Additional Listing

30 March 2011

Oxford Instruments plc.

Additional Listing.

Application has been made to The UK Listing Authority and The London Stock
Exchange for block listings totalling 269,610 Ordinary shares of 5 pence each
to trade on The London Stock Exchange and to be admitted to The Official List.
The shares shall rank equally with the existing issued shares of the Company.

The Block listings consist of 44,610 shares to be issued under the Save As You
Earn Scheme and 225,000 shares to be issued under the Executive Share Option
Scheme.

Enquiries:

Oxford Instruments plc

Susan Johnson-Brett, Company Secretary Tel: [phone]

Email: [e-mail]