Publication of Supplement to Prospectus

TSB Banking Group plc LEI: 213800KWCGLFG9WZDX35

TSB Bank plc LEI: 549300XP222MV7P3CC54

The following supplementary prospectus produced in connection with the £2,000,000,000 Euro Medium Term Note Programme of TSB Banking Group plc and the £2,000,000,000 Euro Medium Term Note Programme of TSB Bank plc has been approved by the Financial Conduct Authority and is available for viewing:

Supplementary Prospectus dated 27 February 2026 (the "Supplement") relating to the £2,000,000,000 Euro Medium Term Note Programme of TSB Banking Group plc and the £2,000,000,000 Euro Medium Term Note Programme of TSB Bank plc.

The Supplement should be read and construed in conjunction with the base prospectus dated 5 June 2025 relating to the £2,000,000,000 Euro Medium Term Note Programme of TSB Banking Group plc and the £2,000,000,000 Euro Medium Term Note Programme of TSB Bank plc (as so supplemented, the "Prospectus").

To view the Supplement, please paste the following URL into the address bar of your browser.

http://www.rns-pdf.londonstockexchange.com/rns/7773U_1-2026-2-27.pdf

The Supplement has been submitted to the National Storage Mechanism and will shortly be available for inspection at: https://data.fca.org.uk/#/nsm/nationalstoragemechanism

For further information, please contact:

Gina Bouette

Treasury Legal

TSB Bank plc

Email:               [email protected]

Telephone:        +44 (0)7919014843

DISCLAIMER - INTENDED ADDRESSEES

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

In particular, this announcement and the Prospectus do not constitute an offer or invitation to subscribe for, or purchase, securities in the United States or in any other jurisdiction where such an offer or invitation would be unlawful. This announcement and the Prospectus are not for distribution in the United States. Any securities issued pursuant to the Prospectus 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 are subject to U.S. tax law requirements. Subject to certain exceptions, such securities may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons or to persons within the United States of America, as such terms are defined in Regulation S under the Securities Act. There will be no public offering of securities in the United States. For a description of the restrictions on offers and sales of securities issued pursuant to the Prospectus, please refer to the Prospectus.

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