Annual Information Update

Oxford Instruments plc - Annual Information Update

12 May 2010

Oxford Instruments plc (the `Company) is pleased to provide an annual
information update, in accordance with the requirements of the Prospectus Rule
5.2. This update refers to information that has been published or made
available by the Company to the public up to 30 April 2010. To avoid an
unnecessarily lengthy document, information is referred to in the 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information was published but some information may now be out of date.

 1. Regulatory Announcements
   
Date                             Description of Document                       
                                                                               
1 June 2009                      Price Monitoring Extension (x2)               
                                                                               
                                 Director/PDMR Shareholding                    
                                                                               
9 June 2009                      Dividend Timetable                            
                                                                               
                                 Final Results & Interim Management Statement  
                                                                               
11 June 2009                     Annual Information Update                     
                                                                               
18 June 2009                     Holdings in Company                           
                                                                               
19 June 2009                     Price Monitoring Extension (x2)               
                                                                               
30 June 2009                     Director/PDMR Shareholding                    
                                                                               
2 July 2009                      Oxford Instruments named in FTSE Green Index  
                                                                               
8 July 2008                      Blocklisting - Interim Review                 
                                                                               
16 July 2009                     £30m ITER contract                            
                                                                               
30 July 2009                     Director/PDMR Shareholding (x2)               
                                                                               
2 September 2009                 Director/PDMR Shareholding                    
                                                                               
15 September 2009                AGM Statement                                 
                                                                               
16 September 2009                Result of AGM                                 
                                                                               
28 September 2009                Director/PDMR Shareholding                    
                                                                               
30 September 2009                Director/PDMR Shareholding                    
                                                                               
2 October 2009                   Oxford Instruments wins second ITER contract  
                                                                               
20 October 2009                  Notice of Results                             
                                                                               
27 October 2009                  New Segmental Reporting Structure             
                                                                               
2 November 2009                  Director/PDMR Shareholding                    
                                                                               
17 November 2009                 Half Yearly Report                            
                                                                               
23 November 2009                 Holdings in Company                           
                                                                               
1 December 2009                  Director/PDMR Shareholding                    
                                                                               
                                 Total Voting Rights                           
                                                                               
7 December 2009                  Holdings in Company                           
                                                                               
18 December 2009                 Director/PDMR Shareholding (x2)               
                                                                               
5 January 2010                   Director/PDMR Shareholding                    
                                                                               
8 January 2010                   Blocklisting - Interim Review                 
                                                                               
20 January 2010                  Interim Management Statement                  
                                                                               
21 January 2010                  Holdings in Company                           
                                                                               
27 January 2010                  Holdings in Company                           
                                                                               
29 January 2010                  Director/PDMR Shareholding                    
                                                                               
2 February 2010                  Total Voting Rights                           
                                                                               
8 February 2010                  Director/PDMR Shareholding                    
                                                                               
25 February 2010                 Holdings in Company                           
                                                                               
1 March 2010                     Director/PDMR Shareholding                    
                                                                               
4 March 2010                     Total Voting Rights                           
                                                                               
16 March 2010                    Analyst Event                                 
                                                                               
30 March 2010                    Director/PDMR Shareholding                    
                                                                               
6 April 2010                     Total Voting Rights                           
                                                                               
8 April 2010                     Trading Update                                

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

24 July 2009                      363a - Annual Return (full list of members)  
                                                                               
17 September 2009                 288b - Resignation of Director               
                                                                               
18 September 2009                 AA - Annual Accounts                         
                                                                               
23 September 2009                 Res 09 - Authority to purchase shares        
                                                                               
                                  Res 01 - Alteration to Articles              
                                                                               
                                  Res 13 - Call AGM on 14 days' notice         
                                                                               
                                  Mem/Arts - Articles of Association           
                                                                               
2 October 2009                    Res 04 - Increase in authorised share capital
                                                                               
                                  123 - Increase in authorised share capital   
                                                                               
7 October 2009                    CH01 - Change to directors' particulars (x4) 
                                                                               
                                  CH03 - Change to secretary's particulars     
                                                                               
8 October 2009                    CH01 - Change to director's particulars      
                                                                               
18 October 2009                   CH01 - Change to director's particulars      
                                                                               
26 November 2009                  SH01 - Statement of Capital                  
                                                                               
26 January 2010                   SH01 - Statement of Capital                  
                                                                               
2 February 2010                   SH01 - Statement of Capital                  
                                                                               
2 March 2010                      SH01 - Statement of Capital                  
                                                                               
6 April 2010                      SH01 - Statement of Capital                  

A copy of this Annual Information Update and copies of the documents referred
to in it can be obtained from the Company Secretarial Department at the
Company's registered office:

Oxford Instruments plc

Tubney Woods

Abingdon

Oxon

OX13 5QX

Telephone [phone]