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 MAKER THAT SUCH REGISTRATION IS NOT REQUIRED.
PROMISSORY NOTE
| Principal Amount: Up to $400,000 | Dated as of March 31, 2026 |
New York, New York
Pubco Space Acquisition 1, a Cayman Islands exempted company limited (the “Maker”), promises to pay to the order of Pubco Space Acquisition 1 LLC, a Delaware limited liability company, or its registered assigns or successors in interest (the “Payee”), the principal sum of up to Four Hundred Thousand Dollars ($400,000) in lawful money of the United States of America, on the terms and conditions described below. All payments on this Note shall be made by check or wire transfer of immediately available funds or as otherwise determined by the Maker to such account as the Payee may from time to time designate by written notice in accordance with the provisions of this Note.
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