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 20 October 2010. 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information was published but some information may, at any time, become out of
date due to changing circumstances.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                                     

       27 October 2010     Director/PDMR Shareholding                                
       2 November 2010     Acquisition                                        
       17 November 2010    Holding(s) in Company                             
       19 November 2010    Holding(s) in Company                             
       19 November 2010    Merger Update                                   
       22 November 2010    Holding(s) in Company                              
       23 November 2010    Holding(s) in Company   
       23 November 2010    Director/PDMR Shareholding                                
       24 November 2010    Holding(s) in Company                                     
       24 November 2010    Half Yearly Report                                 
       6 December 2010     Merger Update                                      
       7 December 2010     Director/PDMR Shareholding                                
       13 December 2010    Blocklisting - Interim Review                      
       13 December 2010    Blocklisting - Interim Review                      
       13 December 2010    Blocklisting - Interim Review                      
       21 December 2010    Director/PDMR Shareholding                        
       23 December 2010    Director/PDMR Shareholding                        
       23 December 2010    Director/PDMR Shareholding                         
       29 December 2010    Director/PDMR Shareholding                         
       6 January 2011      Director/PDMR Shareholding                         
       13 January 2011     Directorate Change                                 
       13 January 2011     Directorate Change                                
       17 January 2011     Holding(s) in Company                             
       26 January 2011     Director/PDMR Shareholding                         
       2 February 2011     Director/PDMR Shareholding                        
       2 February 2011     Interim Management Statement                       
       3 February 2011     Director/PDMR Shareholding                         
       9 February 2011     Director/PDMR Shareholding                         
       10 February 2011    Director/PDMR Shareholding                         
       21 February 2011    Director/PDMR Shareholding                         
       22 February 2011    Director/PDMR Shareholding                        
       2 March 2011        Holding(s) in Company                              
       9 March 2011        Director/PDMR Shareholding                         
       9 March 2011        Director/PDMR Shareholding                         
       16 March 2011       Holding(s) in Company                             
       22 March 2011       Holding(s) in Company                              
       22 March 2011       Director/PDMR Shareholding                         
       12 Apr 2011         Director/PDMR Shareholding                        
       21 April 2011       Director/PDMR Shareholding                         
       3 May 2011          Director/PDMR Shareholding                         
       6 May 2011          Director/PDMR Shareholding                         
       9 May 2011          Director/PDMR Shareholding                         
       24 May 2011         Director/PDMR Shareholding                         
       31 May 2011         Holding(s) in Company                              
       1 June 2011         Senior Independent Director/Chairman of MDRC       
       2 June 2011         Final Results                                      
       3 June 2011         Director/PDMR Shareholding                         
       9 June 2011         Blocklisting - Interim Review                      
       15 June 2011        Annual Report and Notice of AGM                    
       20 June 2011        Director/PDMR Shareholding                         
       1 July 2011         Director Declaration                               
       11 July 2011        Director/PDMR Shareholding                         
       19 July 2011        Interim Management Statement                       
       19 July 2011        AGM Results                                        
       19 July 2011        Directorate Change                                 
       21 July 2011        Director/PDMR Shareholding                         
       25 July 2011        Director/PDMR Shareholding                         
       27 July 2011        Director/PDMR Shareholding                                

       Copies of the above announcements can be found on the London Stock Exchange
       website www.londonstockexchange.com, the National Storage Mechanism (NSM)
       website www.hemscott.com/nsm.do 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 and Description                                   
                                                                             
       26/11/2010   Form AD01 - change of registered office address                 
       21/01/2011   Form AP01 - Appointment of Mr Alan M Ferguson                   
       07/02/2011   Form CC04 - Statement of Company's Objects                     
       03/03/2011   Form AR01 - 2010 Annual Return re-filed                         
       08/03/2011   Form CH01 - Change of Address (Sir Thomas Harris)              
       08/04/2011   Form AP01 - Appointment of Mr Timothy E P Stevenson             
       22/07/2011   AGM Resolutions                                                 
       25/07/2011   Form TM01 - Resignation of Mr Alan M Thomson                    
       25/07/2011   Form TM01 - Resignation of Mr Robert J W Walvis                 
       25/07/2011   Form TM01 - Resignation of Sir John Banham                      
       02/08/2011   Form AR01 - Annual Return                                       

       Copies of documents filed at Companies House can be obtained from Companies
       House or from the Company Secretary, Johnson Matthey PLC, 5th Floor, 25
       Farringdon Street, London EC4A 4AB.

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 and copies of these
       documents have been filed with the Financial Services Authority and can be
       viewed on the NSM website www.hemscott.com/nsm.do.

       Date           Document                                                        
                                                                               
       15 June 2011   Annual Report and Accounts for the year ended 31/03/11          
       15 June 2011   Circular to Shareholders including Notice of Annual General Meeting


For further enquires, contact

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