Holding(s) in Company

IQE PLC
22 August 2006


IQE PLC

22 August 2006


                                    IQE plc

                          (the 'Company' or 'IQE')


                            Notification of Interest


The Company has been informed by a letter dated 21 August 2006 that UBS AG had a
notifiable interest in 17,263,003 ordinary 1p shares in IQE plc, equivalent to
4.27% of the issued share capital of the Company.


Contacts


IQE plc                                    [phone]

Leslie Coventry



Noble & Company Limited                    [phone]

John Llewellyn-Lloyd

Graeme Bayley


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