Cosigo Resources Ltd. — Proxy Solicitation & Information Statement 2026

May 20, 2026

Cosigo Resources Ltd.

NOTICE OF ANNUAL GENERAL MEETING

NOTICE IS HEREBY GIVEN that the annual general meeting together with any and all adjournments and postponements thereof (the “Meeting”) of the holders (the “Shareholders”) of common shares (“Common Shares”) of Cosigo Resources Ltd. (the “Corporation”) will be held on June 22, 2026 at 10:00 am Pacific Time (Vancouver time) solely by means of remote communication via http://meet.google.com/keg-czed-azj. Meeting is held for the following purposes, namely:

1. to fix the number of directors at five;
2. to elect four directors for the ensuing year;
3. to appoint the auditor for the ensuing year and to authorize the directors to fix the auditor’s remuneration;
4. confirm the Company’s stock option plan, as required annually by the policies of the TSX Venture Exchange;
5. to transact such further or other business as may properly come before the meeting and any adjournments thereof.

The accompanying 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 of meeting.

Only shareholders of record at the close of business on May 11, 2026 will be entitled to receive notice of, and to vote at, the meeting or any adjournment thereof. Registered shareholders who are unable to or who do not wish to attend the Meeting in person are requested to date and sign the enclosed Proxy form promptly and return it in the self-addressed envelope enclosed for that purpose or by any of the other methods indicated in the Proxy form. To be used at the meeting, proxies must be received by Alliance Trust Company, Attention: Proxy Department, 1010, 407 - 2nd Street S.W., Calgary, Alberta T2P 2Y3 no later than 48 hours (excluding Saturdays, Sundays and holidays) prior to the time of the meeting or any adjournment thereof, unless the chairman of the Meeting elects to exercise his discretion to accept proxies deposited subsequently. If a registered shareholder receives more than one Proxy form because such shareholder owns shares registered in different names or addresses, each Proxy form should be completed and returned.

Dated this 13th day of May 2026.

BY ORDER OF THE BOARD OF DIRECTORS

Andy Rendle,
COO