NOTIFICATION OF TRANSACTIONS OF DIRECTORS/PERSONS DISCHARGING MANAGERIAL
    RESPONSIBILITIES AND CONNECTED PERSONS

    1.        Name of the issuer:                                                         
                                                                                          
              Johnson Matthey Plc                                                         
                                                                                          
    2.        State whether the notification relates to (i) a transaction notified in     
              accordance with DTR 3.1.2 R, (ii) a disclosure made in accordance with      
              section 793 of the Companies Act 2006, or (iii) a transaction notified in   
              accordance with paragraph 26 of the Model Code:                             
                                                                                          
              Transactions notified in accordance with DTR 3.1.2R                         
                                                                                          
    3.        Name of person discharging managerial responsibilities/director:            
                                                                                          
              G P Otterman                                                                
              L C Pentz                                                                   
              J F Walker                                                                  
                                                                                          
    4.        State whether notification relates to a person connected with a person      
              discharging managerial responsibilities/director named in 3 and identify the
              connected person:                                                           
                                                                                          
              N/A                                                                         
                                                                                          
    5.        Indicate whether the notification is in respect of a holding of the person  
              referred to in 3 or 4 above or in respect of a non-beneficial interest:     
                                                                                          
              A notification in respect of holdings of the persons referred to in 3 above 
                                                                                          
    6.        Description of shares (including class), debentures or derivatives or       
              financial instruments relating to shares:                                   
                                                                                          
              Ordinary Shares of 104 16/21 pence each                                     
                                                                                          
    7.        Name of registered shareholders(s) and, if more than one, the number of     
              shares held by each of them:                                                
                                                                                          
              T Rowe Price Trust as Trustee of the Johnson Matthey Salaried Employees     
              Savings Investment Plan                                                     
                                                                                          
    8.        State the nature of the transaction:                                        
                                                                                          
              Dividend reinvestment by the Trustee of the Johnson Matthey Salaried        
              Employees Savings Investment Plan                                           
                                                                                          
    9.        Number of shares, debentures or financial instruments relating to shares    
              acquired:                                                                   
                                                                                          
              G P Otterman       179                                                      
              L C Pentz          133                                                      
              J F Walker           81                                                     
                                                                                          
    10.       Percentage of issued class acquired (treasury shares of that class should   
              not be taken into account when calculating percentage):                     
                                                                                          
              Less than 0.1%                                                              
                                                                                          
    11.       Number of shares, debentures or financial instruments relating to shares    
              disposed:                                                                   
                                                                                          
              N/A                                                                         
                                                                                          
    12.       Percentage of issued class disposed (treasury shares of that class should   
              not be taken into account when calculating percentage):                     
                                                                                          
              N/A                                                                         
                                                                                          
    13.       Price per share or value of transaction:                                    
                                                                                          
              £29.5216                                                                    
                                                                                          
    14.       Date and place of transaction:                                              
                                                                                          
              5 August 2015, London                                                       
                                                                                          
    15.       Total holding following notification and total percentage holding following 
              notification (any  treasury shares of that class should not be taken into   
              account when calculating percentage):                                       
                                                                                          
              L C Pentz           27,494                                                  
              J F Walker          11,963                                                  
                                                                                          
    16.       Date issuer informed of transaction:                                        
                                                                                          
              7 August 2015                                                               
                                                                                          
    Name and signature of duly authorised officer of issuer responsible for making        
    notification:                                                                         
                                                                                          
    Angela Purtill                                                                        
    Deputy Company Secretary                                                              
    Tel: +44 (0) 20 7269 8400                                                             
    7 August 2015