Annual Information Update

Annual Information Update ("AIU") for the 12 months up to 22June 2006 1. Introduction 1.1 Severn Trent Plc (the "Company") published its annual financial statements for the year ended 31 March 2006 on 22 June 2006. This AIU is made in accordance with the requirements of Prospectus Rule 5.2 and not for any other purpose. The information referred to below is not necessarily up-to-date as at the date of this AIU and the Company does not undertake any obligation to update any such information in the future. 1.2 This AIU contains a list of: * Announcements made via a Regulatory Information Service ("RIS"); * Documents filed with the UK Registrar of Companies ("Companies House"); * Documents filed with the Financial Services Authority; and * Documents published and sent to shareholders. 1.3 The Company is publishing the AIU via an RIS today and making it available on its website at www.severntrent.com 2. Regulatory Announcements 2.1 The following regulatory announcements have been made by the Company via an RIS during the previous 12 months. Copies of these announcements can be viewed at the London Stock Exchange's website at www.londonstockexchange.com/en-gb/ pricesnews/marketnews and on the Company's website at www.severntrent.com These announcements have also been notified to the US Securities and Exchange Commission. Date of Publication Regulatory Headline 20/06/2006 Director/PDMR Shareholding 15/06/2006 Holding(s) in Company 14/06/2006 Additional Listing 08/06/2006 Response to Ofwat Announcement 07/06/2006 Correction: Final Results 06/06/2006 Final Results 02/06/2006 Directorate Change 02/06/2006 Director Declaration 12/05/2006 Disposal 12/05/2006 Holding(s) in Company 11/05/2006 Statement Re New Biffa Chairman 09/05/2006 Blocklisting Interim Review 04/05/2006 Holding(s) in Company 07/04/2006 Miscellaneous: Provision of Interim Report to Ofwat 04/04/2006 Demerger Announcement 04/04/2006 Pre-Close Period Trading Update 31/03/2006 Directorate Change 07/03/2006 Response to Ofwat Interim Report 02/03/2006 Holding(s) in Company 09/02/2006 Holding(s) in Company 09/02/2006 Holding(s) in Company 24/01/2006 Holding(s) in Company 12/01/2006 Director/PDMR Shareholding 20/12/2005 Director Declaration 19/12/2005 Directorate Change 19/12/2005 Holding(s) in Company 19/12/2005 Director Declaration 13/12/2005 Holding(s) in Company 06/12/2005 Interim Results 06/12/2005 Directorate Change 01/11/2005 Blocklisting - Interim Review 31/10/2005 Statement re OFWAT Investigation 03/10/2005 Pre-Close Period Trading Statement 30/09/2005 Director/PDMR Shareholding 18/09/2005 Statement re IFRS 14/09/2005 Director/PDMR Shareholding 08/09/2005 Holding(s) in Company 06/09/2005 LTIP Award to Plc Directors and PDMRs 22/08/2005 Additional Listing 04/08/2005 Director/PDMR Shareholding 01/08/2005 Holding(s) in Company 29/07/2005 Circ re AGM Resolutions 29/07/2005 Director/PDMR Shareholding 28/07/2005 Results of AGM 25/07/2005 Holding(s) in Company 21/07/2005 Directorate Change 14/07/2005 Holding(s) in Company 14/07/2005 Director Shareholding 24/06/2005 Annual Report and Accounts 3. Documents filed with the Registrar of Companies 3.1 The following documents have been filed by the Company with the Registrar of Companies at Companies House during the previous 12 months. Copies of these documents may be obtained from Companies House Crown Way Cardiff CF14 3UZ Tel: Email:enquiries@companies-house.gov.uk Or, if you are a registered user, through Companies House Direct at www.direct.companieshouse.gov.uk Date Type Description 20/06/2006 288b Director Resigned 21/06/2006 88(2)R Return of allotment of shares 14/06/2006 88(2)R Return of