Annual Information Update

Diploma PLC
06 December 2006



                                                         FOR IMMEDIATE RELEASE

   6 December 2006

                                  DIPLOMA PLC
                            ANNUAL INFORMATION UPDATE

   In accordance with Prospectus Rule 5.2 the following information has been
   published or made available to the public in the last twelve months ended 6
   December 2006.

   The following regulatory announcements have been made via the Regulatory News
   Service provided by the London Stock Exchange, through which copies can be
   obtained.

   Date of Announcement                  Regulatory Headline
                                                                     
   08.12.05                              Holding(s) In Company
   15.12.05                              Directors' Interest In Shares
   11.01.06                              Trading Update
   11.01.06                              AGM Statement
   23.01.06                              Holding(s) In Company
   25.01.06                              The Impact Of International Financial 
                                         Reporting Standards ('IFRS')
   27.01.06                              Holding(s) In Company
   07.02.06                              Holding(s) In Company
   08.02.06                              Holding(s) In Company
   20.02.06                              Holding(s) In Company
   06.03.06                              Holding(s) In Company
   16.03.06                              Holding(s) In Company
   29.03.06                              Holding(s) In Company
   08.05.06                              Announcement Of Interim Results
   09.05.06                              Holding(s) In Company
   09.06.06                              Holding(s) In Company
   20.06.06                              Holding(s) In Company
   02.08.06                              Holding(s) In Company
   07.08.06                              Holding(s) In Company
   03.10.06                              Holding(s) In Company
   11.10.06                              Diploma acquires CBISS Limited
   11.10.06                              Holding(s) In Company
   23.10.06                              Holding(s) In Company
   27.10.06                              Holding(s) In Company
   02.11.06                              Holding(s) In Company
   08.11.06                              Directors' Interest In Shares
   13.11.06                              Announcement Of Preliminary Results
   14.11.06                              Director/PDMR Shareholding
   20.11.06                              Holding(s) In Company
   27.11.06                              Holding(s) In Company
   30.11.06                              Directors' Interest in Shares
   04.12.06                              Holding(s) In Company
   06.12.06                              2006 Report and Accounts Filing 
                                         With DVF

   In accordance with the provisions of Article 27.3 of the Prospectus Directive
   Regulation, we confirm that to the best of our knowledge, information
   relating to 'Holding(s) in Company' and 'Director Shareholding' is up to date
   at the date of this Announcement, but it is acknowledged that such
   disclosures may, at any time, become out of date, due to changing
   circumstances.

   Details of all regulatory headlines listed above can be downloaded from the
   Company's website at www.diplomaplc.com and any related documents are
   available at the UKLA's Document Viewing Facility, Financial Services
   Authority, 25 The Colonnade, Canary Wharf, London E14 5HS.

   The Company has made no filings with Companies House during the 12 months
   ended 6 December 2006, except for the Annual Return and the Annual Report and
   the Financial Statements for the year ended 30 September 2005. Copies of
   these documents can be found on the Companies House website at
   www.direct.companies.gov.uk


   For further enquiries please contact:

   Nigel Lingwood, Group Finance Director       020 7448 4875



   NOTE TO EDITORS:

   Diploma PLC is an international group of specialised distribution businesses
   operating in three sectors:

   Life Sciences - suppliers of consumables, instrumentation and related
   services to research, environmental and clinical diagnostic laboratories.
   Principal companies are Anachem, a1-envirosciences and CBISS in Europe and
   Somagen in Canada.

   Seals - Suppliers of hydraulic seals, gaskets, cylinders and attachment kits
   for heavy mobile machinery. Principal companies are Hercules Bulldog Sealing
   Products and HKX in North America and FPE in the UK.

   Controls - Suppliers of specialised wiring, connectors, control devices and
   fasteners for a range of technically demanding applications. Principal
   companies are IS Group in the UK and US, Sommer Filcon in Germany and Hawco
   in the UK.

   Within each of these sectors, the Diploma businesses serve industry segments
   with long term growth potential and with the opportunity for sustainable
   superior margins through the quality of customer service, depth of technical
   support and value adding activities.

   Further information on Diploma PLC can be found at www.diplomaplc.com




                      This information is provided by RNS
            The company news service from the London Stock Exchange