Notification of Interest

Synchronica PLC
21 August 2007


Synchronica plc

21 August 2007

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1. Name of company

Synchronica plc

2. Name of shareholder having a major interest

Credit Agricole Cheuvreux International Ltd

3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18

Above

4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them

Credit Agricole Cheuvreux International Ltd

5. Number of shares / amount of stock acquired

Nil

6. Percentage of issued class

N/A

7. Number of shares / amount of stock disposed

500,000

8. Percentage of issued class

Not disclosed

9. Class of security

Ordinary shares of 1 pence each

10. Date of transaction

20th August 2007

11. Date company informed

21st August 2007

12. Total holding following this notification

3,695,000

13. Total percentage holding of issued class following this notification

4.61 per cent

14. Any additional information

...............................................................

15. Name of contact and telephone number for queries

Michael Woolley...07799 113224

16. Name and signature of authorised company official responsible for making
this notification

Michael Woolley, Company Secretary

Date of notification

21.08.2007

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