Bonanza Mining Corporation — Proxy Solicitation & Information Statement 2025

Sep 26, 2025

September 26, 2025

Computershare

510 Burrard Street, 3rd Floor

Vancouver BC, V6C 3B9

www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: BONANZA MINING CORPORATION

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type :	Annual General and Special Meeting
Record Date for Notice of Meeting :	October 24, 2025
Record Date for Voting (if applicable) :	October 24, 2025
Beneficial Ownership Determination Date :	October 24, 2025
Meeting Date :	December 08, 2025
Meeting Location (if available) :	Vancouver, BC
Issuer sending proxy related materials directly to NOBO:	Yes
Issuer paying for delivery to OBO:	No

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders	Yes
Beneficial Holders Stratification Criteria:	Not Applicable
NAA for Registered Holders	Yes
Registered Holders Stratification Criteria:	Not Applicable

Voting Security Details:

Description	CUSIP Number	ISIN
COMMON SHARES	09790B100	CA09790B1004

Sincerely,

Computershare

Agent for BONANZA MINING CORPORATION