Bunker Hill Mining Corp. — Proxy Solicitation & Information Statement 2026

Apr 9, 2026

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

Date: April 8, 2026

To: All Canadian Securities Regulatory Authorities
Subject: BUNKER HILL MINING CORP.

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 06, 2026
Record Date for Voting (if applicable): May 06, 2026
Beneficial Ownership Determination Date: May 06, 2026
Meeting Date: June 11, 2026
Meeting Location (if available): Kellogg, ID
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	120613823	US1206138232

Sincerely,

Computershare
Agent for BUNKER HILL MINING CORP.