Holding(s) in Company

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:                                       
                                                                       
    Legal & General Group Plc (L&G)                                    
                                                                       
4   Full name of shareholder(s) (if different from 3.):                                                
                                                                       
    Legal & General Assurance (Pensions Management) Limited (PMC)                                          
                                                                       
5   Date of the transaction (and date on which the threshold is crossed or reached if different):
                                                                       
    1 October 2009                                                     
                                                                       
6   Date on which issuer notified:                                     
                                                                       
    5 October 2009                                                     
                                                                       
7   Threshold(s) that is/are crossed or reached:                                                           
                                                                       
    From 3% - 4% (L&G)                                                 
                                                                       
8   Notified details:                                                  
                                                                       
    VOTING RIGHTS ATTACHED TO SHARES:                                  
                                                                       
    Class/type of shares (if possible using the ISIN CODE):                                              
                                                                       
    ORD GBP 1                                                          
                                                                       
    Situation previous to the triggering transaction:                                            
                                                                       
    Number of shares: 8,515,661                                        
                                                                       
    Number of voting rights: 8,515,661                                 
                                                                       
    Resulting situation after the triggering transaction:                                            
                                                                       
    Number of shares (direct): 8,638,186                                                          
                                                                       
    Number of voting rights (direct): 8,638,186                                                          
                                                                       
    Number of voting rights (indirect):                                
                                                                       
    % of voting rights (direct): 4.02%                                 
                                                                       
    % of voting rights (indirect):                                     
                                                                       
    Total voting rights: 8,638,186 (4.02%)                                                            
                                                                       
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) (8,638,186 - 4.02% = LGAS, LGPL & PMC)
                                                                       
    Legal & General Investment Management (Holdings) Limited       Legal & General Insurance Holdings 
    (Direct) (LGIMHD) (7,871,333 - 3.66% = PMC)                    Limited (Direct) (LGIH)
                                                                       
    Legal & General Assurance (Pensions Management)                Legal & General Assurance Society
    Limited (PMC)(7,871,333 - 3.66% = PMC)                         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 total voting rights figure of 214,675,736                    
                                                                       
14  Contact Name:                                                      
    Angela Purtill, Deputy Company Secretary, Johnson Matthey plc      
    Contact Telephone Number: 020 7269 8461