Annual Information Update

ANNUAL INFORMATION UPDATE

Johnson Matthey Plc (the "Company") is pleased to provide an annual information
update in accordance with the requirements of Prospectus Rule 5.2. This update
refers to information that has been published or made available by the Company
to the public since 24 July 2009. To avoid an unnecessarily lengthy document,
information is referred to in this update rather than included in full.

The information referred to in this update was up to date at the time the
information was published but some information may, at any time, become out of
date due to changing circumstances.

1.     Announcements made via RNS/Newswire                                     

       24 July 2009       Annual Information Update                            
       27 July 2009       Holding(s) in Company                                       
       4 August 2009      Director/PDMR Shareholding                                  
       5 August 2009      Holding(s) in Company                                       
       5 August 2009      Holding(s) in Company                                       
       6 August 2009      Director/PDMR Shareholding                                  
       20 August 2009     Director/PDMR Shareholding                                  
       26 August 2009     Director/PDMR Shareholding                                  
       3 September 2009   Director/PDMR Shareholding                                  
       21 September 2009  Director/PDMR Shareholding                                  
       1 October 2009     Acquisition - Applied Utility Systems                       
       2 October 2009     Holding(s) in Company                                       
       5 October 2009     Holding(s) in Company                                       
       6 October 2009     Director/PDMR Shareholding                                  
       15 October 2009    Holding(s) in Company                                       
       21 October 2009    Director/PDMR Shareholding                                  
       3 November 2009    JM Enters Into Consultation on UK Pensions                  
       5 November 2009    Holding(s) in Company                                       
       17 November 2009   Holding(s) in Company                                       
       24 November 2009   Director/PDMR Shareholding                                  
       25 November 2009   Half Yearly Report                                          
       27 November 2009   Director/PDMR Shareholding                                  
       2 December 2009    Director/PDMR Shareholding                                  
       4 December 2009    Holding(s) in Company                                       
       22 December 2009   Director/PDMR Shareholding                                  
       5 January 2010     Director/PDMR Shareholding                                  
       11 January 2010    Director/PDMR Shareholding                                  
       14 January 2010    Blocklisting Interim Review                                 
       25 January 2010    Holding(s) in Company                                       
       27 January 2010    Director/PDMR Shareholding                                  
       27 January 2010    Interim Management Statement                                
       28 January 2010    Holding(s) in Company                                      
       29 January 2010    Director/PDMR Shareholding                                  
       4 February 2010    Director/PDMR Shareholding                                  
       4 February 2010    Director/PDMR Shareholding                                  
       8 February 2010    Holding(s) in Company                                       
       23 February 2010   Director/PDMR Shareholding                                  
       5 March 2010       Director/PDMR Shareholding                                  
       8 March 2010       Director/PDMR Shareholding                                  
       15 March 2010      Director/PDMR Shareholding                                  
       15 March 2010      Director/PDMR Shareholding                                  
       23 March 2010      Director/PDMR Shareholding                                  
       23 March 2010      Director/PDMR Shareholding                                  
       7 April 2010       Director/PDMR Shareholding                                  
       26 April 2010      Director/PDMR Shareholding                                 
       13 May 2010        Neil Carson - Appointment as Non-Executive Director of 
                          AMEC plc                                                         
       20 May 2010        Holding(s) in Company                                       
       24 May 2010        Holding(s) in Company                                       
       25 May 2010        Director/PDMR Shareholding                                 
       27 May 2010        JM Announces Consultation on the Future of its Vertec       
                          Business                                                    
       3 June 2010        Final Results                                              
       15 June 2010       Annual Report and Notice of AGM                             
       18 June 2010       Holding(s) in Company                                       
       23 June 2010       Director/PDMR Shareholding                                  
       29 June 2010       Blocklisting Interim Review                                 
       13 July 2010       Holding(s) in Company                                      
       13 July 2010       Director/PDMR Shareholding                                  
       15 July 2010       Announcement - Alan Thomson's Appointment as Chairman of    
                          Hays plc                                                    
       21 July 2010       Result of AGM                                               
       21 July 2010       Interim Management Statement                                
       23 July 2010       Director/PDMR Shareholding                                   
       27 July 2010       Director/PDMR Shareholding                                 
       5 August 2010      Director/PDMR Shareholding                                  
       6 August 2010      Director/PDMR Shareholding                                  
       10 August 2010     Director/PDMR Shareholding                                  
       16 August 2010     Director/PDMR Shareholding                                  
       16 August 2010     Johnson Matthey Announces Divestment of its Vertec Business 
       24 August 2010     Director/PDMR Shareholding                                 
       31 August 2010     Holding(s) in Company                                       
       6 September 2010   Director/PDMR Shareholding                                  
       15 September 2010  Holding(s) in Company                                        
       17 September 2010  Director/PDMR Shareholding                                 
       20 September 2010  Merger Update                                               
       22 September 2010  Director/PDMR Shareholding                                 
       6 October 2010     Acquisition                                                
       8 October 2010     Director/PDMR Shareholding                                  

       Copies of the above announcements can be found on the London Stock Exchange
       website www.londonstockexchange.com and on the Company's website 
       www.matthey.com

2.     Documents filed at Companies House                                      

       All of the documents listed below were filed at Companies House on or around
       the dates indicated.

       Date             Document Type

       25 July 2009     288b - Terminating appointment as Director or Secretary
       25 July 2009     288b - Terminating appointment as Director or Secretary
       27 July 2009     AGM Resolutions
       27 July 2009     123 - Notice of increase in nominal capital
       30 July 2009     288a - Appointment of Director or Secretary
       6 August 2009    Annual Accounts
       25 August 2009   363a - Annual Return
       27 August 2009   288c - Change of particulars for Director or Secretary
       8 September 2009 288b - Terminating appointment as Director or Secretary
       20 October 2009  CH03 - Change of secretary's details
       20 October 2009  CH01 - Change of director's details
       20 October 2009  CH01 - Change of director's details
       20 October 2009  CH01 - Change of director's details
       20 October 2009  CH01 - Change of director's details
       20 October 2009  CH01 - Change of director's details
       20 October 2009  CH01 - Change of director's details
       20 October 2009  CH01 - Change of director's details
       30 July 2010     AGM Resolutions
       3 August 2010    Annual Accounts
       17 August 2010   CH01 - Change of director's details
       17 August 2010   CH01 - Change of director's details
       17 August 2010   AD02 - Notification of a Single Alternative Inspection Location(SAIL)
       18 August 2010   AR01 - Annual Return
       18 August 2010   Latest Statement of Capital

       Copies of documents filed at Companies House can be obtained from Companies
       House or from the Company Secretary, Johnson Matthey PLC, 40-42 Hatton Garden,
       London EC1N 8EE.

3.     Documents sent to shareholders

       The following documents were published and sent to shareholders. They are
       available on the Company's website www.matthey.com

       Date           Document                                                        
                                                                               
       15 June 2010   Annual Report and Accounts for the year ended 31/03/10       
       15 June 2010   Circular to Shareholders including Notice of Annual General     
                      Meeting                                                         

For further enquires, contact

Angela Purtill, Deputy Company Secretary, Johnson Matthey Plc 
Telephone: [phone]