Nexus Uranium Corp. — M&A Activity 2025

Sep 8, 2025

Nexus Uranium Corp.
503 905 West Pender Street
Vancouver, BC V6C 1L6

Blade Resources Inc.
1500 – 1055 West Georgia Street
Vancouver, BC V6E 4N7

Attention: Jeremy Poirier

July 25, 2025

Re: Amendment to the Arrangement Agreement dated June 25, 2025 (the “Arrangement Agreement”), between Basin Uranium Corp. (the “Company”) Nexus Uranium Corp. (“Nexus”) and Blade Resources Inc. (“Blade”, and together with the Company, and Nexus, the “Parties”)

Capitalized terms used but not otherwise defined will have the meaning given to such terms in the Arrangement Agreement.

This letter (the “Amendment Agreement”) will serve to confirm the terms upon which we have agreed to amend the Arrangement Agreement in relation to the plan of arrangement between the Parties. When countersigned by each of the parties hereof, the Amendment Agreement will constitute a binding agreement between the Parties.

In consideration of the mutual promises and the respective covenants and agreements herein contained and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged by the parties, the parties hereby agree delete Schedule “C” to the Arrangement Agreement as currently constituted and replace such Schedule with Schedule “A” in this Amendment Agreement.

Except as amended by this Amendment Agreement, the Arrangement Agreement remains unamended and continues in full force and effect.

This Amendment Agreement may be executed in two or more counterparts, each of which will be deemed to be an original and all of which together will constitute one agreement, and each party may deliver an executed copy of this Amendment Agreement by electronic transmission, which when delivered will be deemed to be an original.

This Amendment Agreement and its application and interpretation will be governed exclusively by the laws of the Province of British Columbia, and the Federal laws of Canada applicable therein.

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If the above accurately describes your understanding of our agreement in this regard, please execute this Amendment Agreement where indicated below.

Sincerely,

BASIN URANIUM CORP.

Per: "Michael Blady"
Name: Michael Blady
Title: Chief Executive Officer

NEXUS URANIUM CORP.

Per: "Jeremy Poirier"
Name: Jeremy Poirier
Title: Chief Executive Officer

BLADE RESOURCES INC.

Per: "Michael Blady"
Name: Michael Blady
Title: Director

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SCHEDULE “A”

BASIN SPINOUT ASSETS

1. CHG Project (BC Canada)

Title Number	Claim Name	Area (ha)
[Asset information Redacted]