Holding(s) in Company

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| For filings with the FSA include the     |                        |
| annex                                    |                        |
|------------------------------------------+------------------------|
| For filings with issuer exclude the      |                        |
| annex                                    |                        |
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|                                                                   |
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| TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi                   |
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|                                                   |               |
|---------------------------------------------------+---------------|
| 1. Identity of the issuer or the underlying       |               |
| issuer                                            |        Vp plc |
| of existing shares to which voting rights are     |               |
| attached: ii                                      |               |
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| 2 Reason for the notification (please tick the appropriate box or |
| boxes):                                                           |
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| 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 are         |        |
| attached                                                 |        |
|----------------------------------------------------------+--------|
| An acquisition or disposal of instruments with similar   |        |
| economic effect to qualifying financial instruments      |        |
|----------------------------------------------------------+--------|
| An event changing the breakdown of voting rights         |        |
|----------------------------------------------------------+--------|
| Other (please          |                                 |        |
| specify):              |                                 |        |
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| 3. Full name of person(s)       |                                 |
| subject to the                  |               Vp Employee Trust |
| notification obligation: iii    |                                 |
|---------------------------------+---------------------------------|
| 4. Full name of shareholder(s)  |     Vibroplant Trustees Limited |
|  (if different from 3.):iv      |                                 |
|---------------------------------+---------------------------------|
| 5. Date of the transaction and  |                                 |
| date on                         |                                 |
| which the threshold is crossed  |               17 September 2009 |
| or                              |                                 |
| reached: v                      |                                 |
|---------------------------------+---------------------------------|
| 6. Date on which issuer         |               17 September 2009 |
| notified:                       |                                 |
|---------------------------------+---------------------------------|
| 7. Threshold(s) that is/are     |                                 |
| crossed or                      |                              7% |
| reached: vi, vii                |                                 |
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+--------------------------------------------------------------------------------------------------+
|8. Notified details:                                                                              |
|--------------------------------------------------------------------------------------------------|
|A: Voting rights attached to shares viii, ix                                                      |
|--------------------------------------------------------------------------------------------------|
|Class/type of|Situation previous            |Resulting situation after the triggering transaction |
|shares       |to the triggering             |                                                     |
|if possible  |transaction                   |                                                     |
|using        |------------------------------+-----------------------------------------------------|
|the ISIN CODE|Number           |Number      |Number    |Number of voting   |% of  voting rights x |
|             |of               |of          |of shares |rights             |                      |
|             |Shares           |Voting      |----------+-------------------+----------------------|
|             |                 |Rights      |Direct    |Direct  |Indirect  |Direct     |Indirect  |
|             |                 |            |          |xi      |xii       |           |          |
|-------------+-----------------+------------+----------+--------+----------+-----------+----------|
|Ordinary     |                 |            |          |        |          |           |          |
|Shares       |    3,158,908    | 3,158,908  |3,063,958 |   0    |3,063,958 |     0     | 6.8133%  |
|-------------|                 |            |          |        |          |           |          |
|             |                 |            |          |        |          |           |          |
|--------------------------------------------------------------------------------------------------|
|                                                                                                  |
|--------------------------------------------------------------------------------------------------|
|B: Qualifying Financial Instruments                                                               |
|--------------------------------------------------------------------------------------------------|
|Resulting situation after the triggering transaction                                              |
|--------------------------------------------------------------------------------------------------|
|Type of financial     |Expiration    |Exercise/             |Number of voting      |% of voting   |
|instrument            |date xiii     |Conversion Period xiv |rights that may be    |rights        |
|                      |              |                      |acquired if the       |              |
|                      |              |                      |instrument is         |              |
|                      |              |                      |exercised/ converted. |              |
|----------------------+--------------+----------------------+----------------------+--------------|
|                      |              |                      |                      |              |
|--------------------------------------------------------------------------------------------------|
|                                                                                                  |
|--------------------------------------------------------------------------------------------------|
|C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi |
|--------------------------------------------------------------------------------------------------|
|Resulting situation after the triggering transaction                                              |
|--------------------------------------------------------------------------------------------------|
|Type of       |Exercise price  |Expiration|Exercise/   |Number of voting rights|% of voting rights|
|financial     |                |date xvii |Conversion  |instrument refers to   |xix, xx           |
|instrument    |                |          |period xviii|                       |                  |
|--------------+----------------+----------+------------+-----------------------+------------------|
|              |                |          |            |                       |Nominal   |Delta  |
|              |                |          |            |                       |----------+-------|
|              |                |          |            |                       |          |       |
|--------------------------------------------------------------------------------------------------|
|                                                                                                  |
|--------------------------------------------------------------------------------------------------|
|Total (A+B+C)                                                                                     |
|--------------------------------------------------------------------------------------------------|
|Number of voting rights                           |Percentage of voting rights                    |
|--------------------------------------------------+-----------------------------------------------|
|3,063,958                                         |6.8133%                                        |
+--------------------------------------------------------------------------------------------------+



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| 9. Chain of controlled undertakings through which the voting      |
| rights and/or the                                                 |
| financial instruments are effectively held, if applicable: xxi    |
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|                                                                   |
| The shares are registered in the name of the Vibroplant Trustees  |
| Ltd on behalf of the Vp Employee Trust.                           |
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|                                                                   |
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| Proxy Voting:                                                     |
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| 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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|                                                                   |
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| 13. Additional information:                  |                    |
|----------------------------------------------+--------------------|
| 14. Contact name:                            |          Mike Holt |
|----------------------------------------------+--------------------|
| 15. Contact telephone number:                |       01423 533400 |
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