Mr. Nicholas Koo reports

ROTTENSTONE GOLD INC. REPORTS THIRD EXTENDING AMENDMENT, CORPORATE UPDATE

Rottenstone Gold Inc. is updating its previously announced proposed transaction involving certain royalty interests and other related proposed corporate developments (see also Rottenstone Gold news releases dated Dec. 10, 2025, March 4, 2026, and April 6, 2026, respectively).

Rottenstone Gold has executed a third amending agreement effective June 30, 2026, in respect of the proposed transaction that extends the closing date of the associated definitive agreement to Aug. 31, 2026. The third extending amendment provides the corporation with additional time to review matters related to the proposed transaction and formulate potential plans therearound.

Corporate update (stock option surrender and cancellation)

The corporation also reports that Ryan Kalt has voluntarily surrendered for cancellation an aggregate of 420,000 stock options of the issuer effective today, July 3, 2026. The surrendered options were previously granted under the issuer's stock option plan and were exercisable at an average blended price of 30 cents per common share through various periods to an outside date of Dec. 23, 2029. The corporation has accepted the option surrender, and the options have been cancelled effective today, July 3, 2026. No consideration was paid to Mr. Kalt nor is any consideration payable by the issuer in connection with the surrender or with respect to the cancellation of the options. Following the option surrender, Mr. Kalt holds no stock options in the issuer.

About Rottenstone Gold Inc.

Rottenstone Gold is a Vancouver-based junior mining company that holds the Rottenstone Project in Saskatchewan.

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