Rhyolite Resources Ltd. — Proxy Solicitation & Information Statement 2026

Apr 7, 2026

Date: April 7, 2026

Computershare
510 Burrard Street, 3rd Floor
Vancouver BC, V6C 3B9
www.computershare.com

To: All Canadian Securities Regulatory Authorities

AMENDED – See highlighted

Subject: RHYOLITE RESOURCES LTD.

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 :	April 30, 2026
Record Date for Voting (if applicable) :	April 30, 2026
Beneficial Ownership Determination Date :	April 30, 2026
Meeting Date :	June 09, 2026
Meeting Location (if available) :	Vancouver, BC
Issuer sending proxy related materials directly to NOBO:	Yes
Issuer paying for delivery to OBO:	Yes

Notice and Access (NAA) Requirements:

• NAA for Beneficial Holders: No
• NAA for Registered Holders: No

Voting Security Details:

Description	CUSIP Number	ISIN
COMMON SHARES	76243H109	CA76243H1091

Sincerely,

Computershare

Agent for RHYOLITE RESOURCES LTD.