Publication of Prospectus

ABBEY NATIONAL TREASURY SERVICES PLC - PUBLICATION OF PROSPECTUS

The following Prospectus has been approved by the UK Listing Authority and is available for viewing:

Prospectus dated 14 April 2010 relating to the Euro 2,000,000,000 Structured Note Programme of Abbey National Treasury Services plc as Issuer of structured notes and guaranteed by Santander UK plc.

http://www.rns-pdf.londonstockexchange.com/rns/3036K_-2010-4-16.pdf

The full Prospectus is available for viewing at the Document Viewing Facility of the UK Listing Authority and also at the offices of the dealers and the agent:

Citibank, N.A. as Agent 21st Floor, Citigroup Centre Canada Square Canary Wharf London EC4Y 0PA

Abbey National Treasury Services plc as Issuer 2 Triton Square Regent's Place London NW1 3AN

Santander UK plc as Guarantor 2 Triton Square Regent's Place London NW1 3AN

For further information, please contact:

Structured Notes Desk

Tel: +44 (0) 20 7756 7000 or [email protected].

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 offer contained in the Prospectus is 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.

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

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