Item 1.01. Entry into a Material Definitive Agreement. On January 16, 2026, Columbus Acquisition Corp, a Cayman Islands exempted company (the “ Company”) held an extraordinary general meeting of shareholders (the “ Extraordinary General Meeting”), where the shareholders of the Company approved, among the other things, to amend the Investment Management Trust Agreement dated January 22, 2025 (the “ Trust Agreement”), by and between the Company and Continental Stock Transfer & Trust Company, a New York limited purpose trust company (the “ Trustee”) to provide that the Trustee must commence liquidation of the Company’s trust account (the “ Trust Account”) by the prescribed timeline as provided in the Company’s Amended Charter (as defined below). Upon the shareholders’ approval, on January 16, 2026, the Company and the Trustee entered into the amendment to the Trust Agreement. A copy of the amendment to the Trust Agreement (the “ Trust Amendment”) is attached to this Current Report on Form 8-K as Exhibit 10.1 and is incorporated herein by reference. The foregoing description of the Trust Amendment does not purport to be complete and is subject to, and is qualified in its entirety by, the full text of the Trust Amendment.

Item 8.01. Other Events. In connection with the votes to approve the Charter Amendment Proposal, 3,449,851 Ordinary Shares of the Company were rendered for redemption. As a result, the Company has 4,494,439 Ordinary Shares issued and outstanding, including 2,550,149 shares held by public shareholders. Item 9.01Financial Statements and Exhibits.

Item 9.01 Financial Statements and Exhibits. Exhibit No. Description of Exhibits 3.1 Second Amended and Restated Memorandum and Articles of Associate, dated January 16, 2026. 10.1 Amendment to the Investment Management Trust Agreement dated January 16, 2026, between the Company and Continental Stock Transfer & Trust Company. ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── 104 Cover Page Interactive SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Columbus Acquisition Corp By: /s/ Fen Zhang Name: Fen Zhang Title: Chief Executive Officer