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):  
                                                                        
    3 August 2009                                                       
                                                                        
6   Date on which issuer notified:                                      
                                                                        
    5 August 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):                                               
                                                                        
    GB0004764071                                                        
                                                                        
    Situation previous to the triggering transaction:                                             
                                                                        
    Number of shares: 8,495,994                                         
                                                                        
    Number of voting rights: 8,495,994                                  
                                                                        
    Resulting situation after the triggering transaction:                                             
                                                                        
    Number of shares (direct): 8,869,492                                                           
                                                                        
    Number of voting rights (direct): 8,869,492                                                           
                                                                        
    Number of voting rights (indirect):                                 
                                                                        
    % of voting rights (direct): 4.13%                                  
                                                                        
    % of voting rights (indirect):                                      
                                                                        
    Total voting rights: 8,869,492 (4.13%)                                                             
                                                                        
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) (8,869,492 - 4.13% = LGAS, LGPL & PMC) 
                                                                        
    Legal & General Investment                         Legal & General Insurance Holdings 
    Management (Holdings) Limited                      Limited (Direct) (LGIH)           
    (Direct) (LGIMHD) (8,110,039 - 3.77% = PMC)   
                                                                        
    Legal & General Assurance (Pensions Management)    Legal & General Assurance Society
    Limited (PMC)(8,110,039 - 3.77% = 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