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23rd June 2008

Service Announcement

Production (Live)

Addition of New Market Structure

The purpose of this announcement is to inform you of the addition of the new MTA Market to Production.

The changes will consist of a New Market with the addition of a test Segment and test Sector in Production.

Ten production segments will also be added. These additions will be implemented from Monday 21st July 2008 onwards.

The structure will be added to TradElect as follows:

New Market
Market code / Market name
BIT / ITALIAN MARKETS
New test segment (in Production)
Segment
Segment code / Segment name
BTES / Borsa Italiana test segment
New test sector (in Production)
Sector
Sector code / Sector name
BTES / Borsa Italiana test sector
Default sector schedule
Period Name / Period Start (Local Market) Time
EOD / 18:16
Period rule
Period code / Period name
EOD / BI MKT END OF DAY

The following Production Segments will also be added.

New segments
Exchange / Segment Code / Segment Name
BIT / MB1 / BLUE CHIPS
BIT / MR1 / STAR
BIT / MM1 / MTA INTERNATIONAL
BIT / MS1 / STANDARD 1
BIT / MS2 / STANDARD 2
BIT / MX1 / EXPANDI 1
BIT / MX2 / EXPANDI 2
BIT / M2C / OICR
BIT / M3 / UN-EXERCISED RIGHTS
BIT / M4 / SINGLE AUC SECURITIES

Sector and Period rules for the above Segments will follow in further announcements.

Customers should be aware that messages associated with the new market additions will be broadcast over Infolect from Friday 18th July 2008 onwards as part of reference data changes.

Further 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

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Service Announcement (Live) 23/06

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