Blocklisting Interim Review

Informa PLC
06 June 2006



                    BLOCKLISTING SIX MONTHLY REVIEW


1. NAME OF COMPANY:    INFORMA PLC



2. NAME OF SCHEME:     INFORMA GROUP PLC DISCRETIONARY SHARE OPTION SCHEME



3. PERIOD OF RETURN:  FROM: 05/12/2005  TO: 04/06/2006



4. NUMBER AND CLASS OF SHARE(S)       
   (AMOUNT OF STOCK/DEBT SECURITY)
   NOT ISSUED UNDER SCHEME
   AT END OF THE LAST PERIOD:           475,694 ordinary shares of 10 pence each



5. NUMBER OF SHARES ISSUED/ALLOTTED
   UNDER SCHEME DURING PERIOD:          213,941



6. BALANCE UNDER SCHEME NOT YET  
   ISSUED/ALLOTTED AT END OF PERIOD:    261,753



7. NUMBER AND CLASS OF SHARE(S)         450,000 on 15/07/98 500,000 on 18/06/99,    
   (AMOUNT OF STOCK/DEBT SECURITIES)    830,000 on 07/02/00, 640,000 on 05/04/01
   ORIGINALLY LISTED AND                and 540,000 on 20/05/05 - All ordinary 
   THE DATE OF ADMISSION:               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.

              422,349,737 AS AT 4 JUNE 2006

CONTACT FOR QUERIES

NAME:         ANDREA CALLABY
TELEPHONE:    [phone]


END


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