IQE plc : Holding(s) in Company

17 November 2017

IQE plc
("IQE" or the "Company")

Holding(s) in Company

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attachedii:			IQE PLC
1b. Please indicate if the issuer is a non-UK issuer  (please mark with an "X" if appropriate)
Non-UK issuer
2. Reason for the notification (please mark the appropriate box or boxes with an "X")
An acquisition or disposal of voting rights						X
An acquisition or disposal of financial instruments
An event changing the breakdown of voting rights
Other (please specify)iii:
3. Details of person subject to the notification obligationiv
Name			T. Rowe Price Associates, Inc.
City and country of registered office (if applicable)			Baltimore, Maryland, USA
4. Full name of shareholder(s) (if different from 3.)v
Name			T. Rowe Price International Ltd
City and country of registered office (if applicable)			London, United Kingdom
5. Date on which the threshold was crossed or reachedvi:			14 November 2017
6. Date on which issuer notified (DD/MM/YYYY):			16 November 2017
7. Total positions of person(s) subject to the notification obligation
	% of voting rights attached to shares (total of 8. A)	% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)		Total of both in % (8.A + 8.B)	Total number of voting rights of issuervii
Resulting situation on the date on which threshold was crossed or reached	11.10%	0.49%		11.60%	686,814,813
Position of previous notification (if applicable)	10.75%	0.49%		11.25%

8. Notified details of the resulting situation on the date on which the threshold was crossed or reachedviii
A: Voting rights attached to shares
Class/type of shares ISIN code (if possible)		Number of voting rightsix					% of voting rights
		Direct (Art 9 of Directive 2004/109/EC) (DTR5.1)		Indirect (Art 10 of Directive 2004/109/EC) (DTR5.2.1)			Direct (Art 9 of Directive 2004/109/EC) (DTR5.1)		Indirect (Art 10 of Directive 2004/109/EC) (DTR5.2.1)
GB0009619924				76,263,954					11.10%
SUBTOTAL 8. A		76,263,954					11.10%
B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1 (a))
Type of financial instrument		Expiration datex	Exercise/ Conversion Periodxi			Number of voting rights that may be acquired if the instrument is exercised/converted.			% of voting rights
Shares on loan		N/A	Right of recall on demand			3,430,679			0.49%
			SUBTOTAL 8. B 1			3,430,679			0.49%
B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b))
Type of financial instrument	Expiration datex		Exercise/ Conversion Period xi		Physical or cash settlementxii			Number of voting rights	% of voting rights
					SUBTOTAL 8.B.2

9. Information in relation to the person subject to the notification obligation (please mark the applicable box with an "X")
Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuerxiii
Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entityxiv (please add additional rows as necessary)				X
Namexv	% of voting rights if it equals or is higher than the notifiable threshold	% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
T. Rowe Price Associates, Inc.
T. Rowe Price International Ltd	8.81%	0.49%	9.31%
10. In case of proxy voting, please identify:
Name of the proxy holder
The number and % of voting rights held
The date until which the voting rights will be held
11. Additional informationxvi

Place of completion	Baltimore, Maryland, USA
Date of completion	16 November 2017

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Source: IQE plc via Globenewswire