NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN OR INTO OR TO ANY PERSON LOCATED OR RESIDENT IN THE UNITED STATES OF AMERICA, ITS TERRITORIES AND POSSESSIONS, ANY STATE OF THE UNITED STATES OF AMERICA OR THE DISTRICT OF COLUMBIA OR INTO ANY OTHER JURISDICTION OR TO ANY OTHER PERSON WHERE OR TO WHOM IT IS UNLAWFUL TO RELEASE, PUBLISH OR DISTRIBUTE THIS DOCUMENT.

THIS NOTICE CONTAINS IMPORTANT INFORMATION OF INTEREST TO THE REGISTERED AND BENEFICIAL OWNERS OF THE NOTES (AS DEFINED BELOW).

If you are in any doubt as to the action you should take, you are recommended to seek your own financial advice immediately from your stockbroker, bank manager, solicitor, accountant or other financial adviser authorised under the Financial Services and Markets Act 2000 (if you are in the United Kingdom), or from another appropriately authorised independent financial adviser and such other professional advice from your own professional advisors as you deem necessary.

ECONOMIC MASTER ISSUER PLC

(LEI: 635400KXONN4J3OEOG29)

Residential Mortgage-Backed Note Programme

London, 3 July 2025

Economic Master Issuer plc (the "Issuer") is pleased to inform that it has issued £500,000,000.00 Regulation S mortgage-backed floating rate Series 2025-1 Class A Notes due April 2075 with ISIN: XS3083792302 (the "Notes"), pursuant to its residential mortgage-backed note programme (the "Programme") established on 31 July 2020, as amended and/or restated from time to time.

The final terms in respect of the Notes are dated 3 July 2025 (the "Final Terms"). The Final Terms have been submitted to the National Storage Mechanism and are available for inspection (subject to securities laws) at https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

The Final Terms are to be read in conjunction with the base prospectus in respect of the Programme.

Application has been made to the FCA for the Notes to be listed on the Official List and to the London Stock Exchange plc for the Notes to be admitted to trading on its regulated market. The Issuer is expecting such listing and admission to be effective on or about 4 July 2025.

For enquiries, please contact:

Economic Master Issuer plc

10th Floor

5 Churchill Place

London

E14 5HU

Email: [email protected]