Holding(s) in Company

Zytronic PLC
14 February 2007


TR-1:               NOTIFICATION OF MAJOR INTERESTS IN SHARES



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

2. Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights                                             X

An acquisition or disposal of financial instruments which may result in the acquisition of
shares already issued to which voting rights are attached

An event changing the breakdown of voting rights
Other (please specify):

3. Full name of person(s) subject to the notification                           Schroders Plc
obligation:

4. Full name of shareholder(s) (if different from 3.):

5. Date of the transaction and date on which the threshold is                  12/02/2007
crossed or reached:

6. Date on which issuer notified:                                              13/02/2007

7. Threshold(s) that is/are crossed or reached:                                 Above 5%

8. Notified details:



A: Voting rights attached to shares
Class/type of      Situation previous to Resulting situation after the triggering transaction(i)
shares             the Triggering
                   transaction
 if possible using Number of  Number of  Number of   Number of voting rights   % of voting rights
the ISIN CODE      Shares     Voting     shares
                              Rights     Direct      Direct       Indirect     Direct       Indirect
Ordinary           N/A        N/A        N/A         N/A          910,000      N/A          910,000

GB0006971013


B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial    Expiration date Exercise/ Conversion      Number of voting rights    % of voting
instrument                           Period/ Date              that may be acquired if    rights
                                                               the instrument is
                                                               exercised/ converted.



Total (A+B)
Number of voting rights                            % of voting rights
910,000                                            6.216%



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

Schroder Investment Management Limited    910,000    6.22%


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:                  The shares referred to in Section 9 are held in portfolios
                                             managed by those firms on a discretionary basis for clients
                                             under investment management agreements.

14. Contact name:                            John Kennair

15. Contact telephone number:                0191 414 5511



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