SupremeX

SUPREMEX INC.

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

TAKE NOTICE that the annual meeting (the "Meeting") of holders (the "Shareholders") of common shares (the "Shares") of Supremex Inc. ("Supremex" or the "Company") will be held at the office of Stikeman Elliott LLP located at 1155 René-Lévesque Boulevard West, 41st Floor, Montreal, Quebec, H3B 3V2 on Thursday, May 8, 2025 at 11:00 a.m. (Eastern time) for the following purpose:

(1) to receive the audited consolidated financial statements of Supremex for the financial year ended December 31, 2024, together with the independent auditors' report;
(2) to elect the directors of Supremex (the "Directors") who will serve until the next annual Shareholders' meeting or until their successors are elected or appointed;
(3) to appoint the auditors of Supremex and authorize the Directors to fix their remuneration; and
(4) to transact such other business as may properly come before the Meeting or any adjournment thereof.

The accompanying management information circular provides additional information relating to the matters to be dealt with at the Meeting and is deemed to form part of this notice.

The management's discussion and analysis of financial condition and results of operations, the audited consolidated financial statements of Supremex and the auditors' report for the financial year ended December 31, 2024 are available on the Company's website at www.supremex.com and on SEDAR+ under the Company's profile at www.sedarplus.ca.

The record date (the "Record Date") for determining those Shareholders entitled to receive notice and to vote at the Meeting, or any adjournment thereof, is the close of business on March 31, 2025. Only persons registered as Shareholders of Supremex as at the close of business on the Record Date are entitled to receive notice of and to vote at the Meeting, and no person becoming a Shareholder after the Record Date shall be entitled to receive notice of and to vote at the Meeting or any adjournment thereof. The failure of any Shareholder to receive notice of the Meeting does not deprive the Shareholder of the right to vote at the Meeting. Shareholders are invited to attend the Meeting; there will be an opportunity to ask questions and meet management.

A Shareholder who is unable to be present at the Meeting and who wishes to appoint a person other than the management nominees identified on the form of proxy to represent him or her at the Meeting may do so either by striking out the names set forth in the enclosed form of proxy and by inserting such person's name in the blank space provided therein or by completing another proper form of proxy, and, in either case, by returning the completed proxy in the pre-addressed return envelope provided for that purpose to Computershare Investor Services Inc. at 100 University Avenue, 8th floor, Toronto, Ontario, M5J 2Y1, such form of proxy to be received by Computershare no later than 5:00 p.m. (Eastern time) on May 6, 2025 or if the Meeting is adjourned, no later than 48 hours before any reconvened meeting. Non-Registered Shareholders should carefully follow the instructions of their intermediaries to ensure that their Shares are voted at the Meeting in accordance with such Shareholder's instructions.

DATED at Montreal, Quebec, this 27th day of March 2025.

BY ORDER OF THE BOARD OF DIRECTORS

(signed) Stewart Emerson
President and Chief Executive Officer of Supremex