allotment of shares 14/06/2006 88(2)R Return of allotment of shares 14/06/2006 88(2)R Return of allotment of shares 14/06/2006 88(2)R Return of allotment of shares 01/06/2006 88(2)R Return of allotment of shares 01/06/2006 88(2)R Return of allotment of shares 19/05/2006 88(2)R Return of allotment of shares 18/05/2006 88(2)R Return of allotment of shares 17/05/2006 88(2)R Return of allotment of shares 17/05/2006 88(2)R Return of allotment of shares 17/05/2006 88(2)R Return of allotment of shares 16/05/2006 363s Annual Return 21/04/2006 288b Director Resigned 11/04/2006 288c Change of Director's address 11/04/2006 288c Change of Director's address 15/03/2006 88(2)R Return of allotment of shares 15/03/2006 88(2)R Return of allotment of shares 02/03/2006 88(2)R Return of allotment of shares 02/03/2006 88(2)R Return of allotment of shares 02/03/2006 88(2)R Return of allotment of shares 17/02/2006 88(2)R Return of allotment of shares 07/02/2006 288a Secretary appointed 06/02/2006 288b Secretary resigned 30/01/2006 88(2)R Return of allotment of shares 30/01/2006 88(2)R Return of allotment of shares 30/01/2006 88(2)R Return of allotment of shares 30/01/2006 88(2)R Return of allotment of shares 30/01/2006 88(2)R Return of allotment of shares 30/01/2006 88(2)R Return of allotment of shares 20/01/2006 88(2)R Return of allotment of shares 10/01/2006 288a Director appointed 10/01/2006 288a Director appointed 10/01/2006 88(2)R Return of allotment of shares 10/01/2006 88(2)R Return of allotment of shares 16/12/2005 288a Director appointed 15/12/2005 288b Director resigned 01/12/2005 88(2)R Return of allotment of shares 24/11/2005 88(2)R Return of allotment of shares 11/11/2005 88(2)R Return of allotment of shares 11/11/2005 88(2)R Return of allotment of shares 11/11/2005 88(2)R Return of allotment of shares 11/11/2005 88(2)R Return of allotment of shares 10/11/2005 88(2)R Return of allotment of shares 24/10/2005 88(2)R Return of allotment of shares 23/09/2005 88(2)R Return of allotment of shares 21/09/2005 88(2)R Return of allotment of shares 21/09/2005 88(2)R Return of allotment of shares 15/09/2005 88(2)R Return of allotment of shares 15/09/2005 88(2)R Return of allotment of shares 15/09/2005 88(2)R Return of allotment of shares 15/09/2005 88(2)R Return of allotment of shares 01/09/2005 288b Director resigned 06/09/2005 88(2)R Return of allotment of shares 06/09/2005 88(2)R Return of allotment of shares 18/08/2005 88(2)R Return of allotment of shares 18/08/2005 88(2)R Return of allotment of shares 18/08/2005 88(2)R Return of allotment of shares 12/08/2005 88(2)R Return of allotment of shares 12/08/2005 AA Group Accounts for y/e 31/03/05 10/08/2005 RES08 Resolutions 10/08/2005 AUD Auditors resignation 01/08/2005 88(2)R Return of allotment of shares 4. Documents filed with the Financial Services Authority and sent to shareholders 4.1 The following documents have been filed by the Company with the Financial Services Authority and sent to shareholders during the previous 12 months. These documents may be viewed at the UK Listing Authority's Document Viewing Facility at 25 The North Colonnade, Canary Wharf, London E14 5HS. Copies of these documents are also available on request from the Company's registered office at 2297 Coventry Road, Birmingham, B26 3PU. Date Document 24/06/2005 Severn Trent Plc Annual Report and Accounts 2005 24/06/2005 Severn Trent Plc Annual Review 2005 24/06/2005 Notice of Annual General Meeting 24/06/2005 Form of Proxy 29/07/2005 AGM Resolutions (FSA Only) 5. Contacts For further information, please contact: David Chettle Senior Assistant Company Secretary 0121 722 4543

Companies

Severn Trent (SVT)
UK 100