Annual Information Update

Annual Information Update ("AIU") for the 12 months up to 18 June 2008 1. Introduction 1.1 Severn Trent Plc (the "Company") published its annual financial statements for the year ended 31 March 2008 on 18 June 2008. 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 18/06/2008 Annual Report and Annual General Meeting 06/06/2008 Director/PDMR Shareholding 05/06/2008 Preliminary Results 02/06/2008 Total Voting Rights 14/05/2008 Director/PDMR Shareholding 07/05/2008 Block Listing - Interim Review 01/05/2008 Total Voting Rights 16/04/2008 Director Declaration 08/04/2008 Response to Ofwat Statement 08/04/2008 Statement re Serious Fraud Office 02/04/2008 Trading Statement 01/04/2008 Total Voting Rights 17/03/2008 Director/PDMR Shareholding 17/03/2008 Director Declaration 17/03/2008 Director Declaration 11/03/2008 Publication of Final Terms (Severn Trent Utilities Finance Plc) 11/03/2008 Issue of Debt (Severn Trent Utilities Finance Plc) 03/03/2008 Total Voting Rights 29/02/2008 Directorate Change 04/02/2008 Holdings in Company 01/02/2008 Total Voting Rights 29/01/2008 Interim Management Statement 08/01/2008 Director/PDMR Shareholding 03/01/2008 Total Voting Rights 20/12/2007 Holdings in Company 10/12/2007 Holdings in Company 03/12/2007 Total Voting Rights 27/11/2007 Directorate Change 27/11/2007 Half Yearly Report 23/11/2007 Statement re Serious Fraud Office 01/11/2007 Total Voting Rights 01/11/2007 Block Listing - Interim Review 31/10/2007 Investor Day 19/10/2007 Holding(s) in Company 02/10/2007 Directorate Changes 02/10/2007 Trading Statement 01/10/2007 Total Voting Rights 17/09/2007 Director/PDMR Shareholding 11/09/2007 Additional Listing 03/09/2007 Total Voting Rights 08/08/2007 Statement Re Impact of Flooding July 2007 03/08/2007 Publication of Prospectus 03/08/2007 Circ re AGM Resolutions 02/08/2007 Total Voting Rights 30/07/2007 Block Listing - Interim Review 24/07/2007 AGM Statement 24/07/2007 Interim Management Statement 18/07/2007 Director/PDMR Shareholding 06/07/2007 Annual Information Update 03/07/2007 Total Voting Rights 25/06/2007 Annual Report and Accounts and Notice of AGM 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 22/05/2008 88(2)R Return of allotment of shares 07/05/2008 88(2)R Return of allotment of shares 29/04/2008 363a Annual Return 23/04/2008 88(2)R Return of allotment of shares 03/04/2008 353 Location of Register of Members 03/04/2008 88(2)R Return of allotment of shares 15/03/2008 288a Appointment of director 15/03/2008 288a Appointment of director 15/03/2008 288b Resignation of director 05/03/2008 88(2)R Return of allotment of shares 19/02/2008 88(2)R Return of allotment of shares 31/01/2008 88(2)R Return of allotment of shares 24/01/2008 88(2)R Return of allotment of shares 23/01/2008 88(2)R Return of allotment of shares 10/01/2008 88(2)R Return of allotment of shares 10/01/2008 88(2)R Return of allotment of shares 10/01/2008 88(2)R Return of allotment of shares 27/11/2007 88(2)R Return of allotment of shares 12/11/2007 88(2)R Return of allotment of shares 12/11/2007 88(2)R Return of allotment of shares 06/11/2007 88(2)R Return of allotment of shares 05/11/2007 88(2)R Return of allotment of shares 05/11/2007 88(2)R Return of allotment of shares 25/10/2007 88(2)R Return of allotment of shares 08/10/2007 288a Appointment of director 08/10/2007 288a Appointment of director 08/10/2007 288a Appointment of director 02/10/2007 288b Resignation of director 11/09/2007 88(2)R Return of allotment of shares 10/09/2007 AA Group Accounts for y/e 31/03/2007 23/08/2007 88(2)R Return of allotment of shares 09/08/2007 RES11 Resolutions 31/07/2007 88(2)R Return of allotment of shares 17/07/2007 88(2)R Return of allotment of shares 17/07/2007 88(2)R Return of allotment of shares 13/07/2007 88(2)R Return of allotment of shares 13/07/2007 88(2)R Return of allotment of shares 13/07/2007 88(2)R Return of allotment of shares 13/07/2007 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 18/06/2008 Severn Trent Plc Annual Report and Accounts 2008 18/06/2008 Shareholder Summary 2008 18/06/2008 Notice of Annual General Meeting 2008 18/06/2008 Form of Proxy (2008 AGM) 03/08/2007 AGM Resolutions (FSA Only) 22/06/2007 Severn Trent Plc Annual Report and Accounts 2007 22/06/2007 Severn Trent Plc Annual Review 2007 22/06/2007 Notice of Annual General Meeting 2007 22/06/2007 Form of Proxy (2007 AGM) 5. Contacts For further information, please contact: Kerry Porritt Deputy Secretary 0121 722 4730

Companies

Severn Trent (SVT)
UK 100