Holding(s) in Company

Radstone Technology PLC
09 December 2004

The Company has received the following notifications:

                                   M&G Investment Management Limited
                                   Laurence Pountney Hill
                                   London EC4R 0HH

6 December 2004

The Company Secretary
Radstone Technology plc
Water Lane
Towcester
Northamptonshire
NN12 6JN

Fax: [phone]

Dear Sir/Madam

Companies Act 1985  
Disclosures of Interests in Shares  

In compliance with Part IV of the above Act, as amended (the "Act"), we write to inform you that Prudential plc and
certain of its subsidiary companies have a notifiable interest in the issued share capital of your company as
detailed in the attached schedule

For the purposes of S210 of the Act, the address for those companies identified in the attached schedule is Laurence
Pountney Hill London EC4R OHH.

Yours faithfully

Richard Harding
For and on behalf of Prudential plc

Direct Line: 020 7548 3183
Direct Fax: [phone]

Notifiable Position Report for RADSTONE TECH. ORD GBP0.125 
As at 03 December 2004 

Percentage holdings are calculated using an issued share capital of 30,072,860 ORD GBP0.125 shares 

     Registered Holder                    Holding        % 
 
Prudentual plc                            4,116,439      13.58 Total Notifiable Interest 
     BK OF NEW YORK (NOMS) LTD 636922     163,873 
     CHASE NOMS LTD                       19,428 
     NORTRUST NOMINEE LTD A/C MHFO1        8,482 
     NORTRUST NOMINEE LTD A/C/ MKMO1     894,565 
     NORTRUST NOMS LTD                   454,459 
     NORTRUST NOMS LTD A/C MEL01         275,336 
     NORTRUST NOMS LTD A/C PUQ0          427,229 
     PRUCLT HSBC GIS NOM(UK) PA AC     1,191,240 
     PRUCLT HSBC GIS NOM(UK) PPL AC      381,827 
 
M&G Group Limited                      4,116,439      13.58      
     BK OF NEW YORK (NOMS) LTD 636922    463,873 
     CHASE NOMS LTD                       19,428 
     NORTRUST NOMS LTD A/C MHF01           8,482 
     NORTRUST NOMS LTD A/C MKM01         894,565 
     NORTRUST NOMS LTD                   454,459 
     NORTRUST NOMS LTD A/C MEL01         275,336 
     NORTRUST NOMS LTD A/C/ PUQ01        427,229 
     PRUCLT HSBC GIS NOM(UK) PAC AC    1,191,240 
     PRUCLT HSBC GIS NOM(UK) PPLC AC     381,827 
 
M&G Investment Management Ltd          3,644,084     12.03 
     CHASE NOMS LTD     19,428 
     NORTRUST NOMINEES LTD A/C MKM01     894,565 
     NORTRUST NOMS LTD                   454,459 
     NORTRUST NOMS LTD A/C MEL01         275,336 
     NORTRUST NOMS LTD A/C/ PUQ01        427,229 
     PRUCLT HSBC GIS NOM(UK) PAC AC    1,191,240 
     PRUCLT HSBC GIS NOM(UK) PPLC AC     381,827 
 
M&G Limited                            4,116,439     13.58  
     BK OF NEW YORK (NOMS) LTD 636922    463,873 
     CHASE NOMS LTD                       19,428 
     NORTRUST NOMS LTD A/C MHF01           8,482 
     NORTRUST NOMS LTD A/C MKM01         894,565 
     NORTRUST NOMS LTD                   454,459 
     NORTRUST NOMS LTD A/C MEL01         275,336 
     NORTRUST NOMS LTD A/C/ PUQ01        427,229 
     PRUCLT HSBC GIS NOM(UK) PAC AC    1,191,240 
     PRUCLT HSBC GIS NOM(UK) PPLC AC     381,827 
 
The Prudential Assurance Company Limited 1,573,067   5.19  
     PRUCLT HSBC GIS NOM(UK) PAC AC      1,191,240      
     PRUCLT HSBC GIS NOM(UK) PPL AC        381,827 
      
 
 
      
The company has also received the following announcement:

     Fidelity Investments
     Windmill Count
     Millfield Lane
     Lower Kingswood
     Tadworth
     Surrey KT20 6RG

     07 December 2004

Radstone Technology Plc
Water Lane
Towcester
Northamptonshire, NN12 6JN
United Kingdom

Fax: [phone]

ATTN: Company Secretary

Dear Sirs,

Enclosed are amended notifications of disclosable interests under the U.K. Companies Act 1985. Please note that while
this information details the disclosable interest of more than one entity, the enclosed disclosure constitutes
separate notifications of interest which have been combined solely for purposes of clarity and efficiency. It is not
intended to indicate that any of these entities act as a group or in concert with respect to these interests.

