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: (     )

 

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: See additional information )

 

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

LEGAL & GENERAL GROUP PLC (L&G)

 

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

LEGAL & GENERAL ASSUSRANCE (PENSIONS MANAGEMENT) LIMITED (PCM)

 

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

N/A

 

6. Date on which issuer notified:

14 FEBRUARY 2007

 

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

ABOVE 3% (L&G)

 

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     Number of voting   
                                     shares        Rights             
                                                                      
                                                                      
ORD GBP 0.10                         57,051,207    3.01%              
                                                                      
                                        (under S-198 on 02/02/2004)   
                                                                      

 

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      Direct    Indirect Direct Indirect
                                                                                     
                                                                                     
ORD GBP 0.10                           6,752,034   6,752,034          3.49           
                                                                                     

 

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           
                                        
                                        
6,752,034              3.49             
                                        

 

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

 

Legal & General Group plc (Direct and Indirect)                                
(Group)                                                                        
                                                                               
                                                                               
                                                                               
Legal & General Investment Management (Holdings)                               
Limited (LGIMH) (Direct and Indirect)                                          
                                                                               
                                                                               
                                                                               
Legal & General Investment Management Limited                                  
(Indirect) (LGIM)                                                              
                                                                               
                                                                               
                                                                               
Legal & General Group plc (Direct) (L&G) (6,752,034 - 3.49% = LGAS, LGPL & PMC)
                                                                               
                                                                               
                                                                               
Legal & General Investment Management (Holdings)  Legal & General Insurance    
Limited (Direct) (LGIMHD) (5,827,448 - 3.01% =    Holdings Limited (Direct)    
PMC)                                              (LGIH)                       
                                                                               
                                                                               
                                                                               
Legal & General Assurance (Pensions Management)   Legal & General Assurance    
Limited (PMC) (5,827,448 - 3.01% = PMC)           Society Limited (LGAS & LGPL)
                                                                               
                                                                               
                                                                               
                                                  Legal & General Pensions     
                                                  Limited (Direct) (LGPL)      
                                                                               

 

Proxy Voting:

 

10. Name of the proxy holder:

       N/A

                       

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

      N/A

 

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

 N/A

 

13. Additional information:

Notification using the voting rights figure of 193,410,140

First notification under DTR Sourcebook

 

14. Contact name:

RACHEL FELL, DEPUTY SECRETARY, COOKSON GROUP PLC

 

15. Contact telephone number:

020 7822 0000