Montero Mining and Exploration Ltd. — Proxy Solicitation & Information Statement 2025

Apr 17, 2025

Montero

Date: April 17, 2025

To: All Canadian Securities Regulatory Authorities

Subject: MONTERO MINING AND EXPLORATION LTD.

Dear Sir/Madam:

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

Issuer: Montero Mining and Exploration Ltd.
Meeting Type: Special Meeting
Record Date for Notice of Meeting: May 12, 2025
Record Date for Voting (if applicable): May 12, 2025
Beneficial Ownership Determination Date: May 12, 2025
Meeting Date: June 11, 2025
Meeting Location (if available): Toronto, Ontario
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: No
NAA for Registered Holders: No

Voting Security Details:
| Description | CUSIP Number | ISIN |
| --- | --- | --- |
| Common Shares | 612648303 | CA6126483032 |

Sincerely,

Montero Mining and Exploration Ltd.

/s/ "Antony Harwood"

Dr. Antony Harwood
Director and Chief Executive Officer