Annual Information Update

Informa PLC 13 April 2006 INFORMA PLC 13 April 2006 ANNUAL INFORMATION UPDATE RIS Announcements In accordance with Prospectus Rule 5.2, the following information has been published or made available to the public in the twelve months up to and including 13 April 2006. The following UK regulatory announcements have been made via RNS, a Regulatory Information Service. A copy of these announcements can be obtained from the London Stock Exchange website www.londonstockexchange.com/marketnews or from the company's website www.informa.com Date of Announcement Description 12/04/2006 REG-Informa PLC Notice of AGM 03/04/2006 REG-Informa PLC Director/PDMR Shareholding 30/03/2006 REG-Informa PLC Director/PDMR Shareholding 29/03/2006 REG-Informa PLC Director/PDMR Shareholding 14/03/2006 REG-Informa PLC Final Results - Part 3 14/03/2006 REG-Informa PLC Final Results - Part 2 14/03/2006 REG-Informa PLC Final Results - Part 1 10/03/2006 REG-Informa PLC Director Declaration ---------------------------------------- 01/03/2006 REG-Informa PLC Director/PDMR Shareholding -------------------------------------------- 09/02/2006 REG-Informa PLC Holding(s) in Company --------------------------------------- 07/02/2006 REG-Expomedia Group PLC Re Joint Venture ------------------------------------------ 03/02/2006 REG-Informa PLC Holding(s) in Company --------------------------------------- 01/02/2006 REG-Informa PLC Director/PDMR Shareholding -------------------------------------------- 17/01/2006 REG-Informa PLC Holding(s) in Company --------------------------------------- 13/01/2006 REG-Informa PLC Additional Listing ------------------------------------ 12/01/2006 REG-Informa PLC Pre Close Trading Statement --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 10/01/2006 REG-Informa PLC Blocklisting Interim Review --------------------------------------------- 05/01/2006 REG-Informa PLC Holding(s) in Company --------------------------------------- 05/01/2006 REG-Informa PLC Holding(s) in Company --------------------------------------- 22/12/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 01/12/2005 REG-Informa PLC Director/PDMR Shareholding -------------------------------------------- 29/11/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 21/11/2005 REG-Informa PLC Analyst and Investor Seminar ---------------------------------------------- 15/11/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 09/11/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 08/11/2005 REG-Informa PLC Director/PDMR Shareholding -------------------------------------------- 31/10/2005 REG-Informa PLC Notice of Results ----------------------------------- 21/10/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 17/10/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 17/10/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 03/10/2005 REG-Informa PLC Director/PDMR Shareholding -------------------------------------------- 30/09/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 22/09/2005 REG-Informa PLC Interim Results - Part 3 ------------------------------------------ 22/09/2005 REG-Informa PLC Interim Results - Part 2 ------------------------------------------ 22/09/2005 REG-Informa PLC Interim Results - Part 1 ------------------------------------------ 20/09/2005 REG-Informa PLC Appointment of Non-Exec Director -------------------------------------------------- 07/09/2005 REG-Informa PLC Holding(s) in Company --------------------------------------- 06/09/2005 REG-Informa PLC Holding(s) in Company ---------------------------------------- 19/08/2005 REG-Informa PLC Additional Listing ------------------------------------ 18/08/2005 REG-T&F Informa PLC EGM Statement ----------------------------------- 08/08/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 04/08/2005 REG-T&F Informa PLC Holding(s) in Company -------------------------------------------- 01/08/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 27/07/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 26/07/2005 REG-T&F Informa PLC Director/PDMR Shareholding ------------------------------------------------ 25/07/2005 REG-T&F Informa PLC Result of Rights Issue -------------------------------------------- 22/07/2005 REG-T&F Informa PLC Result of Rights Issue -------------------------------------------- 22/07/2005 REG-T&F Informa PLC Pre-close trading update ---------------------------------------------- 07/07/2005 REG-T&F Informa PLC Completion of Acquisition ----------------------------------------------- 06/07/2005 REG-Office of Fair Trade Merger Update ---------------------------------------- 04/07/2005 REG-T&F Informa PLC Holding(s) in Company -------------------------------------------- 04/07/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 30/06/2005 REG-T&F Informa PLC EGM Statement ----------------------------------- 17/06/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 15/06/2005 REG-T&F Informa PLC Prospectus Issued --------------------------------------- 13/06/2005 REG-Office of Fair Trade Merger Update ---------------------------------------- 13/06/2005 REG-T&F Informa PLC IFRS Statement ------------------------------------ 10/06/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 07/06/2005 REG-T&F Informa PLC Blocklisting Interim Review ------------------------------------------------- 06/06/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 02/06/2005 REG-T&F Informa PLC Director Shareholding ------------------------------------------- 01/06/2005 REG-T&F Informa PLC Acquisition - Part 3 ------------------------------------------ 01/06/2005 REG-T&F Informa PLC Acquisition - Part 2 ------------------------------------------ 01/06/2005 REG-T&F Informa PLC Acquisition - Part 1 ------------------------------------------ 24/05/2005 REG-T&F Informa PLC Additional Listing ---------------------------------------- 20/05/2005 REG-T&F Informa PLC Additional Listing ---------------------------------------- 18/05/2005 REG-T&F Informa PLC Additional Listing ---------------------------------------- 18/05/2005 REG-T&F Informa PLC AGM Statement ----------------------------------- 25/04/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- 21/04/2005 REG-T&F Informa PLC Holding(s) in Company -------------------------------------------- 19/04/2005 REG-T&F Informa PLC Director Shareholding ------------------------------------------- 19/04/2005 REG-T&F Informa PLC Director Shareholding ------------------------------------------- 19/04/2005 REG-T&F Informa PLC Director Shareholding ------------------------------------------- 18/04/2005 REG-T&F Informa PLC Notice of AGM ----------------------------------- 13/04/2005 REG-T&F Informa PLC Director Shareholding ------------------------------------------- 12/04/2005 REG-T&F Informa PLC Holding(s) in Company ------------------------------------------- Documents filed at Companies House The company has made the following filings with the Registrar of Companies in England and Wales on or around the dates indicated. Copies of these documents can be obtained from Companies House, Crown Way, Cardiff, CF14 3UZ, telephone: 0870 3333636 (www.companieshouse.gov.uk) or if you are a registered user through Companies House Direct at