Tidal Trust III 485BPOS

Exhibit 99.(g)(i)(xi)

ELEVENTH AMENDMENT TO THE

TIDAL TRUST III

CUSTODY AGREEMENT

THIS ELEVENTH AMENDMENT effective as of August 1, 2025 (the “Effective Date”), to the Custody Agreement dated as of July 11, 2024, as amended (the “Agreement”), is entered into by and between TIDAL TRUST III, a Delaware statutory trust (the “Trust”), and U.S. BANK NATIONAL ASSOCIATION, a national banking association organized and existing under the laws of the United States of America with its principal place of business at Minneapolis, Minnesota (the “Custodian”).

RECITALS

WHEREAS, the parties have entered into the Agreement; and

WHEREAS, the parties desire to amend the Agreement to update Exhibit A to:

Add the following funds:

Remove the following fund:

Reflect the following name changes:

WHEREAS, Section 15.02 of the Agreement allows for its amendment by a written instrument executed by both parties and authorized or approved by the Board of Trustees of the Trust.

NOW, THEREFORE, the parties agree as follows:

Exhibit A of the Agreement is hereby superseded and replaced in its entirety with Exhibit A attached hereto.

Except to the extent amended hereby, the Agreement shall remain in full force and effect.

SIGNATURES ON NEXT PAGE

IN WITNESS WHEREOF, the parties hereto have caused this Eleventh Amendment to be executed by a duly authorized officer on one or more counterparts as of the Effective Date. 

Exhibit A to the Custody Agreement

Separate Series of Tidal Trust III

Name of Series: