Holding(s) in Company

IQE PLC
18 August 2006

IQE plc



18 August 2006




                                    IQE plc

                          (the ''Company'' or ''IQE'')

                            Notification of Interest



The Company has been informed by a letter dated 17 August 2006 that UBS AG had a
notifiable interest in 17,063,003 ordinary 1p shares in IQE plc as at close of
business on 15 August 2006, equivalent to 4.22% 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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