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) in accordance  
               with paragraph 26 of the Model Code.                                  
                                                                                     
               A transaction notified in accordance with DTR 3.1.2R                  
                                                                                     
    3.         Name of person discharging managerial responsibilities/director:      
                                                                                     
               S Farrant                                                             
               N P H Garner                                                          
               A M Kelleher                                                          
               R J MacLeod                                                           
               G P Otterman                                                          
               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:                                                             
                                                                                     
               Notification in respect of holdings of the persons named 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:                                       
                                                                                     
               Computershare Trustees Limited                                        
                                                                                     
    8.         State the nature of the transaction:                                  
                                                                                     
               Monthly acquisition of shares via the Johnson Matthey Share Incentive 
               Plan                                                                  
                                                                                     
    9.         Number of shares, debentures or financial instruments relating to     
               shares acquired:                                                      
                                                                                     
               S Farrant     12                                                      
               N P H Garner  12                                                      
               A M Kelleher  15                                                      
               R J MacLeod   12                                                      
               G P Otterman  15                                                      
               J F Walker    12                                                      
                                                                                     
    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:                              
                                                                                     
               £27.4145                                                              
                                                                                     
    14.        Date and place of transaction:                                        
                                                                                     
               19 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):                   
                                                                                     
               R J MacLeod    33,321                                                 
               J F Walker        11,975                                              
                                                                                     
    16.        Date issuer informed of transaction:                                  
                                                                                     
               21 August 2015                                                        
                                                                                     
    17.        Date of grant:                                                        
                                                                                     
               N/A                                                                   
                                                                                     
    18.        Period during which or date on which it can be exercised:             
                                                                                     
               N/A                                                                   
                                                                                     
    19.        Total amount paid (if any) for grant of the option:                   
                                                                                     
               N/A                                                                   
                                                                                     
    20.        Description of shares or debentures involved (class and number):      
                                                                                     
               N/A                                                                   
                                                                                     
    21.        Exercise price (if fixed at time of grant) or indication that price is
               to be fixed at the time of exercise:                                  
                                                                                     
               N/A                                                                   
                                                                                     
    22.        Total number of shares or debentures over which options held following
               notification:                                                         
                                                                                     
               N/A                                                                   
                                                                                     
    23.        Any additional information:                                           
                                                                                     
               N/A                                                                   
                                                                                     
    24.        Name of contact and telephone for queries                             
                                                                                     
               Angela Purtill, Deputy Company Secretary                              
               020 7269 8400                                                         
                                                                                     
    Name and signature of duly authorised officer of issuer responsible for making   
    notification                                                                     
    Angela Purtill                                                                   
                                                                                     
    Date of Notification                                                             
    21 August 2015