Holding(s) in Company

Radstone Technology PLC
19 January 2006

The Company has received the following notification:



                                             J O Hambro Capital Management Group
                                                                    Ground Floor
                                                                     Ruder Court
                                                                 14 Ruder Street
                                                                          London
                                                                        SW1Y 6QB
                                                              Tel: [phone]




19 January 2006



N Novakovic ACA
Company Secretary
Radstone Technology plc
Water Lane
Towcester
Northamptonshire
NN12 6JN





Dear Sir



Notification of Substantial Shareholding



We hereby advise you pursuant to Section 198 of the Companies Act 1985, as
amended by Section 134 of the Companies Act 1989, that due to a sale of shares
on 18 January 2006, JOHCM OHIC Managers LLP as discretionary investment manager
of a UCITS no longer has a notifiable interest in Radstone Technology PLC.



This calculation is based on an issued share capital of 30,299,640 Ordinary
Shares of 12.5p each.



Yours faithfully

For and on behalf of JOHCM OEIC Managers LLP







Bonita Guntrip
Assistant Company Secretary
Designated Members
J O Hambro Capital Management Limited
J O Hambro Capital Management Group Limited


                      This information is provided by RNS
            The company news service from the London Stock Exchange