Tintina Mines Limited — Proxy Solicitation & Information Statement 2025

Jul 17, 2025

TINTINA MINES LIMITED

NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON AUGUST 19, 2025

TO: The shareholders of Tintina Mines Limited

NOTICE IS HEREBY GIVEN that the annual general and special meeting of the shareholders of Tintina Mines Limited (the "Corporation") will be held at the offices of DSA Corporate Services Limited Partnership, The Canadian Venture Building, 82 Richmond Street East, Toronto, Ontario, M5C 1P1, on August 19, 2025 at 9:00 am (EDT) (the "Meeting"). The Meeting will be held for the following purposes:

(1) to receive the audited consolidated financial statements of the Corporation for the financial years ended December 31, 2024 and December 31, 2023, together with the reports of the auditors thereon;
(2) to elect directors of the Corporation for the ensuing year;
(3) to re-appoint the auditors of the Corporation for the ensuing year and to authorize the directors to fix the remuneration to be paid to the auditors for the ensuing year;
(4) to ratify the Corporation's 2024 Stock Option Plan; and
(5) to transact such other business as may properly come before the Meeting or any adjournment(s) or postponement(s) thereof.

Accompanying this notice of meeting is the management information circular (the "Circular"), a form of proxy and a financial statement request form.

Additional information relating to the business to be submitted to the Meeting is contained in the management information circular and forms part of this Notice.

The board of directors of the Corporation (the "Board" or "Board of Directors") has fixed the close of business on July 4, 2025 as the record date for the purpose of determining Shareholders entitled to receive notice of, and vote at, the Meeting. Only Shareholders of record at the close of business on July 4, 2025 are entitled to vote at the Meeting. The failure of any Shareholder to receive notice of the Meeting does not deprive such Shareholder of the right to vote at the Meeting. Registered Shareholders, being those Shareholders whose names appear on the books and records of the Corporation as a registered holder of Common Shares, who are unable to attend the Meeting should complete, sign, date and return the enclosed form of proxy to Marrelli Trust Company Limited c/o Marrelli Trust Service Corp. 82 Richmond St. E., 2nd Floor Toronto, ON M5C 1P1 ("Marrelli").

Non-registered Shareholders, being Shareholders who beneficially own and hold Common Shares through a broker or other intermediary and who do not hold Common Shares in their own names, who have received these materials through their broker or another intermediary should refer to the accompanying information circular for further instructions.

Registered shareholders who are unable to attend the Meeting are requested to complete, sign, date and return the enclosed form of proxy in accordance with the instructions set out therein and in the Circular accompanying this Notice of Meeting. A proxy will not be valid unless it is received by Marrelli, in accordance with the instructions specified on the form of proxy. The chairman of the Meeting has the discretion to accept proxies received after that time.

DATED at Toronto, Ontario, this 8th of July, 2025.

BY ORDER OF THE BOARD OF DIRECTORS

"Juan Enrique Rassmuss"
Juan Enrique Rassmuss
President, Chairman, Director and Interim CEO