AIB Shares in ISA Investments

Allied Irish Banks, p.l.c. ("AIB") [NYSE:AIB]

AIB shares held in ISA Investments

AIB's planned delisting from the London Stock Exchange from the close of business on 25th January 2011 may have implications for AIB shareholders who hold such shares through ISA investments. Such shareholders should contact their ISA manager/broker in advance of the delisting.

Mr. David O'Callaghan,

Company Secretary,

Allied Irish Banks, p.l.c.,

Bankcentre,

Ballsbridge, Dublin 4.

(+353 1 660 0311)