Holding(s) in Company

Zytronic PLC
17 March 2006

17 March 2006



                                  Zytronic plc

                               Holding in Company



Zytronic plc ('the Company') announces that it received notification today from
Singer & Friedlander Ltd that Singer & Friedlander Investment Management Limited
has a revised notifiable interest in 858,209 Ordinary Shares in the Company
representing 5.969% of the issued ordinary share capital.


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