Publication of Supplementary Prospectus

Severn Trent Plc

Publication of Supplementary Prospectus

The following Supplementary Prospectus has been approved by the UK Listing Authority and is available for viewing:

The Supplementary Prospectus dated 23 November 2017 (the "Supplementary Prospectus") supplements, updates and forms part of the Prospectus dated 21 June 2017 (the "Prospectus") relating to a €6,000,000,000 Euro Medium Term Note Programme of Severn Trent Plc and Severn Trent Utilities Finance Plc as issuers and Severn Trent Water Limited as guarantor of notes issued under the programme by Severn Trent Utilities Finance Plc.

The purpose of this Supplementary Prospectus is to (a) incorporate by reference into the Prospectus interim financial information for Severn Trent Plc for the six months ended 30 September 2017, and (b) update the no significant change statement in the Prospectus.

To view the full document, please paste the following URL into the address bar of your browser:

http://www.rns-pdf.londonstockexchange.com/rns/3835X_1-2017-11-23.pdf

A copy of the Supplementary Prospectus has been submitted to the National Storage Mechanism and will shortly be available for inspection at: www.morningstar.co.uk/uk/NSM

For further information, please contact:

Severn Trent PlcSevern Trent Centre2 St John's StreetCoventry CV1 2LZ

DISCLAIMER - INTENDED ADDRESSEES

Please note that the information contained in the Prospectus may be addressed to and/or targeted at persons who are residents of particular countries (specified in the Prospectus) only and is not intended for use and should not be relied upon by any person outside these countries and/or to whom any offer contained in the Prospectus is not addressed. Prior to relying on the information contained in the Prospectus you must ascertain from the Prospectus whether or not you are part of the intended addressees of the information contained therein.

Your right to access this service is conditional upon complying with the above requirement.