1. LCH.Clearnet Ltd has revised the London SPAN parameters as marked in bold and italic on the attached document. These changes will take place with effect from close of business Thursday 18 May 2006 and will be reflected in margin calls made on Friday 19 May 2006. This circular supersedes circular LCH.Clearnet/ 2028; LCH EnClear / 131 dated 12 May 06.
   
   
2. The Scanning Ranges for Brent First Line Swap and WTI First Line Swap have been changed.
   
   
3. Details of the current London SPAN Parameters, for all contracts, can be found on the LCH.Clearnet Ltd website (www.lchclearnet.com) by selecting ‘Limited’. Details can then be found under the ‘Risk & Margining’ section. Alternatively, details of margin rates are available on TRS under option 3 by inputting $Margin.
   
   
4. For further information please contact the following:
5. 
   
   

   Risk Operations

   020 7426 7520

Christopher Jones
Director and Head of Risk Management

EnClear Margin Rate Spreadsheet