The launch of the enhanced SEDOL Masterfile Service, including the introduction of alphanumeric SEDOL codes, has been changed from the 26 January 2004.   The revised go-live date, which will be issued on Friday 23 January 2004, will not be significantly later than planned.

The Exchange has taken the precaution of changing the launch date following a very high level of demand for access to the new SEDOL Masterfile website.  In the meantime, additional testing will be carried out to ensure a seamless transition to the new service, which is important to the smooth running of the market.

Some customers have expressed concerns with their readiness for the enhancements by 26 January. Therefore, rescheduling the live date will also allow our customers further time to prepare for the change.

The Exchange will have sufficient numeric codes to continue issuing SEDOL codes up to the revised live date and the existing service will continue to operate until the migration to the new SEDOL Masterfile service.  Your existing data suppliers will continue to receive the current SMF service as they do today.

Please note customers that have already signed their licence will not be invoiced until the service goes live and those customers that have not yet signed a licence will be required to do so by the revised live date.

Should you have any queries about this announcement please contact your account manager or the SEDOL Helpdesk on +44 (0) 20 7797 3009 (STX 33009) or email sedol@londonstockexchange.com

David Lester
Chief Information Officer