Holding(s) in Company

+------------------------------------------------+
| TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES |
+------------------------------------------------+
 
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| 1. Identity of the issuer or the          | Quadnetics Group plc  |
| underlying issuer of existing shares to   |                       |
| which voting rights are attached:         |                       |
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| 2 Reason for the notification (please tick the appropriate box or |
| boxes):                                                           |
|-------------------------------------------------------------------|
|                                                            |      |
| An acquisition or disposal of voting rights                |      |
|------------------------------------------------------------+------|
|                                                            |      |
| An acquisition or disposal of qualifying financial         |      |
| instruments which may result in the acquisition of shares  |      |
| already issued to which voting rights are attached         |      |
|------------------------------------------------------------+------|
|                                                            |      |
| An acquisition or disposal of instruments with similar     |      |
| economic effect to qualifying financial instruments        |      |
|------------------------------------------------------------+------|
|                                                            |      |
| An event changing the breakdown of voting rights           |  YES |
|------------------------------------------------------------+------|
|                                         |                  |      |
| Other (please specify):                 |                  |      |
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| 3. Full name of person(s) subject to the          | Schroders plc |
| notification obligation:                          |               |
|                                                   |               |
|---------------------------------------------------+---------------|
| 4. Full name of shareholder(s) (if different from |               |
| 3.):                                              |               |
|                                                   |               |
|---------------------------------------------------+---------------|
| 5. Date of the transaction and date on which the  | 03.08.09      |
| threshold is crossed or reached:                  |               |
|                                                   |               |
|---------------------------------------------------+---------------|
| 6. Date on which issuer notified:                 | 04.08.09      |
|                                                   |               |
|---------------------------------------------------+---------------|
| 7. Threshold(s) that is/are crossed or reached:   | Below 5%      |
|                                                   |               |
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+--------------------------------------------------------------------------------------+
|8. Notified details:                                                                  |
|--------------------------------------------------------------------------------------|
|A: Voting rights attached to shares                                                   |
|                                                                                      |
|--------------------------------------------------------------------------------------|
|Class/type of  |Situation previous  |Resulting situation after the triggering         |
|shares         |to the triggering   |transaction                                      |
|if possible    |transaction         |                                                 |
|using          |--------------------+-------------------------------------------------|
|the ISIN CODE  |Number    |Number   |Number   |Number of voting   |% of  voting rights|
|               |of        |of       |of shares|rights             |                   |
|               |Shares    |Voting   |---------+-------------------+-------------------|
|               |          |Rights   |Direct   |Direct  |Indirect  |Direct  |Indirect  |
|---------------+----------+---------+---------+--------+----------+--------+----------|
| Ordinary      |          |         |         |        |          |        |          |
|---------------| 850,000  |850,000  |850,000  |N/A     | 850,000  |N/A     |4.89%     |
| GB0007156838  |          |         |         |        |          |        |          |
+--------------------------------------------------------------------------------------+
 
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| B: Qualifying Financial Instruments                               |
|-------------------------------------------------------------------|
| Resulting situation after the triggering transaction              |
|                                                                   |
|-------------------------------------------------------------------|
| Type of    | Expiration | Exercise/  | Number of voting  | % of   |
| financial  | date       | Conversion | rights that may   | voting |
| instrument |            | Period     | be                | rights |
|            |            |            | acquired if the   |        |
|            |            |            | instrument is     |        |
|            |            |            | exercised/        |        |
|            |            |            | converted.        |        |
|            |            |            |                   |        |
|------------+------------+------------+-------------------+--------|
|            |            |            |                   |        |
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+--------------------------------------------------------------------------------+
|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 |
|-------------------------+-----------------------------|
|  850,000                | 4.89%                       |
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| 9. Chain of controlled undertakings through which the voting      |
| rights and/or the                                                 |
| financial instruments are effectively held, if applicable:        |
|-------------------------------------------------------------------|
| Schroder Investment Management Limited     850,000     4.89%      |
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| 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:                                                       |   |
|                                                               |   |
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| 13. Additional        | The shares referred to in section 9 are   |
| information:          | held in portfolios managed by those firms |
|                       | on a discretionary basis for clients      |
|                       | under investment management agreements    |
|-----------------------+-------------------------------------------|
| 14. Contact name:     | Taryn O'Donoghue                          |
|                       |                                           |
|-----------------------+-------------------------------------------|
| 15. Contact telephone | 020 7658 6000                             |
| number:               |                                           |
|                       |                                           |
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This announcement was originally distributed by Hugin. The issuer is 
solely responsible for the content of this announcement.