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:            
                                                                               
     FIL Limited                                                               
                                                                               
4    Full name of shareholder(s) (if different from 3.):                       
                                                                               
     FIL Limited (FIL) is the parent holding company for various direct and    
     indirect subsidiaries, including FIL Fund Management Limited (FFML), FIL  
     Investment Services Ltd (FISL), FIL Gestion (FIGEST), FIL Asset Management
     (Korea) Limited (FIAKL), FIL Investments Management (Hong Kong) Limited   
     (FIMHK), FIL Pension Management (FPM), Fidelity Investments Japan (FIJ)   
     and FIL Investments International (FII), investment managers for various  
     non-US investment companies and institutional clients.                    
                                                                               
     SHARES    NOMINEE                             MANAGEMENT COMPANY 
     HELD                                                                      
                                                                               
     162,683   BANK OF NEW YORK BRUSSELS           FPM                                     
     16,000    BANK OF NEW YORK EUROPE LDN         FIL                                    
     357,630   BNP PARIBAS, PARIS                  FIGEST                                         
     5,571     BNP PARIBAS, PARIS (C)              FIL                                          
     6,224,498 Brown Bros Harrimn Ltd Lux          FIL                                  
     10,900    Brown Bros Harriman and Co          FIJ                                     
     14,400    Chase Manhttn BK AG FRNKFRT (S)     FPM                               
     790,953   JP MORGAN, BOURNEMOUTH              FIL                                        
     1,312,211 JP MORGAN, BOURNEMOUTH              FISL                                     
     42,193    JP MORGAN, BOURNEMOUTH              FPM                                         
     153,200   MASTER TRUST BANK OF JAPAN          FIJ                                   
     111,700   NORTHERN TRUST LONDON               FIL                                         
     273,867   NORTHERN TRUST LONDON               FPM                                         
     35,000    STATE STR BK AND TR CO LNDN (S)     FIL                                
     334,880   Brown Bros Harrimn Ltd Lux (C)      FIL                                
     170,231   JP MORGAN, BOURNEMOUTH (C)          FIL                                    
     127,400   MASTER TRUST BANK OF JAPAN (C)      FIJ                                
     10,500    STATE STR BK AND TR CO LNDN (C)     FIL                                
     24,700    CITIBANK NA, HONG KONG BR (S)       FIL                                  
     21,000    MELLON BANK NA (S)                  FIL                                            
     275,800   BNP PARIBAS FND SRVS AUST (C)       FIL                                 
     40,989    JP MORGAN, BOURNEMOUTH (C)          FIL                                     
     628       BROWN BROTHERS HARRIMN LTD LUX (C)  FIL                                
     43,890    BROWN BROTHERS HARRIMN LTD LUX (C)  FIL                             
                                                                               
5    Date of the transaction (and date on which the threshold is crossed or    
     reached if different):                                                    
                                                                               
     25 November 2011                                                          
                                                                               
6    Date on which issuer notified:                                            
                                                                               
     29 November 2011                                                          
                                                                               
7    Threshold(s) that is/are crossed or reached:                              
                                                                               
     5%                                                                        
                                                                               
8    Notified details:                                                         
                                                                               
A:   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: 10,953,071                                              
     Number of voting rights: 10,953,071                                       
                                                                               
     Resulting situation after the triggering transaction:                    
     Number of shares (indirect): 10,516,934                                   
     Number of voting rights (direct):                                         
     Number of voting rights (indirect): 10,516,934                            
                                                                               
     % of voting rights (direct):                                              
     % of voting rights (indirect): 4.89                                       
                                                                               
B:   QUALIFYING FINANCIAL INSTRUMENTS                                          
                                                                               
     N/A                                                                       
                                                                               
C:   FINANCIAL INSTRUMENTS WITH SIMILAR ECONOMIC EFFECT TO QUALIFYING FINANCIAL
     INSTRUMENTS                                                               
                                                                               
     Resulting situation after the triggering transaction:                      
     Type of financial instrument: Contract For Difference                     
     Exercise Price:                                                           
     Expiration date:                                                         
     Exercise / conversation period:                                          
     Number of voting rights instrument refers to: 43,890                      
     % of voting rights (Nominal):                                            
     % of voting rights (Delta): 0.02                                          
                                                                               
     Total voting rights: 10,560,824 (4.91%)                                   
                                                                               
9    Chain of controlled undertakings through which the voting rights and/or   
     the financial instruments are effectively held if applicable:             
                                                                               
     See 4 above.                                                              
                                                                               
     PROXY VOTING:                                                             
                                                                               
10   Name of the proxy holder:                                                 
                                                                               
     FIL Limited                                                               
                                                                               
11   Number of voting rights proxy holder will cease to hold:                  
                                                                               
     436,137                                                                   
                                                                               
12   Date on which proxy holder will cease to hold voting rights:              
                                                                               
     25 November 2011                                                          
                                                                               
13   Additional Information                                                    
                                                                               
     None                                                                      
                                                                               
14   Contact Name:                                                             
                                                                               
     Angela Purtill, Deputy Company Secretary, Johnson Matthey plc            
     Contact Telephone Number: 020 7269 8461