Item 3.01. Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On July 28, 2026, Columbus Acquisition Corp, a Cayman Islands exempted company (the “ Company”) received a notification letter from the Listing Qualifications Department of The Nasdaq Stock Markets (“Nasdaq”) stating that the Nasdaq staff had determined to grant the Company an extension of time through November 18, 2026 to regain compliance with Listing Rule 5450 (a)(2) (the “Minimum Holders Rule”).