A nine-month-old blank-check deal just got more time. Columbus Acquisition Corp (COLA) filed an 8-K on August 6, 2026, disclosing the First Amendment to its business combination agreement with WISeSat.Space Corp., pushing the Outside Date to October 31, 2026. The amendment keeps the transaction alive. The extension itself is evidence that the original timeline proved insufficient.
What the First Amendment does
The business combination agreement was signed November 9, 2025. It links Columbus, a Cayman Islands exempted company listed on Nasdaq, with WISeSat.Space Holdings Corp. (Pubco, British Virgin Islands) as the resulting public company, WISeSat Merger Sub Corp., a Cayman Islands subsidiary of Pubco, as the merger vehicle, and WISeSat.Space Corp. (the Target, British Virgin Islands) as the operating business being acquired. WISeKey International Holding Ltd., a Swiss company, and its British Virgin Islands affiliate SEALSQ Corp joined as sellers through a Joinder Agreement dated December 12, 2025.
The First Amendment changes one term. The Outside Date moves to October 31, 2026. All capitalized terms carry the definitions from the original BCA, per the filing.
Structure of the Columbus securities
Columbus trades three classes of securities on the Nasdaq Stock Market. Ordinary shares trade under COLA. Units (COLAU) each consist of one ordinary share and one right to acquire one-seventh of one ordinary share, with those rights trading separately under COLAR. The par value on the ordinary shares is $0.0001 per share.
The proxy process
Pubco has filed a registration statement on Form F-4 (Registration No. 333-296969) with the SEC. That filing incorporates a proxy statement for Columbus shareholders and a prospectus. Shareholders will receive the definitive proxy statement by mail after the SEC declares the registration statement effective, at a record date yet to be established. Columbus lists its principal offices at 14 Prudential Tower, Singapore, and filed its most recent Annual Report on Form 10-K with the SEC on March 19, 2026.
The counterargument
Extensions are common in blank-check transactions, and an F-4 already on file with the SEC suggests the deal has cleared some of the structural review that ends many SPAC processes early. That is the case for reading August 6 as administrative rather than alarming.
On balance, the facts settle this narrowly. The registration statement is not yet effective, and the shareholder vote has not been scheduled. October 31, 2026 is now the line to watch.