Annual Information Update

Weir Group PLC 11 April 2006 The Weir Group PLC. 11 April 2006 ANNUAL INFORMATION UPDATE The Weir Group PLC (the 'Company') is pleased to provide an annual information update, in accordance with the requirements of the Prospectus Rule 5.2. This update refers to information that has been published or made available by the Company to the public to the public over the 52 weeks to 10 April 2006. To avoid an unnecessarily lengthy document, information is referred to in this update rather than included in full. The information referred to in this update was up to date at the time the information was published but some information may now be out of date. 1. Regulatory Announcements The following UK regulatory announcements have been made through RNS, a Regulatory Information Service. Date Description of Document 05 Apr, 2006 Annual Report and Accounts 05 Apr, 2006 6 Month Return 04 Apr, 2006 Director/PDMR Shareholding 04 Apr, 2006 Director/PDMR Shareholding 21 Mar, 2006 Holding(s) in Company 21 Mar, 2006 Board Appointment 21 Mar, 2006 Final Results 16 Mar, 2006 Holding(s) in Company 08 Mar, 2006 Holding(s) in Company 28 Feb, 2006 Holding(s) in Company 15 Feb, 2006 Holding(s) in Company 10 Feb, 2006 Holding(s) in Company 25 Jan, 2006 Holding(s) in Company 19 Jan, 2006 Statement re Share Repurchase 18 Jan, 2006 Trading Statement 12 Jan, 2006 Statement re Trading Update 03 Jan, 2006 Change of Registered Office 14 Dec, 2005 Notice of Results 30 Nov, 2005 Holding(s) in Company 18 Nov, 2005 Director/PDMR Shareholding 20 Oct, 2005 Additional Listing 14 Oct, 2005 Holding(s) in Company 13 Oct, 2005 Transaction in Own Shares 03 Oct, 2005 Holding(s) in Company 03 Oct, 2005 Further re Acquisition 03 Oct, 2005 6 month return 28 Sep, 2005 Transaction in Own Shares 15 Sep, 2005 Further re Disposal 14 Sep, 2005 Director/PDMR Shareholding 13 Sep, 2005 Transaction in Own Shares 09 Sep, 2005 Holding(s) in Company 08 Sep, 2005 Holding(s) in Company 30 Aug, 2005 Additional Listing 26 Aug, 2005 Holding(s) in Company 18 Aug, 2005 Interim Results 15 Aug, 2005 Acquisition 14 Jul, 2005 Holding(s) in Company 08 Jul, 2005 Disposal 04 Jul, 2005 Holding(s) in Company 01 Jul, 2005 Director/PDMR Shareholding 01 Jul, 2005 Share Buy-back 01 Jul, 2005 Adoption of IFRS 28 Jun, 2005 Transaction in Own Shares 27 Jun, 2005 Transaction in Own Shares 24 Jun, 2005 Transaction in Own Shares 23 Jun, 2005 IFRS Presentation 20 Jun, 2005 Transaction in Own Shares 20 Jun, 2005 Transaction in Own Shs-Amend 20 Jun, 2005 Holding(s) in Company 17 Jun, 2005 Transaction in Own Shares 07 Jun, 2005 Transaction in Own Shares 06 Jun, 2005 Transaction in Own Shares 02 Jun, 2005 Transaction in Own Shares 26 May, 2005 Transaction in Own Shares 24 May, 2005 Transaction in Own Shares 18 May, 2005 Transaction in Own Shares 12 May, 2005 Doc re. resolutions passed 12 May, 2005 Result of AGM 11 May, 2005 Transaction in Own Shares 11 May, 2005 AGM Statement 29 Apr, 2005 Transaction in Own Shares 27 Apr, 2005 Transaction in Own Shares 22 Apr, 2005 Transaction in Own Shares 21 Apr, 2005 Transaction in Own Shares 20 Apr, 2005 Transaction in Own Shares 19 Apr, 2005 Transaction in Own Shares 18 Apr, 2005 Transaction in Own Shares 14 Apr, 2005 Holding(s) in Company 11 Apr, 2005 Transaction in Own Shares Copies of the above announcements can be downloaded from the London Stock Exchange's website, www.londonstockexchange.com/marketnews or from the Company's website, www.weir.co.uk. 2. Documents Filed at Companies House All of the documents listed below were filed with Companies House on or around the dates indicated. Date Description of Document 07/04/2006 Return of Allotment of Shares 30/03/2006 Return of Allotment of Shares 30/03/2006 Return of Allotment of Shares 25/03/2006 Return of Allotment of Shares 23/03/2006 Return of Allotment of Shares 23/03/2006 Return of Allotment of Shares 10/02/2006 Return of Allotment of Shares 09/02/2006 Return of Allotment of Shares 27/01/2006 Return of Allotment of Shares 21/01/2006 Return of Allotment of Shares 21/01/2006 Return of Allotment of Shares 21/01/2006 Return of Allotment of Shares 21/01/2006 Return of Allotment of Shares 20/01/2006 Return of Allotment of Shares 20/01/2006 Return of Allotment of Shares 19/01/2006 Return of Allotment of Shares 19/01/2006 Return of Allotment of Shares 18/01/2006 Return of Allotment of Shares 13/01/2006 Return of Allotment of Shares 12/01/2006 Return of Allotment of Shares 11/01/2006 Return of Allotment of Shares 11/01/2006 Return of Allotment of