Holding(s) in Company

Radstone Technology PLC
07 February 2006

The Company has received the following notification:



                                                  Barclays Corporate Secretariat
                                                               1 Churchill Place
                                                                          London
                                                                         E14 5HP

06 February 2006


The Company Secretary
Radstone Technology PLC
Tove Valley Business Park
Towcester
Northamptonshire
NN12 6JN


Dear Sir


Companies Act 1985 ("The Act") - Part VI

I hereby inform you that as at 2 February 2006 Barclays PLC, through the legal
entities listed on the attached schedule, has a notifiable interest in the
capital of your Company of 3.47%.

Details of this interest, together with a breakdown between registered holders
(as required by Section 202(3) of the Act), are enclosed.

The issued capital of 30,318,640 is the latest figure available to us. If this
is incorrect please let me know.


If you have any questions arising from this letter, please contact me on 020
7116 2913.



Yours faithfully


Geoff Smith



                             Legal Entity Report


Radstone Tech.
                             Sedol: 0720483



As at 02 February 2006 Barclays PLC, through the legal entities listed below,
had a notifiable interest in 1,050,754 ORD GBP0.125 representing 3.47% of the
issued share capital of 30,318,640 units.



Legal Entity                        Holding               Percentage Held

Barclays Life Assurance Co Ltd      112,364               .3706

Barclays Global Investors Ltd       936,237               3.0880

Gerrard Ltd                           2,153               .0071

Group Holding                     1,050,754               3.4657




                           REGISTERED HOLDERS REPORT



Radstone Tech.                                Sedol: 0720483



As at 02 February 2006 Barclays PLC, through the registered holders listed
below, had a notifiable interest in 1,050,754 ORD GBP0.125 representing 3.47% of
the issued share capital of 30,318,640 units.



Registered Holder                             Account Designation   Holding

Chase Nominees Ltd                            16376                 20,833

Chase Nominees Ltd                            21359                 87,812

Chase Nominees Ltd                            28270                  8,268

Chase Nominees Ltd                            28270                 17,043

JP Morgan (BGI Custody)                       16341                 37,195

JP Morgan (BGI Custody)                       16341                 17,040

JP Morgan (BGI Custody)                       16344                 10,856

JP Morgan (BGI Custody)                       16345                 21,962

JP Morgan (BGI Custody)                       16400                360,960

JP Morgan (BGI Custody)                       16480                299,723

JP Morgan (BGI Custody)                       16482                147,142

JP Morgan (BGI Custody)                       18409                 19,767

R C Greig Nominees Limited                                           2,153

                                             Total               1,050,754


                      This information is provided by RNS
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