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:

IGNIS INVESTMENT SERVICES 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):

30 SEPTEMBER 2010

 

6. Date on which issuer notified:

     4 OCTOBER 2010

 

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

3%

 

8. Notified details:

   Nominee holdings

 

A: Voting rights attached to shares

 

Class/type of shares if possible         Situation previous to the    
using the ISIN CODE                       Triggering transaction      
                                                                      
                                     Number of     Number of voting   
                                     shares        Rights             
                                                                      
                                                                      
B3WK547                                             N/A               
                                                                      

 

Resulting situation after the triggering transaction

 

Class/type of shares if possible using Number of   Number of voting   % of voting    
the ISIN CODE                          shares      rights             rights         
                                                                                     
                                                   Direct  Indirect   Direct Indirect
                                                                                     
                                                                                     
B3WK547                                                    8,475,767         3.07    
                                                                                     

 

B: Qualifying 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                                            
                                                                                     

 

C: Financial Instruments with similar economic effect to Qualifying Financial
Instruments

Resulting situation after the triggering transaction

 

Type of financial  Exercise  Expiration Exercise/         Number of voting rights       % of voting  
instrument         price     date       Conversion period instrument refers to          rights       
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                        Nominal Delta
                                                                                                     
                                      N/A                                                            
                                                                                                     

 

Total (A+B+C)

Number of voting       % of voting      
rights                 rights           
                                        
                                        
8,475,767              3.07             
                                        

 

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

Pearl Group Limited

Impala Holdings Limited

Pearl Group Holdings (No 1) Ltd

Ignis Asset Management Ltd

Ignis Investment Services Ltd (indirect)

 

Vidacos Nominees Ltd (6,824,319 - 2.47%)

State Street Nominees (1,099,742 - 0.40%)

BNY (OCS) Nominees Ltd (551,706 - 0.20%)

 

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:

RACHEL FELL, DEPUTY SECRETARY, COOKSON GROUP PLC

 

15. Contact telephone number:

+ 44 (0)20 7822 0000