Mammoth Resources Corp. — Proxy Solicitation & Information Statement 2025

Dec 18, 2025

Notice of Meeting

Important Notice Regarding the Availability of Proxy Materials for Mammoth Resources Corp, General and Special Meeting to be held at:

https://us04web.zoom.us/j/74872414922?pwd=oabbErqUb2bmU67W0bb2rDax8uRY1Q.1

Meeting ID: 748 7241 4922,

Passcode: 9cbYEr

on January 19, 2026 at 11:00 AM EST

You are receiving this notice to advise that the proxy materials for the above noted security holders' meeting are available on the Internet. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We remind you to access and review all of the important information contained in the information circular and other proxy materials before voting. The information circular and other relevant materials are available at:

URL to view materials https://mammothresources.ca/investors/annual-meeting-materials/

OR

www.sedar.com

Obtaining a Copy of the Proxy Materials:

If you would like to receive a paper copy of the current meeting materials by mail, you must request one. There is no charge to you for requesting a copy.

Call us at 403-457-8766 within North America to request a paper copy of the materials for the current meeting.

To ensure you receive the material in advance of the voting deadline and meeting date, all requests must be received by us no later than 7 business days before the meeting to ensure timely receipt. If you do request the current materials, please note that another Voting Instruction Form/Proxy will not be sent, please retain your current one for voting purposes.

To obtain paper copies of the materials after the meeting date, please contact:

Paul Rozek

301-1220 Kensington Rd NW,

Calgary, Alberta, T2N 3P5

Securityholder Meeting Notice

PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your securities you must vote www.investorvote.com, 1-866-732-8683 or by mailing the enclosed Voting Instruction form/Proxy for receipt before January 15, 2026 10:00 AM EST using the enclosed Business Reply Envelope.

The resolutions to be voted on at the meeting are listed below along with the Sections within the Information Circular where disclosure regarding the matter can be found.

1. Election of Directors - Page 3
2. Appointment of Auditors - Page 11
3. Stock Option Plan - Page 16

Annual Financial statement delivery

• No Annual Report (or Annual Financial Statements) is (are) included in this mailing.