Exhibit 23.3

Independent Registered Public Accounting Firm’s Consent

We consent to the use in this Registration Statement on Form F-4 of our report dated March 19, 2026 relating to the financial statements of Columbus Acquisition Corp appearing in this Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ Marcum Asia CPAs LLP

New York, New York

June 23, 2026

NEW YORK OFFICE ● 7 Penn Plaza ● Suite 830 ● New York, New York ● 10001
Phone 646.442.4845 ● Fax 646.349.5200 ● www.marcumasia.com