Amended and Restated Promissory Note
Giant Oak Acquisition Corp
THIS PROMISSORY NOTE (“NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”). THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.
AMENDED AND RESTATED PROMISSORY NOTE
| Principal Amount: Up to $1,000,000 | Dated as of August 28, 2026 |
| New York, New York |
This Amended and Restated Promissory Note (this “Note”) amends and restates the Amended and Restated Promissory Note, dated as of September 16, 2025 (the “Original Note”) from Giant Oak Acquisition Corporation, a British Virgin Islands corporation and blank check company (the “Maker”), payable to the order of Blue Engine Management Corp. or its registered assigns or successors in interest (the “Payee”). The terms, conditions and provisions of the Original Note, all amendments to and/or restatements of the Original Note made or purported to be made prior to the date hereof, are hereby amended and restated in their entirety effective as of the date hereof so that henceforth the terms, conditions and provisions of the Original Note shall read and be as set forth in this Note and Maker agrees to comply with and be subject to
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