Blocklisting Interim Review

Informa PLC 06 December 2007 SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS Please ensure the entries on this return are typed 1. NAME OF COMPANY: INFORMA PLC 2. NAME OF SCHEME: IBC GROUP PLC 1995 EXECUTIVE SHARE OPTION SCHEME 3. PERIOD OF RETURN: FROM: 05/06/2007 TO: 04/12/2007 4. NUMBER AND CLASS OF SHARE(S) (AMOUNT OF STOCK/DEBT SECURITY) NOT ISSUED UNDER SCHEME 33,579 + 64,000 ordinary shares of AT END OF THE LAST PERIOD: 10 pence each 5. NUMBER OF SHARES ISSUED/ALLOTTED UNDER SCHEME DURING PERIOD: 5,610 6. BALANCE UNDER SCHEME NOT YET ISSUED/ALLOTTED AT END OF PERIOD: 91,969 7. NUMBER AND CLASS OF SHARE(S) (AMOUNT OF STOCK/DEBT SECURITIES) ORIGINALLY LISTED AND THE DATE OF 450,000 on 07/02/00, 200,000 on ADMISSION: 05/04/01 and 64,000 on 17/07/07. All ordinary shares of 10 pence each PLEASE CONFIRM TOTAL NUMBER OF SHARES IN ISSUE AT THE END OF THE PERIOD IN ORDER FOR US TO UPDATE OUR RECORDS. 424,624,095 as at 4 December 2007 CONTACT FOR QUERIES: Address: INFORMA PLC, MORTIMER HOUSE, 37/41 MORTIMER STREET, LONDON, W1T 3JH NAME: SONIA RICHMOND TELEPHONE: 020 7017 4314 This information is provided by RNS The company news service from the London Stock Exchange

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