Allied Irish Banks, p.l.c. announces delisting from the NYSE

For Immediate Release 26(th) August 2011

Allied Irish Banks, p.l.c. announces delisting from the NYSE

Following previous announcements on 4 August and 16 August 2011, Allied Irish Banks, p.l.c. ("AIB") (NYSE: AIB) announces that its American Depositary Shares ("ADSs") have now been deemed to be delisted and have ceased to be traded on the New York Stock Exchange.

Following delisting, AIB intends to terminate the ADS facility by terminating the ADS deposit agreement between AIB and the Bank of New York Mellon as depositary (the "Depositary"). The Depositary will contact ADS holders in due course with further information, including with regard to any further action to be taken. Following delisting and prior to termination of the Deposit Agreement, AIB's ADS will trade over the counter in the United States.

In due course, AIB also intends to deregister its securities and terminate its obligations under the US Securities Exchange Act of 1934 (the "Exchange Act") by filing a Form 15F.

Information required to be made available pursuant to Rule 12g3-2(b) under the Exchange Act will be made available on AIB's website at www.aibgroup.com.

AIB's ordinary shares will continue to trade on the Enterprise Securities Market of the Irish Stock Exchange.

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Forward-Looking Statements

This announcement may contain "forward-looking statements", which can be identified by the fact that they do not relate only to historical or current facts. All statements other than statements of historical fact are, or may be deemed to be, forward-looking statements and speak only as of the date of this announcement. AIB expressly disclaims any obligation or undertaking to publicly release any announcements or revisions to any forward-looking statement contained in this announcement with regard to any change in events, conditions or circumstances on which any such statement is based.

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(i) the releases contained herein are protected by copyright and other applicable laws; and

(ii) they are solely responsible for the content, accuracy and originality of the information contained therein.

Source: Allied Irish Banks, p.l.c. via Thomson Reuters ONE

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For further information, please contact: Alan Kelly Director of Corporate Affairs & Marketing AIB Group Dublin Tel: [phone] email: Email Contact Ronan Sheridan Press Officer AIB Group Dublin Tel: [phone] email: Email Contact