Holding(s) in Company

Radstone Technology PLC
11 April 2006

The company has received the following announcements:



                                              Gartmore Investment Management Plc
                                                                  Gartmore House
                                                               8 Fenchurch Place
                                                                          London
                                                                        EC3M 4PB
                                                              Tel: [phone]


The Company Secretary
Radstone Technology Plc
Tove Valley Business Park
Towcester
Northhamptonshire
NN12 6JN



7 April 2006





Our Ref: RDU/198D10%+88

020 7782 2804





Dear Sir/Madam



RE : RADSTONE TECHNOLOGY PLC



We, Gartmore Investment Limited (GIL), Gartmore Fund Managers Limited (GFM) and
Gartmore Global Partners (GGP), write to advise you pursuant to Section 198 of
the Companies Act 1985 (the "Act") as amended by the Disclosure of Interest in
Shares (amendment) Regulations 1993, that we no longer have a reportable
interest in your company, by virtue of a sale of 187,786 shares on 5th April
2006.



As a result, our aggregate discretionary holding is now 9.89%.



Yours Faithfully
For and on behalf of Gartmore Investment Management plc


Alan Buddles
Head of Restrictions and Disclosures Unit


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