www.direct.companieshouse.gov.uk. Date of Date of Item Description Filing Publication 08/03/ 22/03/2006 Form 88(2) Return of Allotment of shares on exercise 2006 of share options 20/02/ 15/03/2006 Form 88(2) Return of Allotment of shares on exercise 2006 of share options x 2 06/02/ 02/03/2006 Form 88(2) Return of Allotment of shares on exercise 2006 of share options 24/01/ 02/03/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 20/01/ 28/02/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 19/01/ 28/02/2006 Form 88(2) Return of Allotment of shares on exercise 2006 of share options 12/01/ 08/02/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 10/01/ 08/02/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 09/01/ 08/02/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 06/01/ 08/02/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 04/01/ 08/02/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 04&05/01 08/02/2006 Form 88(2) Return of Allotment of shares on exercise /2005 of share options 22/12/ 08/02/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 20/12/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 19/12/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 15/12/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options x 2 14/12/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 07/12/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 02/12/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 23/11/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 21/11/ 30/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 14/11/ 10/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 09/11/ 10/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 04/11/ 10/01/2006 Form 88(2) Return of Allotment of shares on exercise 2005 of share options x 2 24/10/ 28/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 21/10/ 28/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 14/10/ 28/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 29/09/ 11/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 21/09/ 11/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 14/09/ 11/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 07/09/ 11/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options x 2 01/09/ 11/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 05/10/ 10/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 31/08/ 07/11/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 01/10/ 24/10/2005 Form 288a Appointment of John Gordon Davis as Non 2005 Executive Director 06/09/ 11/10/2005 Form 363a Annual Return Made Up to 6 September 2005 2009 26/08/ 21/09/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 12/07/ 15/09/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 11/07/ 15/09/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 25/07/ 05/09/2005 Form 88(2)R Return of Allotment of shares re the Rights 2005 Issue 08/08/ 30/08/2005 Form 88(3) Particulars of Contract Relating to 2005 Shares 08/08/ 30/08/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 10/06/ 25/08/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 09/06/ 25/08/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options x 2 08/06/ 25/08/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 06/06/ 25/08/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 01/06/ 25/08/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options 18/08/ 18/08/2005 Resolution Certificate of Change of Name from T&F 2005 Informa plc to Informa plc 22/06/ 17/08/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options x 2 15/06/ 17/08/2005 Form 88(2) Return of Allotment of shares on exercise 2005 of share options x 3 30/06/ 27/07/2005 Form G123 Increase in authorised share capital by £10 2005 million to £60 million. 30/06/ 27/07/2005 Resolution Approval of acquisition of IIR Holdings 2005 Ltd, Increase of Authorised share capital and authority to allot shares and authority to permit borrowings to exceed limit in articles. 18/05/ 30/06/2005 Resolution Alteration of Memorandum and Articles of 2005 Association re Indemnity of Officers and authority to purchase own shares 18/05/ 30/06/2005 Memorandum & Full copy of memorandum and articles of 2005 Articles of association incorporating all amendments to Association 18 May 2005 14/06/ 16/06/2005 Prospectus Listing Particulars 2005 06/05/ 06/06/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 03/05/ 06/06/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options x 2 29/04/ 06/06/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 22/04/ 20/05/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 18/04/ 20/05/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 14/04/ 20/05/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 13/04/ 20/05/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 14/04/ 12/05/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 23/03/ 06/05/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 07/04/ 05/05/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 09/03/ 03/05/2005 Annual Annual Accounts for the Year Ended 31 2005 Accounts December 2004 14/04/ 27/04/2005 Form 288c Change of Particulars of Director - Sean 2005 Michael Watson 06/04/ 22/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 04/04/ 22/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options x 2 01/04/ 22/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 31/03/ 22/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 24/03/ 22/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 23/03/ 22/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 21/03/ 22/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 18/03/ 12/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options x 2 16/03/ 12/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options 14/03/ 12/04/2005 Form 88(2)R Return of Allotment of shares on exercise 2005 of share options Documents Published and Sent to Shareholders Copies of the following documents were sent to shareholders and submitted, at the time, to the UK Listing Authority for inspection at their Document Viewing Facility situated at Financial Services Authority, The North Colonnade, Canary Wharf, London, E14 5HS. The documents can also be obtained from the company's website, www.informa.com Date Document Type 13 April 2006 Annual Report and Accounts for the financial year ended 31 December 2005 13 April 2006 2006 AGM Notice and Circular 22 September 2005 Interim Report for the six months ended 30 June 2005 22 July 2005 EGM Notice and Circular regarding change of company name. 1 July 2005 and 14 June 2005 Prospectus regarding the acquisition of IIR Holdings Limited 18 April 2005 2005 AGM Notice and Circular In accordance with Section 5.2.7 Prospectus Rules, it is noted that some of the information referred to above may be out of date. Copies of this Annual Information Update can be obtained from the company's registered office: Informa plc Mortimer House 37/41 Mortimer Street London W1T 3JH United Kingdom For further information contact Andrea Callaby, Deputy Company Secretary tel: +44 (0)20 7017 5000 Date: 13 April 2006 ENDS This information is provided by RNS The company news service from the London Stock Exchange

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