Constellation Acquisition Corp I (the Company) drew $5,000 in Extension Funds on February 27, 2026. These funds were approved by a unanimous director resolution on February 26, 2026. The funds were drawn under an unsecured promissory note dated January 30, 2024, with Constellation Sponsor LP. The $5,000 was deposited into the Company's trust account for public shareholders. This deposit enables the Company to extend the deadline for its initial business combination from February 28, 2026, to March 29, 2026. This is the first of eleven one-month extensions permitted by the Company's amended and restated memorandum and articles of association. The promissory note does not bear interest and matures upon the closing of the initial business combination. If a business combination is not consummated, the note will only be repaid from amounts remaining outside the Company's trust account, if any.