IQE plc : Holding(s) in Company

1 November 2011

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





+----------------------------------------------------------+
| TR-1:         Notifications of Major Interests in Shares |
+----------------------------------------------------------+

+----------------------------------------------------------------------+-------+
|1:     Identity of the issuer or the underlying issuer of existing    |IQE PLC|
|shares to which voting rights are attached:                           |       |
+----------------------------------------------------------------------+-------+

+------------------------------------------------------------------------------+
|2:    Reason for notification (yes/no)                                        |
+--------------------------------------------------------------------------+---+
|An acquisition or disposal of voting rights                               |yes|
+--------------------------------------------------------------------------+---+
|An acquisition or disposal of qualifying financial instruments which may  |   |
|result in the acquisition of shares already issued to which voting rights |no |
|are attached                                                              |   |
+--------------------------------------------------------------------------+---+
|An acquisition or disposal of instruments with similar economic effect to |no |
|qualifying financial instruments                                          |   |
+--------------------------------------------------------------------------+---+
|An event changing the breakdown of voting rights                          |yes|
+--------------------------------------------------------------------------+---+
|Other (please specify):                                                   |no |
+--------------------------------------------------------------------------+---+

+-----------------------------------------------+------------------------------+
|3. Full name of person(s) subject to the       |                              |
|notification                                   | Standard Life Investments Ltd|
|    obligation:                                |                              |
+-----------------------------------------------+------------------------------+
|4. Full name of shareholder(s) (if different   | Vidacos Nominees             |
|from 3.):                                      |                              |
+-----------------------------------------------+------------------------------+
|5. Date of the transaction (and date on which  |                              |
|the threshold                                  |31 October 2011               |
|      is crossed or reached):                  |                              |
+-----------------------------------------------+------------------------------+
|6. Date on which issuer notified:              |1 November 2011               |
+-----------------------------------------------+------------------------------+
|7. Threshold(s) that is/are crossed or reached:|5%                            |
+-----------------------------------------------+------------------------------+












+------------------------------------------------------------------------+
|8:    Notified Details                                                  |
+------------------------------------------------------------------------+
|A:    Voting rights attached to shares                                  |
+---------------------------------------------+--------------------------+
|Class/type of share   If possible use ISIN   |GB0009619924              |
|code                                         |                          |
+---------------------------------------------+--------------------------+
|                                                                        |
+------------------------------------------------------------------------+
|Situation previous to the triggering transaction                        |
+---------------------------------------------+--------------------------+
|Number of shares                             |Number of voting rights   |
+---------------------------------------------+--------------------------+
|26,454,247                                   |26,454,247                |
+---------------------------------------------+--------------------------+
|                                                                        |
+------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                    |
+----------------+---------------------------------------+---------------+
|Number of shares|Number of voting rights                |Percentage of  |
|                |                                       |voting rights  |
|                +----------------------------+----------+------+--------+
|                |Direct                      |Indirect  |Direct|Indirect|
+----------------+----------------------------+----------+------+--------+
|26,025,907      |6,207,872                   |19,818,035|1.182%|3.774%  |
+----------------+----------------------------+----------+------+--------+

+------------------------------------------------------------------------------+
|B:    Qualifying Financial Instruments                                        |
+------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                          |
+-------------+-------------+--------------+----------------------+------------+
|Type of      |Expiration   |Exercise/     |No. of voting rights  |Percentage  |
|financial    |date         |conversion    |that may be acquired  |of voting   |
|instrument   |             |period/date   |(if the instrument    |rights      |
|             |             |              |exercised/converted)  |            |
+-------------+-------------+--------------+----------------------+------------+
|             |             |              |                      |            |
+-------------+-------------+--------------+----------------------+------------+

+------------------------------------------------------------------------------+
|C: Financial Instruments with similar economic effect to Qualifying Financial |
|Instruments                                                                   |
+------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                          |
|                                                                              |
|                                                                              |
+---------------+--------+----------+----------+--------------+----------------+
|Type of        |Exercise|Expiration|Exercise/ |Number of     |% of voting     |
|financial      |price   |date      |Conversion|voting        |rights          |
|instrument     |        |          |period    |rights        |                |
|               |        |          |          |instrument    |                |
|               |        |          |          |refers to     |                |
+---------------+--------+----------+----------+--------------+-------+--------+
|               |        |          |          |              |Nominal| Delta  |
|               |        |          |          |              +-------+--------+
|               |        |          |          |              |       |        |
+---------------+--------+----------+----------+--------------+-------+--------+

+-------------------------------------------------------+
| Total (A+B+C)                                         |
+-------------------------+-----------------------------+
| Number of voting rights | Percentage of voting rights |
+-------------------------+-----------------------------+
|  26,025,907             | 4.956%                      |
+-------------------------+-----------------------------+




+------------------------------------------------------------------------------+
|9. Chain of controlled undertakings through which the voting rights and/or the|
|financial instruments are effectively held, if applicable:                    |
+------------------------------------------------------------------------------+
|                                                                              |


+----------------------------------------------------------------------+
| Proxy Voting:                                                        |
|                                                                      |
+------------------------------------------------------------------+---+
| 10. Name of the proxy holder:                                    |   |
|                                                                  |   |
+------------------------------------------------------------------+---+
| 11. Number of voting rights proxy holder will cease to hold:     |   |
|                                                                  |   |
+------------------------------------------------------------------+---+
| 12. Date on which proxy holder will cease to hold voting rights: |   |
|                                                                  |   |
+------------------------------------------------------------------+---+

+-------------------------------+---------------------------------+
| 13. Additional information:   |                                 |
|                               |                                 |
+-------------------------------+---------------------------------+
| 14. Contact name:             | [e-mail] |
|                               | Standard Life Investments Ltd   |
+-------------------------------+---------------------------------+
| 15. Contact telephone number: | [phone]                 |
|                               |                                 |
+-------------------------------+---------------------------------+













This announcement is distributed by Thomson Reuters on behalf of 
Thomson Reuters clients. The owner of this announcement warrants that: 
(i) the releases contained herein are protected by copyright and 
    other applicable laws; and 
(ii) they are solely responsible for the content, accuracy and 
     originality of the information contained therein. 
    
Source: IQE plc via Thomson Reuters ONE

[HUG#1559895]