Director/PDMR Shareholding

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 LR 9.8.6R(1) 
        or (iii) a disclosure made in accordance with section 793 of the Companies Act 2006: 
                                                                               
        In accordance with DTR 3.1.2R                                          
                                                                               
3.      Name of person discharging managerial responsibilities/director:       
                                                                               
        Mr D W Morgan                                                          
                                                                               
4.      State whether notification relates to a person connected with a person 
        discharging managerialresponsibilities/director named in 3 and identify 
        the connected person:
                                                                               
        Notification relates to Mr D W Morgan (director) and his son 
        Mr C G W Morgan (connected person)                                              
                                                                               
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:                               
                                                                               
        In respect of holdings of the persons named in 4 above                 
                                                                               
6.      Description of shares (including class), debentures or derivatives or  
        financial instruments relating to shares:                                                                
                                                                               
        Ordinary Shares of £1 each                                             
                                                                               
7.      Name of registered shareholders(s) and, if more than one, the number of
        shares held by each of them:                                           
                                                                               
        Mr D W Morgan (prior to the transaction)                               
        Mr C G W Morgan (following the transaction)                            
                                                                               
8.      State the nature of the transaction:                                   
                                                                               
        Gifting of 100 ordinary shares of £1 each by Mr D W Morgan to Mr C G W 
        Morgan                                                                 
                                                                               
9.      Number of shares, debentures or financial instruments relating to 
        shares acquired:                                                       
                                                                               
        Mr C G W Morgan - 100 ordinary shares of £1 each                                                      
                                                                               
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:                                                       
                                                                               
        Mr D W Morgan - 100 ordinary shares of £1 each                         
                                                                               
12.     Percentage of issued class disposed (treasury shares of that class     
        should not be taken into account when calculating percentage):                                               
                                                                               
        Less than 0.1%                                                         
                                                                               
13.     Price per share or value of transaction:                               
                                                                               
        N/A                                                                    
                                                                               
14.     Date and place of transaction:                                         
                                                                               
        3 September 2008, 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):                                                           
                                                                               
        Mr D W Morgan's total holding remains unchanged                                                      
                                                                               
16.     Date issuer informed of transaction:                                   
                                                                               
        3 September 2008                                                       
                                                                               
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, Assistant Company Secretary                            
                                                                               
        020 7269 8461                                                          

Name and signature of duly authorised officer of issuer responsible for making
notification:

Angela Purtill

Date of Notification:

4 September 2008