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): ( Yes, increase in total voting rights issued by the
Company )

 

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

FIL Limited (FIL)

 

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

See section 9

 

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

4 March 2009

 

6. Date on which issuer notified:

6 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           
                                                                      
ISIN GB00B07V4P80                        24,048,837       24,048,837  
                                                                      
                                                                      
                                                                      

 

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
                                                                                     
ISIN GB00B07V4P80                    115,960,563 115,960,563          4.19           
                                                                                     

 

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           
                                        
115,960,563            4.19             
                                        

 

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

 

FIL                                                                                       
                                                                                          
                                                                                          
                                                                                          
Issue name:                            Cookson Group plc                                  
                                                                                          
                                                                                          
                                                                                          
Current ownership percentage:                       4.19%                                 
                                                                                          
Total shares held:                            115,960,563                                 
                                                                                          
Issued share capital:                       2,763,900,906                                 
                                                                                          
                                                                                          
                                                                                          
FIL Limited (FIL) is the parent holding company for  SHARES HELD NOMINEE        MANAGEMENT
various direct and indirect subsidiaries, including                             COMPANY   
FIL Fund Management Limited (FFML), FIL Investment                                        
Services Ltd (FISL), FIL Gestion (FIGEST), FIL Asset 15,062,445  BNP PARIBAS,   FIGEST    
Management (Korea) Limited (FIAKL), FIL Investments              PARIS                    
Management (Hong Kong) Limited (FIMHK), FIL Pension                                       
Management (FPM), Fidelity Investments Japan (FIJ)   10,654,900  BROWN BROS     FIL       
and FIL Investments International (FII), investment              HARRIMN LTD              
managers for various non-US investment companies and             LUX                      
institutional clients.                                                                    
                                                     4,602,464   JP MORGAN,     FII       
                                                                 BOURNEMOUTH              
                                                                                          
                                                     31,720      JP MORGAN,     FIL       
                                                                 BOURNEMOUTH              
                                                                                          
                                                     79,167,334  JP MORGAN,     FISL      
                                                                 BOURNEMOUTH              
                                                                                          
                                                     6,441,700   JP MORGAN,     FIL       
                                                                 BOURNEMOUTH              
                                                                 (C)                      
                                                                                          

 

 

Proxy Voting:

 

10. Name of the proxy holder:

FIL Limited (FIL)

 

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

91,911,726

 

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

4 March 2009

 

13. Additional information:

Threshold breach due to an increase in the total voting rights issued by the
Company.

 

 

14. Contact name:

RACHEL FELL, DEPUTY SECRETARY, COOKSON GROUP PLC

 

15. Contact telephone number:

+  44 (0) 20 7822 0000