Issue 1233 and 1234 Early Redemption Notice

Company Announcement

For immediate release

16 September 2024

NOTICE OF REDEMPTION

Santander UK plc (the "Issuer")

This notice relates to the following securities (the "Securities") issued by the Issuer on 12 September 2023 pursuant to the prospectus for its Structured Note and Certificate Programme dated 17 March 2023 (the "Base Prospectus") and the final terms dated 5 June 2023 (the "Final Terms"):

Notice is hereby given to the Securityholders that the Trigger Condition (as such term is defined in the Share Issue Terms relating to the Preference Shares) was satisfied on 12 September 2024. Consequently, in accordance with the provisions of Part A, Paragraph 22 of the Final Terms (Provisions relating to Preference Share Linked Redemption) and N&C Security Condition 6.1 (Redemption at maturity), the Securities will redeem on 26 September 2024 (the "Redemption Date").

The Issuer will request the Financial Conduct Authority to remove the Securities from the Official List and the London Stock Exchange to remove the Securities detailed from its main market following the Redemption Date.

For further information, please contact:

Structured Notes

Email: [email protected]

Defined terms used in this notice and not defined herein shall have the meanings ascribed to them in the Final Terms.

DISCLAIMER - INTENDED ADDRESSEES

Please note that the information contained in the Base Prospectus and the Final Terms may be addressed to and/or targeted at persons who are residents of particular countries (specified in the Base Prospectus and/or the Final Terms) only and is not intended for use and should not be relied upon by any person outside these countries and/or to whom the offer contained in the Base Prospectus and/or the Final Terms is not addressed. Prior to relying on the information contained in the Base Prospectus and/or the Final Terms, you must ascertain from the Base Prospectus and/or the Final Terms whether or not you are part of the intended addressees of the information contained therein.

Your right to access this service is conditional upon complying with the above requirement.

The Final Terms referenced herein does not constitute an offer of securities for sale in the United States. The securities described herein have not been, and will not be, registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), or under any relevant securities laws of any state of the United States of America, and may not be offered or sold to U.S. persons or to persons within the United States of America, except pursuant to an exemption from the Securities Act.

END