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: ( No
)

 

An event changing the breakdown of voting rights: ( No )

 

Other (please specify): ( No)

 

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

AEGON UK Group of Companies

 

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):

2 June 2010

 

6. Date on which issuer notified:

3 June 2010

 

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

3%

 

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          
                                                                      
GB00B3WK5475                             8,317,942         8,317,942  
                                                                      

 

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
                                                                                     
GB00B3WK5475                           Below 3%     Below 3% Below 3% n/a    n/a     
                                                                                     

 

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      Exercise Expiration Exercise/    Number of voting     % of voting  
financial    date     date       Conversion   rights instrument    rights       
instrument                       period       refers to                         
                                                                                
                                                                   Nominal Delta
                                                                                
   Contract for      n/a   n/a       n/a              n/a            n/a    n/a 
    difference                                                                  
                                                                                

 

Total (A+B+C)

Number of voting       % of voting      
rights                 rights           
                                        
Below 3%               Below 3%         
                                        

 

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

 

AEGON UK Group of companies - parent undertaking of:

AEGON Asset Management UK plc

AEGON Investment Management UK ltd

AEGON ICVC

 

Proxy Voting:

 

10. Name of the proxy holder:

 

AEGON UK Group of companies

 

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:

 

AEGON UK Group of companies consists of:

AEGON Asset Management UK plc

AEGON Investment Management UK Ltd

AEGON ICVC

 

 

14. Contact name:

RACHEL FELL, DEPUTY SECRETARY, COOKSON GROUP PLC

 

15. Contact telephone number:

+  44 (0) 20 7822 0000