Holding(s) in Company

Radstone Technology PLC
19 July 2006


FOR IMMEDIATE RELEASE
19 July 2006

                    Radstone Technology PLC (the 'Company')
                               Holding in Company

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The Company has been informed that Water Lane Trustees Limited, the Trustee of
the Radstone Technology Employee Trust, distributed 13,110 ordinary shares of
12.5p each in the Company to certain employees including Jeff Perrin, the Chief
Executive, on 18 July 2006. These represented shares held by the Trust as part
of the bonuses earned by senior executives of the Company in prior years, the
ownership became unconditional on 1 July 2006, hence triggering the
distribution.

In addition to, and at the same time as this distribution, the Trust disposed of
11,317 ordinary shares at £2.685 per share in order to meet the tax and national
insurance liabilities of the beneficiaries of the Trust.

Following the disposals, the shareholdings of the Trust and the relevant
Director of the Company, who received shares from the Trust, are as follows:

Name                  Number of shares (disposed     Current       % of issued 
                      of)/ received                  Holding       share capital
Radstone Technology     (24,427)                     178,916          0.59
Employee Trust

JL Perrin                8,443                       382,149          1.26




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