MAYFAIR GOLD CORP.

Cautionary Note Regarding Forward-Looking Information

This material change report contains certain forward-looking information within the meaning of applicable Canadian securities legislation and forward-looking statements within the meaning of applicable United States securities legislation (collectively, “forward-looking information”). The use of the words “will” and “expected” and similar expressions is intended to identify forward-looking information. Forward-looking information in this material change report includes, but is not limited to, the Company’s promise of becoming Ontario’s next significant gold producer. Although Mayfair Gold believes that the expectations reflected in such forward-looking information is reasonable, readers are cautioned that actual results may vary from the forward-looking information. The Company has based the forward-looking information on the Company’s current expectations and assumptions about future events. This information also involves known and unknown risks, uncertainties, and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking information, including the risks, uncertainties, and other factors identified in the annual information form and Form 40-F of the Company for the year ended December 31, 2025, available under the Company's profiles on SEDAR+ atwww.sedarplus.ca and EDGAR at www.sec.gov, respectively. Furthermore, the forward-looking information contained in this material change report is as at the date of this material change report, and Mayfair does not undertake any obligation to publicly update or revise any of this forward-looking information except as may be required by applicable securities laws.