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:                                                 
                                                                               
    Johnson Matthey plc                                                        
                                                                               
2.  Reason for the notification:                                               
                                                                               
    An acquisition or disposal of voting rights                                
                                                                               
3.  Full name of person(s) subject to the notification obligation:             
                                                                               
    Vanguard Precious Metals & Mining                                          
                                                                               
4.  Full name of shareholder(s) (if different from 3.):                        
                                                                               
    Chase Nominees Limited
                                                                          
5.  Date of the transaction (and date on which the threshold is crossed or     
    reached if different):                                                     
                                                                               
    2 September 2008                                                           
                                                                               
6.  Date on which issuer notified:                                             
                                                                               
    8 September 2008                                                            
                                                                               
7.  Threshold(s) that is/are crossed or reached:                               
                                                                               
    5%                                                                         
                                                                               
8.  Notified details:                                                          
                                                                               
    VOTING RIGHTS ATTACHED TO SHARES:                                          
                                                                               
    Class/type of shares (if possible using the ISIN CODE):                    
                                                                               
    GB0004764071                                                               
                                                                               
    Situation previous to the triggering transaction:                          
                                                                               
    Number of shares: 10,650,000                                               
                                                                               
    Number of voting rights: 10,650,000                                        
                                                                               
    Resulting situation after the triggering transaction:                      
                                                                               
    Number of shares (direct): 10,850,000                                      
                                                                               
    Number of voting rights (direct): 10,850,000                               
                                                                               
    Number of voting rights (indirect): -                                      
                                                                               
    % of voting rights (direct): 5.05%                     
                    
    % of voting rights (indirect): -                                           
                                                                               
    Total number of voting rights: 10,850,000                                  
                                                                               
    Total % of voting rights: 5.05%                                            
                                                                               
9.  Chain of controlled undertakings through which the voting rights and/or the
    financial instruments are effectively held if applicable:                   
                                                                               
    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:                                                    
                                                                               
14. Contact Name:                                                              
                                                                               
    Angela Purtill, Assistant Company Secretary, Johnson Matthey plc           
                                                                               
15. Contact Telephone Number:                                                  
                                                                               
    020 7269 8461                                                              
                                                                               
    9 September 2008