St. Augustine Gold and Copper Limited — Proxy Solicitation & Information Statement 2026

Apr 22, 2026

April 22, 2026

Computershare

320 Bay Street, 14th Floor

Toronto ON M5H 4A6

www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: ST. AUGUSTINE GOLD AND COPPER LIMITED

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 Meeting
Record Date for Notice of Meeting :	May 15, 2026
Record Date for Voting (if applicable) :	May 15, 2026
Beneficial Ownership Determination Date :	May 15, 2026
Meeting Date :	June 26, 2026
Meeting Location (if available) :	Virtual Meeting
Issuer sending proxy related materials directly to NOBO:	No
Issuer paying for delivery to OBO:	Yes

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	G8448A103	VGG8448A1030

Sincerely,

Computershare

Agent for ST. AUGUSTINE GOLD AND COPPER LIMITED