Appointment of Additional Dealer Manager

Santander UK plc Announces Appointment of Additional Dealer Manager

July 5, 2012

On July 3, 2012, Santander UK plc (formerly known as Abbey National plc) (the "Company") announced an offer (the "Offer") to holders of 7.95% Term Subordinated Securities due 2029 issued by of the Company (the 7.95% Securities) and 8.963% Non-Cumulative Trust Preferred Securities issued by Abbey National Capital Trust I (the "8.963% Securities," and together with the 7.95% Securities, the "Securities") to purchase for cash any and all such Securities for the tender offer consideration (the "Tender Offer Consideration") set forth in the table below. The Offer is being made upon the terms and subject to the conditions set forth in the offer to purchase dated July 3, 2012 (the "Offer to Purchase").

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(1) Does not include accrued, but unpaid interest or distributions, as applicable, which will be paid in addition to the Tender Offer Consideration.

Appointment of Santander Investment Securities Inc. as Dealer Manager

On July 5, 2012 the Company appointed Santander Investment Securities Inc. as an additional Dealer Manager for the Offer.

On the same day, the Company published an amended and restated Offer to Purchase to reflect such appointment.

All terms of the Offer and all of the other provisions of the Offer to Purchase remain unchanged.

For additional information regarding the terms of the Offer, please contact the Dealer Managers at Bank of America Merrill Lynch at +1-888-292-0070 (toll-free) or +1-980-683-3215 (collect), Barclays at +1-800-438-3242 (toll-free) or +1-212-528-7581 (collect) and Santander Investment Securities Inc. at +1-212-407-0995 (collect). Requests for documents and questions regarding the tendering of Notes may be directed to Lucid Issuer Services Limited at +44 207 704 0880 or santander@lucid-is.com.

Disclaimer

This announcement does not constitute an invitation to participate in the offer in or from any jurisdiction in or from which, or to or from any person to or from whom, it is unlawful to make such offer under applicable securities, blue sky or other laws. Nothing in this announcement constitutes an offer to buy or the solicitation of an offer to sell securities in:

(i) the United Kingdom (other than to investment professionals as defined in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the "Order"), or to persons within Article 43 of the Order, including existing members and creditors of the Company and any other persons to whom this electronic transmission can be lawfully communicated in circumstances where section 21(1) of the Financial Services and Markets Act 2000 does not apply);

(ii) the Republic of France (other than to providers of investment services relating to third party portfolio management and qualified investors (investisseurs qualifiés) all as defined in, and in accordance with, articles L.411-1, L.411-2 and D.441-1 to D.441-3 of the French Code monétaire et financier);

(iii) Belgium (other than "qualified investors" in the sense of Article 10 of the Belgian Law of June 16, 2006 on the public offer of placement instruments and the admission to trading of placement instruments on regulated markets (as amended or replaced from time to time), acting on their own account); or

(iv) any other jurisdiction in which such offer or solicitation would be unlawful.