Holding(s) in Company

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:

COOKSON GROUP PLC


2. Reason for the notification (please state Yes/No):


An acquisition or disposal of voting rights: ( Yes)

 

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:

Martin Currie Investment Management Limited

 

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

 

 

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

20 February 2009

 

6. Date on which issuer notified:

10 March 2009

 

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

5%

 

8. Notified details:

……………..

 

A: Voting rights attached to shares

 

Class/type of shares if possible        Situation previous to the     
using the ISIN CODE                       Triggering transaction      
                                                                      
                                    Number of shares   Number of      
                                                       voting Rights  
                                                                      
Ord                                             0                 0   
                                                                      
                                                                      
                                                                      

 

Resulting situation after the triggering transaction

 

Class/type of shares if possible      Number of   Number of voting    % of voting    
using the ISIN CODE                   shares      rights              rights         
                                                                                     
                                      Direct      Direct     Indirect Direct Indirect
                                                                                     
Ord                                   14,052,064  14,052,064          6.61           
                                                                                     

 

B: Financial Instruments

Resulting situation after the triggering transaction

 

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

 

Total (A+B)

Number of voting       % of voting      
rights                 rights           
                                        
14,052,064             6.61             
                                        

 

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

 

As a result of a purchase on 20 February 2009, Martin Currie Investment
Management Limited (on behalf of its clients) now holds more than 5% of the
issued share capital of Cookson Group plc (pre rights issue).

 

Proxy Voting:

 

10. Name of the proxy holder:

 

 

11. Number of voting rights proxy holder will acquire:

 

 

12. Date on which proxy holder will acquire voting rights:

 

 

13. Additional information:

Please note that percentages given in this announcement are based on the
company's undiluted total number of voting rights pre rights issue of
212,607,762 as the transaction that triggered the disclosure had taken place on
20 February 2009. The company's current total number of voting rights post
rights issue is 2,763,900,906. If this holding were calculated on the basis of
the company's current total number of voting rights post rights issue, the
percentage would be 0.51%.

 

 

14. Contact name:

RACHEL FELL, DEPUTY SECRETARY, COOKSON GROUP PLC

 

15. Contact telephone number:

+  44 (0) 20 7822 0000