RNS ANNOUNCEMENT

Publication of Final Terms

The following Final Terms under the €5 billion Global Covered Bond Programme of Principality Building Society are available for viewing

£500,000,000 Floating Rate Series 1 Covered Bonds due January 2031

The Final Terms should be read in conjunction with the Prospectus dated 19 December 2025, relating to the Programme (the Prospectus).

To view the full Final Terms documents, please paste the following URL into the address bar of your browser.

https://www.principality.co.uk/getmedia/3cb500fb-74d7-40b4-804a-1b9e0786dc18/Final-Terms-2026-issue-1.pdf

The Final Terms have 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:

Principality Building Society

The Friary

Cardiff

CF10 3FA

United Kingdom

Telephone:       07702817255

Email:              [email protected]

DISCLAIMER - INTENDED ADDRESSEES

Please note that the information contained in the Final Terms may be addressed to and/or targeted at persons who are residents of particular countries (specified in 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 Final Terms is not addressed.  Prior to relying on the information contained in the Final Terms you must ascertain from the Final Terms whether or not you are part of the intended addressees of the information contained therein.

In particular, the Final Terms does not constitute an offer of securities for sale in the United States.  This is not for distribution 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 are subject to U.S. tax law requirements.  Subject to certain exceptions, the 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 the securities in the United States.

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