These disclosures are made in the interest of conformity with the Companies Act. The Interest detailed herein were
acquired solely for investment purposes. For disclosure purposes, holdings should be represented as FMR Corp. and its
direct and indirect subsidiaries, and Fidelity International Limited (FIL) and its direct and indirect subsidiaries,
both being non-beneficial holders.

If you have any questions please contact Kerrie Barnet on [phone] or by FAX on [phone].

Kindest regards

Kerrie Barnett
Regulatory Reporting Analyst

Amendment #6

NOTIFICATIONS UNDER SECTION1 98 TO 202 - U.K. COMPANIES ACT

1.     Company in which shares are held:     Radstone Technology Plc

 
     Notifiable Interest: Ordinary Shares

(a)     FMR Corp.
        82 Devonshire Square
        Boston, MA 02109

     Parent holding company of Fidelity Management and Research Company (FMRCO), investment manager for US mutual
funds and Fidelity Management Trust Company (FMTC), a US state chartered bank which acts as a trustee or investment
manager of various pension and trust accounts. (See Schedule A for listing of Registered Shareholders and their
holdings).

(b)       Fidelity International Limited (FIL)
          P.O. Box HM 670
          Hamilton HMCX, Bermuda

     Parent holding company for various direct and indirect subsidiaries. (See Schedule A for listing of Registered
Shareholders and their holdings.)

3.     The notifiable interests also comprise the notifiable interest of:

          Mr. Edward C Johnson 3d
          82 Devonshire Street
          Boston, MA 02109

     A principal shareholder of FMR Corp. and Fidelity International Limited

4.     The notifiable interests include interest held on behalf of authorized unit trust schemes in the U.K.,
notwithstanding the exemption from reporting pursuant to Section 209 (1)(h) of the Companies Act 1985.

5.     These notifications of disclosable interests constitute separate notifications of interest in the shares and
are combined solely for the purposes of clarify and efficiency. Nothing herein should be taken to indicate that FMR
Corp. and its direct and indirect subsidiaries, Fidelity International Limited and its direct and indirect
subsidiaries or Mr. Edward C. Johnson 3d act as a group or in concert in respect of the disclosed interests, or that
they are required to submit these notifications on a joint basis.

6.     The disclosable interests arise under section 208(4)(b) of the Act, namely where a person, not being the
registered holder, is entitled to exercise a right conferred by the holding of the shares or to control the exercise
of such rights, or under section 203 of the Act respectively.

     By Rani Jandu
     Regulatory Reporting Manager, FIL
     - Investment Compliance
     Duly authorised under Powers of Attorney
     dated July 9, 2004 by Eric D. Roiter by and
     on behalf of FMR Corp. and its direct and
     indirect subsidiaries, and Fidelity International
     Limited and its direct and indirect
     subsidiaries

Schedule A                                                                     Amendment #6
Security: Radstone Technology Plc

                                                                                                         
               Ordinary Shares    Shares Held  Management Company   Nominee/Registered Name              
                                       83,000          FIL          Brown Brothers Harriman and Co Total 
                                      558,578          FIL          Brown Bros Harriman Ltd LUX Total    
                                       72,359          FIL          State Str BK and TR Co LNDN Total    
                                      356,700         FISL          JP Morgan, Bournemouth Total         
                                      225,000         FMRCO         Brown brothers Harriman and Co Total 
                                      150,000         FMTC          State Street Bank and TR Co Total    
                                       16,661          FPM          Bank of New York Brussels Total      
                                       64,106          FPM          Citibank London Total                
                                       13,500          FPM          Clydesdate Bank plc Total            
                                       17,503          FPM          HSBC Bank Plc Total                  
                                       50,974          FPM          JP Morgan Bournmouth Total           
                                        5,200          FPM          Northern Trust London total          
                                       23,741          FPM          State Str Bk and TR co Ldn Total     
                                    1,637,322                       Grand Total Ordinary Shares          
                                                                                         
      Current ownership 
            percentage:                        5.45% 
                                                                                         
       Shares in issue:            30,032,860 
                                                                                         
Change in holdings since 
last filing:                         (127,182)  
                                 ordinary shares 
 
     
 
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