31 October 2008

Service Announcement

Production (Live)

AIM Italia launch date 1st December

The purpose of this announcement is to inform you of the addition of the new AIM Italia market structure in Production. The addition of the AIM Italia market structure to CDS was announced in Service Announcement 115/08.

Further to Service Announcement 115/08, the new market consists of three new segments, thirteen new sectors and four new period rules which will all be added to Production on the evening of Friday 28th November 2008.

The segments and sectors are as follows:

Segment code / Segment name
MA1 / AIM Italia 1
MA2 / AIM Italia 2
MA3 / AIM Italia 3
Sector code / Sector name / Segment code
AI1S / AIM ITALIA Shares / MA1
AI1W / AIM ITALIA Warrants / MA1
AI1C / AIM ITALIA Conv. Bonds / MA1
AI1R / AIM ITALIA Pre-Emptive Rights / MA1
AI1I / AIM ITALIA Investment Co’s / MA1
AI1X / AIM ITALIA Instrument NO MO / MA1
AI2S / AIM ITALIA Shares / MA2
AI2W / AIM ITALIA Warrants / MA2
AI2C / AIM ITALIA Conv. Bonds / MA2
AI2R / AIM ITALIA Pre-Emptive Rights / MA2
AI2I / AIM ITALIA Investment Co’s / MA2
AI2X / AIM ITALIA Instrument NO MO / MA2
AIUR / AIM ITALIA Unex Auc Rights / MA3

The period rules to be added to TradElect are as follows:

Period Name / Description
ACDM / BI DAY AUC MO
VLDM / BI DAY VALID MO
PXDM / BI DAY VO_AUC MO
CANM / BI POST CLOSE

Customers should be aware that messages associated with the new segment, sector and period rule additions will be broadcast over MDF/DDMplus and Infolect from Friday 28th November 2008 as part of reference data changes.

For further information on the above segments please refer to the market configuration matrix, available at www.bitsystems.it

A communication on the process for admission to trading in production will follow.

Further Information

If you have any queries or require further information please contact your account manager in Milan or London, the BIt Systems Desk on 00 800 26772000 or the Technical Information Desk in London on 020 7797 3939 (STX 33939).

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

Service Announcement (Live) 117/08

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