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4 January 2005

Service Announcement

Trading and London Market Information Link (LMIL)

Irish Securities on SETSmm

Following on from Service Announcement - Live 79/04, and after consultation withmarket participantsand the issuers, the Exchangehas agreed that 3 of the Irish securities which were added to SETSmm with effect from 20 December 2004 will now be traded in Euros rather than Sterling as previously announced.

Details of the relevantsecurities have been attached in Appendix A for your reference and will be effective on Monday 10 January 2005.

Closing Prices

For the securities which will now be trading inEuros (EUR), the GBX closing price onFriday 7 January 2005 will be converted into EUR, using the Bank of England EUR/GBP closing exchange rate.The converted closing price will be re-disseminated once these securities have been re-added to SETSmm.

Administration

Customers will receive a series of 5OB (Tradable Instrument/Currency/Market Segment) messages for each deletion and addition on Friday 7 January 2005.

Customers are advised to take either the Reference Data Changes service Broadcast Data Group B75 on Friday 7 January 2005 or to take the Full reference Data Download Broadcast Data Group B74 on Monday 10 January 2005.

Customers will also receive5SK'Closing Price' messages following the re-dissemination of closing priceson B29 'UK Closing Prices' and B68 'SETSmm Level 1' prices.

Additional Information

If you have any queries or require further information please contact your account manager or the Technical Information Desk on 020 7797 3939 (STX 33939).

An archive of previously issued service announcements is available on the Exchange’s website at www.londonstockexchange.com/techlib

If you would like to amend or add further recipients of service announcements, please send the revised email contact details to

Live 01/05

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