Advantage Energy Ltd. — Proxy Solicitation & Information Statement 2026

Apr 1, 2026

Computershare

Date: April 1, 2026

800 - 324 8th Avenue SW

Calgary AB, T2P 2Z2

www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: ADVANTAGE ENERGY 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 Meeting
Record Date for Notice of Meeting: April 02, 2026
Record Date for Voting (if applicable): April 02, 2026
Beneficial Ownership Determination Date: April 02, 2026
Meeting Date: May 07, 2026
Meeting Location (if available): Calgary, AB
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: No
NAA for Registered Holders: No

Voting Security Details:

Description	CUSIP Number	ISIN
COMMON SHARES	00791P107	CA00791P1071

Sincerely,

Computershare

Agent for ADVANTAGE ENERGY LTD.