Holding(s) in Company

Radstone Technology PLC
07 February 2006


Letter to Radstone Technology PLC dated 3rd February 2006

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 1995 (the "Act") as amended by the Disclosure of Interest in 
Shares (amendment) Regulations 1993, that we now have a reported interest in 
your company due to the purchase of 373,374 shares on 2nd February 2006.

1.     This notification relates to the Ordinary GBPO.l 25 share capital of 
       Radstone Technology plc.

2.     The number of shares of the person(s) with an interest, for the purposes 
       of Section 208 and 209 of the Act, immediately after the time when the 
       obligation arose, are shown on the attached schedule.

3.     The identities of the registered holders of these shares and the number 
       of shares held by each holder, so far as is known at the date of this 
       notification, are shown on the attached schedule.

4.     The percentages quoted on the attached schedule are based on your issued 
       share capital of 30,318,640 as advised to us by Exshare.

5.     The total number of shares comprises the aggregated holdings controlled 
       by GIL, GFM and GGP, as discretionary investment managers of the clients 
       and client funds listed on the attached schedule and; accordingly having 
       voting power in respect of the shares and power to dispose of them.

6.     The shares are held for investment purposes only for the clients and 
       client funds concerned and we do not know of anyone who is party to any 
       agreement to which Section 204 of the "Act" applies

For and on behalf of Gartmore Investment Management 

                      CURRENT HOLDINGS BY FUND MANAGER
REPORT: S212                                                                                 03 FEB 2006 
STOCK LINE: 0720483   RADSTONE TECH ORD GBPO.125

Fund                  Number of   Issued  Percentage  UK
Managing             Shares Held   Share  of Issued   Registered                Beneficial
Co                                Capital  Capital    Owner             Fund    Owner
                                                      HSBC GLOBAL               GARTMORE FUND MANAGERS LTD
Gartmore Fund                                         CUSTODY NOMINEE           A/C GARTMORE UK & IRISH
Managers Limited      1,201,288              3.962%   UK LTD            56690   SMALLER COMPANIES

                                                      VIDACOS                   GARTMORE FUND MANAGERS LTD
Gartmore Fund                                         NOMINEES                  A/C GARTMORE UK INDEX
Managers Limited          8,869              0.029%   LIMITED G A/C     UKIND   TRUST
                     __________           ________
                      1,210,157              3.991%

Gartmore                                              
Investment                                            BNY GIL CLT A/C           GARTMORE SMALLER
Limited                 375,483              1.238%   NOMS LTD A/C LST   LST    COMPANIES TRUST PLC


Gartmore                                                                        GARTMORE SICAV PAN
Investment                                            BANK OF BERMUDA           EURO SMALLER
Limited                 353,264              1.165%   LUXEMBOURG         SICAV3 COMPANIES FUND

Gartmore 
Investment                                            NORTRUST                  STRATHCLYDE PENSION
Limited                 691,369              2.280%   NOMINEES LTD       54550  FUND

Gartmore 
Investment                                            HSBC GLOBAL               SWISS FEDERAL SOCIAL
Limited                 620,311              2.046%   INVESTOR SERVICES  63165  SECURITY FUND 

Page 2 of 2

Gartmore                                              
Investment                                            BNY GIL CLT A/C           GARTMORE GROWTH
Limited                 152,286              0.502%   NOMS LTD A/C NWSC  56640  OPPORTUNITIES PLC
                      _________           ________
                      2,192,733              7.232%
                      _________           ________

                      3,402,890 30,318,640  11.224%
                      _________ __________ _______

                      End of Report

From Gartmore Investment Management PLC


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