WOLVERINE ASSET MANAGEMENT LLC Ownership Filing

Wolverine Asset Management LLC, along with Wolverine Holdings, L.P., Wolverine Trading Partners, Inc., Christopher L. Gust, and Robert R. Bellick, collectively hold 169,777 Ordinary Shares of Columbus Acquisition Corp./Cayman Islands, representing 2.13% of the outstanding shares. This ownership is based on the Issuer's outstanding Ordinary Shares as of November 6, 2025, as reported in their September 30, 2025 Form 10-Q. Wolverine Asset Management LLC, as the investment manager, has shared voting and dispositive power over these shares. Wolverine Holdings, L.P. is the sole member and manager of Wolverine Asset Management LLC, and Robert R. Bellick and Christopher L. Gust may be deemed to control Wolverine Trading Partners, Inc., which is the general partner of Wolverine Holdings. The filing also notes that Wolverine Flagship Fund Trading Limited has the right to receive dividends or proceeds from the sale of these shares. All reporting persons certify that the securities were acquired and are held in the ordinary course of business and not for the purpose of influencing the control of the issuer.