Holding(s) in Company

Sondex PLC
23 March 2006



                   NOTIFICATION OF MAJOR INTERESTS IN SHARES



1. Name of company



Sondex plc



2. Name of shareholder having a major interest



Aviva plc and its subsidiaries



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



As in 2 above



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



Morley Fund Management Limited:

BNY Norwich Union Nominees Limited      820,660*
Chase GA Group Nominees Limited       2,603,009*
Chase Nominees Limited                  151,524*
CUIM Nominee Limited                    806,016*


* denotes beneficial interest



5. Number of shares/amount of stock acquired



N/A



6. Percentage of issued class



N/A



7. Number of shares/amount of stock disposed



90,000



8. Percentage of issued class



0.16%



9. Class of security



ORDINARY GBP 0.10 SHARES



10. Date of transaction



20 March 2006



11. Date company informed



21 March 2006



12. Total holding following this    notification



4,381,209*



*beneficial interest only



13. Total percentage holding of issued class following this notification



7.84%



14. Any additional information



Figures are based on shares in issue of 55,851,989



15. Name of contact and telephone number for queries



Christopher Wilks 0118 932 6755



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



Christopher Wilks Finance Director





Date of notification   23 March 2006






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