Holding(s) in Company

Informa PLC
23 August 2007





TR-1:           NOTIFICATION OF MAJOR INTERESTS IN SHARES


1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:

Informa PLC


2. Reason for the notification (please tick the appropriate box or boxes)

An acquisition or disposal of voting rights:                               ( X )


An acquisition or disposal of financial instruments which may result 
in the acquisition of shares already issued to which voting rights are 
attached:                                                                  (   )


An event changing the breakdown of voting rights:                          (   )


Other (please specify) :                                                   (   )



 
3. Full name of person(s) subject to the notification obligation:

Standard Life Investments Ltd
 

4. Full name of shareholder(s) (if different from 3.):

Vidacos Nominees
 

5. Date of the transaction and date on which the threshold is crossed or reached
if different):

22 August 2007
 

6. Date on which issuer notified:

23 August 2007
 

7. Threshold(s) that is/are crossed or reached:

5%
 

8. Notified details:

Standard Life Investments Ltd disposed of 486,677 voting rights.
 


A: Voting rights attached to shares

Class/type of shares    if possible using the ISIN code   GB0002625654      


Situation prior to the triggering transaction            
                            

Number of shares              Number of voting Rights 

21,256,452                    21,256,452


 


Resulting situation after the triggering transaction 
 
Number of shares          Number of voting rights            % of voting rights  

Direct                    Direct          Indirect            Direct    Indirect  

17,130,681                17,130,681      3,639,094           4.034%    0.857%


 


B: Financial Instruments

Resulting situation after the triggering transaction 

Type of     Expiration Date  Exercise/Conversion Number of voting     % of voting     
financial                    Period/ Date        rights that may be   rights          
instrument                                       acquired if the                      
                                                 instrument is                        
                                                 exercised/                           
                                                 converted.                           

 



Total (A+B)

Number of voting rights       % of voting rights 

20,769,775                    4.892%

 


9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:

Standard Life Investments Ltd
 




Proxy Voting:

 
10. Name of the proxy holder:


 

11. Number of voting rights proxy holder will cease to hold:


 

12. Date on which proxy holder will cease to hold voting rights:


 

13. Additional information:


 

14. Contact name:

Alison Kennedy
Corporate Governance Manager - Engagement
Standard Life Investments Ltd
 

15. Contact telephone number:

[phone]





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