Mr. Ryan Kalt, a shareholder, reports

EARLY WARNING NOTICE REGARDING ROTTENSTONE GOLD INC.

Ryan Kalt has filed an early warning report in connection with the aggregate acquisition of 591,500 common shares of Rottenstone Gold Inc., as purchased during the inclusive period of May 20, 2025, to Oct. 2, 2025, on an indirect basis through Kalt Industries Ltd., a corporate entity wholly owned by the acquiror, for which aggregate cash consideration of approximately $128,066 was paid to various open-market sellers during the acquisition period.

The early warning report is the result of the acquired shares, which, in their aggregate, represent 2.02 per cent of the issued and outstanding common shares of the issuer, therein providing for the regulatory disclosures herewith associated.

Mr. Kalt now owns, on a combined direct and indirect basis, a total of 24,433,400 common shares of the issuer, representing 83.57 per cent of its issued and outstanding common shares as at the date hereof. As of Oct. 2, 2025, the issuer reports 29,236,400 common shares issued and outstanding.

The acquired shares were acquired by Mr. Kalt for investment purposes with such particulars being further described in the Form 62-103F1 that accompanies this prescribed early warning notice press release, such early warning report having been made available today on SEDAR+.

Mr. Kalt is an approved control person of the issuer, as that first term as defined by the policies of the issuer's listed exchange and, where applicable, by securities law.

Mr. Kalt and/or corporate entities owned by him may acquire additional securities of the issuer either on the open market or through private acquisitions or sell securities of the issuer either on the open market or through private dispositions in the future depending on market conditions, reformulation of plans or other relevant factors. Other than the foregoing, Mr. Kalt and/or corporate entities owned by him do not have plans or any future intentions which relate to or would result in any of the other foregoing matters.

The Form 62-103F1 (Required Disclosure under the Early Warning Requirements) associated with this press release can be obtained from SEDAR+. In the alternative, to obtain a copy of the report, please contact Mr. Kalt at 1-403-454-2984.