FORM 8.3

                        DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE

                                             (Rule 8.3 of the Takeover Code)





1.      KEY INFORMATION



 Name of person dealing  (Note 1)                   Unicredit Group / Person Dealing; Pioneer Investment Management Ltd

 Company dealt in                                   INFORMA PLC

 Class of relevant security to which the dealings   Ordinary Shares

 being disclosed relate (Note 2)

 Date of dealing                                    24th July 2008





2.      INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE



(a)     Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3)



                                                                   Long                                  Short

 

                                                    Number                               Number

                                                    (%)                                  (%)

                                                                                         

 (1) Relevant securities                            9,307,107.00

                                                    2.19%

 (2) Derivatives (other than options)                                                    

     

 (3) Options and agreements to purchase/sell                                             

     

                                                                                         

 Total

 



(b)     Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3)



 Class of relevant security:                                       Long                                  Short

                         

                                                    Number                               Number

                                                    (%)                                  (%)

 (1) Relevant securities                                                                 

     

 (2) Derivatives (other than options)                                                    

     

 (3) Options and agreements to purchase/sell                                             

     

 Total                                                                                   

 



(c)     Rights to subscribe (Note 3)



 Class of relevant security:                        Details

 

 Ordinary Shares                                    







3.      DEALINGS (Note 4)



(a)     Purchases and sales



 Purchase/sale                              Number of securities                     Price per unit (Note 5)

 

                                                                                     

 Buy                                        61,847.00                                £4.155

 

        

        



(b)     Derivatives transactions (other than options)

 

 Product name,           Long/short (Note 6)          Number of securities (Note 7)           Price per unit (Note 5)

 e.g. CFD

                                                                                              

 

        

        



(c)     Options transactions in respect of existing securities



(i)     Writing, selling, purchasing or varying



 Product name,           Writing,           Number of securities    Exercise    Type, e.g.       Expiry       Option money

 e.g. call option        selling,           to which the option     price       American,        date         paid/received

                         purchasing,        relates (Note 7)                    European etc.                 per unit (Note

                         varying etc.                                                                         5)

                                                                                                              





(ii)    Exercising



 Product name, e.g. call option             Number of securities                     Exercise price per unit (Note 5)

                                                                                     

                                                                                     

                                                                                     







(d)     Other dealings (including new securities) (Note 4)





 Nature of transaction (Note 8)             Details                                  Price per unit (if applicable) (Note 5)

 

                                                                                     























4.      OTHER INFORMATION



Agreements, arrangements or understandings relating to options or derivatives





 Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the

 voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future

 acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced.  If none,

 this should be stated.

 

 

 





Is a Supplemental Form 8 attached? (Note 9)                                NO





 Date of disclosure                                                       25 July 2008

 Contact name                                                             Veronica Brennan /Eduardo Monzon

 Telephone number                                                         + 353 1 480 2571 / +353 1 480 2578

 If a connected EFM, name of offeree/offeror with which connected         N/A

 If a connected EFM, state nature of connection (Note 10)                 N/A





Notes



The Notes on Form 8.3 can be viewed on the Takeover Panel's website at www.thetakeoverpanel.org.uk