Implementation of automatic Trade Deletion functionality in C21®

Project Launch: November 12th and 26th, 2007

Project Launch linked to LIFFE CONNECT® Release 10.0 Launch

As a reminder, Liffe™ NYSE Euronext in cooperation with LCH.Clearnet SA takes the implementation of the new release of LIFFE CONNECT® as an opportunity to develop a new functionality for automatic trade deletion that will replace the current manual procedure in CLEARING 21®.

We draw your attention on the fact that due to the implementation of LIFFE CONNECT® RELEASE 10.0 that will be launched in 2 steps (November 12th in respect of the Equities Trading Host and November 26th, 2007 in respect of the Financials Trading Host), the go-live of the Trade Deletion will also occur on the same dates i.e. in 2 steps:

• As from November 12th, trades executed on the Equity Host will be automatically cancelled. But trades executed on Index products will have to be cancelled manually between November 12th and November 26th, 2007.
• As from November 26th, all trades will automatically be cancelled.

LCH.Clearnet SA is therefore pleased to announce the implementation of the complete automatic Trade Deletion functionality in C21® as from November 26th, 2007.

Reminder about Technical Impacts

Please refer to IF071019 available on LCH.Clearnet’s website.

You will find all the information on the dedicated section implemented on www.lchclearnet.com

For further information, please contact your LCH.Clearnet SA product implementation manager: Dorothée Fresneau: +33 (0) 1 70 37 66 05 dorothee.fresneau@lchclearnet.com or your local relationship manager.

Customer and Market Management LCH.Clearnet SA

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