Holding(s) in Company

IQE PLC
18 June 2007

IQE PLC
18 June 2007

                                    IQE plc

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

                            Notification of Interest

The Company was informed on 18 June 2007 that Cazenove Capital Management
Limited had a notifiable interest of 18,698,000 ordinary 1p shares in IQE, being
4.34% of the issued share capital of the Company.

The total number of the Company's ordinary shares of 1p in issue is 430,762,168.

Contacts

IQE plc                                                [phone]
Leslie Coventry

Noble & Company Limited                                [phone]
John Llewellyn-Lloyd
Graeme Bayley




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