Toronto, Ontario M5H 4H1; (3) by facsimile at 1-416-595-9593; (4) via telephone at 1-888-489-5760; or (5) via the Internet at www.meeting-vote.com, in each case not later than 5:00 p.m., Toronto time, on Wednesday, May 6, 2026, or the second-last business day before any adjourned or postponed meeting.

CONTINUED ON NEXT PAGE

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1. In order for a designated proxyholder to participate and vote at the virtual Annual Meeting, such designated proxyholder must contact TSX Trust Company at 1-866-751-6315 (within North America) or 1-416-682-3860 (outside of North America) or complete the form using the link https://www.tsxtrust.com/control-number-request by 5:00 p.m. (Toronto time) on May 7, 2026, to obtain a control number for the Annual Meeting. Once a control number is obtained, such proxyholder may attend the Annual Meeting virtually by logging in online at meetings.lumiconnect.com/400-059-668-044, clicking on "I have a Control Number", entering the control number and the password barrick2026 (case sensitive) and clicking the "Login" button.

REQUEST FOR QUARTERLY AND ANNUAL REPORTS

Barrick's quarterly reports and Annual Report, including financial statements and related MD&A, are available to shareholders at www.barrick.com/investors on the day they are released, but if you wish to receive the quarterly reports for 2026 and/or next year's Annual Report by mail, please mark the boxes below. If you do not mark the box and return this form, you will NOT receive these reports by mail.

☐ I wish to receive the 4 quarterly reports
☐ I wish to receive the Annual Report in 2027
☐ I wish to receive the selected reports by email; my email address is _____