Holding(s) in Company

PHSC

02/10/2013 16:49

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuer
of existing shares to which voting rights are                                   PHSC Plc
attached:ii

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                                       X

Other (please specify):

3. Full name of person(s) subject to the                                     Downing LLP
notification obligation:iii

4. Full name of shareholder(s)                                  Downing Income VCT 4 plc
 (if different from 3.):iv                                            Downing Income plc

5. Date of the transaction and date on
which the threshold is crossed or                                               01/10/13
reached: v

6. Date on which issuer notified:                                               01/10/13

7. Threshold(s) that is/are crossed or                                          5% to 4%
reached: vi, vii

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type   Situation previous            Resulting situation after the triggering transaction
of           to the triggering
shares       transaction

if possible  Number          Number        Number         Number of voting       % of  voting rights
using        of              of            of shares      rights                 x
the ISIN     Shares          Voting
CODE                         Rights
                                           Direct         Direct xi Indirect xii Direct  Indirect

Ords 10p
GB0033113456 576,509         576,509       576,509                               4.54%

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
financial                    date xvii    Conversion      instrument refers to      rights xix, xx
instrument                                period xviii

                                                                                    Nominal Delta

Total (A+B+C)

Number of voting rights                          Percentage of voting rights

576,509                                          4.54%

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

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:                                            Company Secretary

14. Contact name:                                                       Grant Whitehouse

15. Contact telephone number:                                              0207 416 7780

END