Annual Information Update

Annual Information Update ("AIU") for the 12 months up to 20 June 2007 1. Introduction 1.1 Severn Trent Plc (the "Company") published its annual financial statements for the year ended 31 March 2007 on 20 June 2007. 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 06/06/2007 Preliminary Results 01/06/2007 Total Voting Rights 01/06/2007 Director Declaration 14/05/2007 Director Declaration 01/05/2007 Total Voting Rights 03/04/2007 Trading Statement 02/04/2007 Total Voting Rights 21/03/2007 Holding(s) in Company 19/03/2007 Holding(s) in Company 19/03/2007 Holding(s) in Company 16/03/2007 Director/PDMR Shareholding 13/03/2007 Change of Adviser 09/03/2007 Holding(s) in Company 09/03/2007 Holding(s) in Company 06/03/2007 Director/PDMR Shareholding 02/03/2007 Appointment of Directors to Subsidiary Board 28/02/2007 Notice of Preliminary Trading Statement 19/01/2007 Total Voting Rights 15/01/2007 Director Declaration 02/01/2007 Director/PDMR Shareholding 02/01/2007 Disposal 21/12/2006 Voting Rights 20/12/2006 Notice of Results 07/12/2006 Interim Results 15/11/2006 Holding(s) in Company 07/11/2006 Holding(s) in Company 06/11/2006 Disposal 24/10/2006 Director Declaration 13/10/2006 Additional Listing 09/10/2006 Further re demerger and share consolidation 06/10/2006 Result of EGM 03/10/2006 Holding(s) in Company 03/10/2006 Trading Statement 25/09/2006 Disposal 18/09/2006 Director/PDMR Shareholding 13/09/2006 Further re Demerger Announcement 13/09/2006 Demerger Announcement 12/09/2006 Holding(s) in Company 05/09/2006 Holding(s) in Company 04/09/2006 Director/PDMR Shareholding 01/09/2006 Holding(s) in Company 16/08/2006 Directorate Change 07/08/2006 Publication of Prospectus 28/07/2006 Circ re AGM Resolutions 27/07/2006 Results of AGM 20/07/2006 Holding(s) in Company 12/07/2006 Holding(s) in Company 10/07/2006 Holding(s) in Company 04/07/2006 Holding(s) in Company 04/07/2006 Annual Information Update 29/06/2006 Annual Report and Accounts 27/06/2006 Holding(s) in Company 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 15/06/2007 88(2)R Return of allotment of shares 07/06/2007 88(2)R Return of allotment of shares 06/06/2007 88(2)R Return of allotment of shares 29/05/2007 88(2)R Return of allotment of shares 16/05/2007 88(2)R Return of allotment of shares 16/05/2007 88(2)R Return of allotment of shares 16/05/2007 88(2)R Return of allotment of shares 16/05/2007 88(2)R Return of allotment of shares 15/05/2007 88(2)R Return of allotment of shares 15/05/2007 88(2)R Return of allotment of shares 03/05/2007 363a Annual Return 19/04/2007 288a Secretary appointed 13/04/2007 88(2)R Return of allotment of shares 22/03/2007 88(2)R Return of allotment of shares 06/03/2007 88(2)R Return of allotment of shares 06/03/2007 88(2)R Return of allotment of shares 02/03/2007 88(2)R Return of allotment of shares 27/02/2007 88(2)R Return of allotment of shares 19/02/2007 88(2)R Return of allotment of shares 26/01/2007 88(2)R Return of allotment of shares 23/01/2007 88(2)R Return of allotment of shares 02/01/2007 288b Director resigned 29/12/2006 88(2)R Return of allotment of shares 28/12/2006 88(2)R Return of allotment of shares 20/12/2006 88(2)R Return of allotment of shares 12/12/2006 88(2)R Return of allotment of shares 16/12/2005 288a Director appointed 29/11/2006 288c Director's particulars changed 01/12/2006 88(2)R Return of allotment of shares 30/11/2006 88(2)R Return of allotment of shares 30/11/2006 88(2)R Return of allotment of shares 30/11/2006 88(2)R Return of allotment of shares 30/11/2006 88(2)R Return of allotment of shares 30/11/2006 88(2)R Return of allotment of shares 30/11/2006 88(2)R Return of allotment of shares 15/11/2006 122 Share consolidation 15/11/2006 RES10 Resolutions 03/11/2006 88(2)R Return of allotment of shares 03/11/2006 88(2)R Return of allotment of shares 03/11/2006 88(2)R Return of allotment of shares 02/11/2006 88(2)R Return of allotment of shares 23/10/2006 RES09 Resolutions 19/10/2006 88(2)R Return of allotment of shares 17/10/2006 288b Director resigned 17/10/2006 288b Director resigned 11/10/2006 88(2)R Return of allotment of shares 28/09/2006 AA Interim Accounts 08/09/2006 88(2)R Return of allotment of shares 08/09/2006 88(2)R Return of allotment of shares 08/09/2006 88(2)R Return of allotment of shares 05/09/2006 AA Group Accounts for y/e 31/03/2006 30/08/2006 88(2)R Return of allotment of shares 30/08/2006 88(2)R Return of allotment of shares 25/08/2006 88(2)R Return of allotment of shares 17/08/2006 88(2)R Return of allotment of shares 15/08/2006 88(2)R Return of allotment of shares 15/08/2006 88(2)R Return of allotment of shares 11/08/2006 RES09 Resolutions 25/07/2006 88(2)R Return of allotment of shares 25/07/2006 88(2)R Return of allotment of shares 25/07/2006 88(2)R Return of allotment of shares 25/07/2006 88(2)R Return of allotment of shares 21/07/2006 88(2)R Return of allotment of shares 03/07/2006 88(2)R Return of allotment of shares 27/06/2006 88(2)R Return of allotment of shares 27/06/2006 88(2)R Return of allotment of shares 27/06/2006 88(2)R Return of allotment of shares 23/06/2006 88(2)R Return of allotment of shares 23/06/2006 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 06/10/2006 EGM Resolutions (FSA Only) 13/09/2006 Biffa Prospectus (FSA Only) 13/09/2006 Circular and Notice of EGM 13/09/2006 Form of Proxy (EGM) 28/07/2006 AGM Resolutions (FSA Only) 22/06/2006 Severn Trent Plc Annual Report and Accounts 2006 22/06/2006 Severn Trent Plc Annual Review 2006 22/06/2006 Notice of Annual General Meeting 22/06/2006 Form of Proxy (AGM) 5. Contacts For further information, please contact: Kerry Porritt Deputy Secretary 0121 722 4730

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Severn Trent (SVT)
UK 100

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