Total Voting Rights

IQE plc

(“IQE” or the “Company”)

29 June 2018

As at 29 June 2018, the Company’s issed share capital consisted of 760,800,357 ordinary shares of 1 pence each (“Ordinary Shares”). All of these Ordinary Shares carry voting rights of one vote per Ordinary Share. The Company holds no Ordinary Shares in treasury.

The total number of voting rights in the Company is therefore 760,800,357. The above figures may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the Financial Conduct Authority's Disclosure Guidance and Transparency Rules.

Contacts:

IQE plc (+44 29 2083 9400) Chris Meadows

Canaccord Genuity (+ 44 20 7523 8000)Simon BridgesHenry Fitzgerald-O’ConnorRichard Andrews