Mutual Termination Agreement

USCB Financial Holdings, Inc. and its subsidiary U.S. Century Bank have entered into a mutual termination agreement with Patriot Financial Partners II, L.P. and Patriot Financial Partners Parallel II, L.P. This agreement terminates the rights and obligations set forth in a Side Letter Agreement dated December 30, 2021, specifically concerning Patriot. The terms of the Side Letter Agreement related to Priam Capital Fund II, LP remain in effect. Patriot, which previously beneficially owned 10.2% of the company's Class A Voting Common Stock, has had its representative resign from the Boards of Directors. The termination is effective immediately upon the execution of the agreement. Both parties mutually agreed to this termination, and it does not constitute an admission of liability. Certain provisions regarding indemnification and confidentiality from the original Side Letter Agreement will survive this termination.