Holding(s) in Company

Sondex PLC
22 February 2007


Sondex plc
22 February 2007

TR-1: notification of major interests in shares

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

SONDEX PLC

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

- An acquisition or disposal of voting rights: u

- 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 obligation:

AVIVA PLC AND ITS SUBSIDIARIES

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

BNY Norwich Union Nominees            495,346*
Chase GA Group Nominees Limited       1,200,073*
Chase Nominees Limited                106,188*
CUIM Nominee Limited                  433,604*
Vidacos Nominees Limited              30,766*

*       Denotes Direct interest

Chase Nominees Limited                2,310
CUIM Nominee Limited                  90,669
Vidacos Nominees Limited              636,245

5. Date of the transaction
(and date on which the threshold is crossed or reached if different):

19 February 2007


6. Date on which issuer notified:

20 FEBRUARY 2007


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

4% to 3% change at Direct Interest Level





8. Notified details:




A: Voting rights attached to shares

Class/type of  Situation previous  Resulting situation after the triggering
shares         to the Triggering   transaction
               transaction
if possible
using the ISIN Number   Number of  Number   Number of voting    % of voting CODE
               of       Voting     of       rights              rights
               Shares   Rights     shares

                                   Direct   Direct   Indirect  Direct Indirect
Ordinary Shares  Direct    Direct      2,265,977 2,265,977  729,224      3.99%    1.28%
GB0033047100     2,270,977 2,270,977

                 Indirect  Indirect
                 729,224   729,224

B: Financial Instruments

Resulting situation after the triggering transaction

Type of    Expiration  Exercise/   Number of voting rights that may   % of
financial   date       Conversion  be acquired if the instrument is   voting
instrument             Period/     exercised/ converted.              rights
                       Date
   N/A        N/A         N/A                 N/A                       N/A

Total (A+B)

Number of voting rights                      % of voting rights

2,995,201                                            5.27%

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

See Section 4

Proxy Voting:

10. Name of the proxy holder: See Section 4

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: Figures are based on a total number of voting rights of 56,774,668

14. Contact name: Neil Whittaker

15. Contact telephone number: [phone]



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