Argo Graphene Solutions Corp. — Proxy Solicitation & Information Statement 2026

Feb 17, 2026

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NOTICE OF ANNUAL GENERAL MEETING

NOTICE IS HEREBY GIVEN that the Annual General Meeting (the "Meeting") of holders (the "Shareholders") of common shares (the "Common Shares") of Plantable Health Inc. ("Plantable" or the "Corporation") will be held at Suite 750, 1095 W Pender Street, Vancouver, British Columbia, Canada, V6E 2M6, on Thursday, June 29, 2023, at the hour of 10:00 a.m. (Pacific Time) for the following purposes:

• 1. to receive the audited consolidated financial statements of the Corporation for the financial year ended December 31, 2022 and accompanying report of the auditor;
• 1. to set the number of directors at five (5);
• 1. to elect the five nominees of the Corporation standing for election as directors of the Corporation to hold office until the next annual meeting of Shareholders or until his or her successor is duly elected or appointed;
• 1. to appoint MNP LLP, Chartered Professional Accountants, as the auditors of the Corporation for the ensuing year at a remuneration to be fixed by the directors of the Corporation; and
• 1. to transact such other business as may properly come before the meeting or any postponement or adjournment thereof.

The Management Information Circular accompanying this Notice of Meeting provides additional information relating to the matters to be dealt with at the Meeting and is supplemental to, and expressly made a part of this Notice of Meeting. Also accompanying this Notice of Meeting is either a form of proxy for registered shareholders or a voting instruction form for non-registered shareholders.

The directors of the Corporation have fixed May 16, 2023 as the record date for the Meeting (the "Record Date"). Only Shareholders of record at the close of business on the Record Date are entitled to vote at the Meeting or any adjournment thereof.

Whether or not you expect to attend the Meeting, or any postponement or adjournment thereof, PLEASE SIGN, DATE AND RETURN THE ENCLOSED PROXY PROMPTLY IN THE ENCLOSED ENVELOPE OR VOTE BY PROXY USING THE TELEPHONE OR INTERNET BY FOLLOWING THE INSTRUCTIONS PROVIDED IN THE ACCOMPANYING FORM OF PROXY.

To be effective, proxies must be received by Odyssey Trust Company, Suite 350, 409 Granville Street, Vancouver, British Columbia V6C 1T2 Canada by 10:00 a.m. (Pacific time) on Tuesday, , June 27, 2023 or at least 48 hours (excluding Saturdays, Sundays and holidays) before the time that the Meeting is to be reconvened after any adjournment of the Meeting. Late proxies may be accepted or rejected by the Chair of the Meeting in his or her discretion, and the Chair is under no obligation to accept or reject any particular late proxy.

If you are a registered shareholder, whether or not you are able to attend the Meeting in person, we ask you to complete, sign and return the enclosed proxy. Please note that registered shareholders of the Corporation may vote in person at the Meeting and any postponement or any adjournment thereof even if you have previously returned the proxy.

If you are a non-registered shareholder and receive these materials through your broker, institution, participant, trustee or administrator of a retirement savings plan, retirement income fund, education savings plan or other similar savings or investment plan registered under the Income Tax Act (Canada) or a nominee of any of the foregoing that holds your securities on your behalf (the "Intermediary"), please complete and return the materials in accordance with the instructions provided to you by the Intermediary. Failure to do so may result in your Common Shares not being eligible to be voted by proxy at the Meeting. Note that the deadlines set by your Intermediary for submitting your voting instruction form may be earlier than the dates described above.

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Your promptness in returning the proxy will assist in the expeditious and orderly processing of proxies and will ensure that your Common Shares are represented.

If you have any questions about the procedures required to qualify to vote at the Meeting or about obtaining and depositing the required form of proxy, you should contact Odyssey Trust Company via email at: www.odysseycontact.com.

DATED at Vancouver, British Columbia as of the 16th day of May, 2023.

BY ORDER OF THE BOARD OF DIRECTORS PLANTABLE HEALTH INC.

"Zayn Kalyan"

Zayn Kalyan Chief Executive Officer and Director