Shares 10/01/2006 Return of Allotment of Shares 10/01/2006 Return of Allotment of Shares 10/01/2006 Return of Allotment of Shares 10/01/2006 Return of Allotment of Shares 05/01/2006 Return of Allotment of Shares 03/01/2006 Change in Registered Office 23/12/2005 Return of Allotment of Shares 23/12/2005 Return of Allotment of Shares 22/12/2005 Return of Allotment of Shares 20/12/2005 Return of Allotment of Shares 13/12/2005 Return of Allotment of Shares 08/12/2005 Return of Allotment of Shares 07/12/2005 Return of Allotment of Shares 07/12/2005 Return of Allotment of Shares 07/12/2005 Return of Allotment of Shares 30/11/2005 Return of Allotment of Shares 29/11/2005 Return of Allotment of Shares 24/11/2005 Return of Allotment of Shares 18/11/2005 Return of Allotment of Shares 16/11/2005 Return of Allotment of Shares 11/11/2005 Return of Allotment of Shares 10/11/2005 Return of Allotment of Shares 08/11/2005 Return of Allotment of Shares 08/11/2005 Return of Allotment of Shares 07/11/2005 Return of Allotment of Shares 03/11/2005 Resignation of Director 03/11/2005 Return of Allotment of Shares 03/11/2005 Purchase of Own Shares 25/10/2005 Purchase of Own Shares 24/10/2005 Return of Allotment of Shares 14/10/2005 Return of Allotment of Shares 12/10/2005 Return of Allotment of Shares 12/10/2005 Return of Allotment of Shares 11/10/2005 Return of Allotment of Shares 10/10/2005 Return of Allotment of Shares 10/10/2005 Return of Allotment of Shares 07/10/2005 Return of Allotment of Shares 07/10/2005 Return of Allotment of Shares 07/10/2005 Return of Allotment of Shares 04/10/2005 Purchase of Own Shares 14/09/2005 Return of Allotment of Shares 14/09/2005 Return of Allotment of Shares 05/09/2005 Return of Allotment of Shares 01/09/2005 Return of Allotment of Shares 30/08/2005 Return of Allotment of Shares 26/08/2005 Return of Allotment of Shares 26/08/2005 Return of Allotment of Shares 10/08/2005 Return of Allotment of Shares 10/08/2005 Return of Allotment of Shares 08/08/2005 Return of Allotment of Shares 05/08/2005 Return of Allotment of Shares 03/08/2005 Purchase of Own Shares 03/08/2005 Purchase of Own Shares 03/08/2005 Purchase of Own Shares 03/08/2005 Purchase of Own Shares 02/08/2005 Return of Allotment of Shares 29/07/2005 Purchase of Own Shares 29/07/2005 Return of Allotment of Shares 26/07/2005 Return of Allotment of Shares 22/07/2005 Return of Allotment of Shares 21/07/2005 Return of Allotment of Shares 11/07/2005 Return of Allotment of Shares 11/07/2005 Return of Allotment of Shares 06/07/2005 Purchase of Own Shares 06/07/2005 Purchase of Own Shares 06/07/2005 Purchase of Own Shares 06/07/2005 Purchase of Own Shares 05/07/2005 Return of Allotment of Shares 27/06/2005 Return of Allotment of Shares 27/06/2005 Return of Allotment of Shares 27/06/2005 Return of Allotment of Shares 20/06/2005 Annual Return 13/06/2005 Purchase of Own Shares 13/06/2005 Purchase of Own Shares 07/06/2005 Return of Allotment of Shares 02/06/2005 Purchase of Own Shares 02/06/2005 Purchase of Own Shares 17/05/2005 Group Accounts 17/05/2005 Resolutions Passed at AGM 12/05/2005 Purchase of Own Shares 12/05/2005 Purchase of Own Shares 12/05/2005 Purchase of Own Shares 12/05/2005 Purchase of Own Shares 12/05/2005 Purchase of Own Shares 12/05/2005 Purchase of Own Shares 12/05/2005 Purchase of Own Shares 12/05/2005 Purchase of Own Shares 09/05/2005 Appointment of Director 05/05/2005 Purchase of Own Shares 04/05/2005 Return of Allotment of Shares 28/04/2005 Return of Allotment of Shares 27/04/2005 Return of Allotment of Shares 25/04/2005 Return of Allotment of Shares 11/04/2005 Return of Allotment of Shares Copies of documents filed at Companies House can be obtained from Companies House or from the Company Secretary at The Weir Group PLC, Clydesdale Bank Exchange, 20 Waterloo Street, Glasgow, G2 6DB. 3. Annual Report and Interim Report 2005 The Company's Annual Report for the 52 weeks ending 30 December 2005 and the Notice of Annual General Meeting (filed with the UKLA Document Viewing Facility on 5 April 2006) and the Interim Report 2005 (published on 30 August 2005) can be found at the Company's website at www.weir.co.uk. Copies of all documents referred to can be obtained from the Company Secretary at The Weir Group PLC, Clydesdale Bank Exchange, 20 Waterloo Street, Glasgow, G2 6DB. Further Enquiries: Alan Mitchelson, Company Secretary Phone: 0141 637 7111 This information is provided by RNS The company news service from the London Stock Exchange

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