Holding(s) in Company

Sondex PLC
28 June 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 place an X inside the appropriate bracket
/s):



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 obligation:

BlackRock Inc



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

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



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

26th June 2007



6. Date on which issuer notified:

27th June 2007



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

            Gone above 11%



8. Notified details:

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



A: Voting rights attached to shares


Class/type of shares if possible              Situation previous to the Triggering transaction
using the ISIN CODE
                                  Number of shares                   Number of voting Rights

GB0033047100                      5,704,145                          5,704,145


Resulting situation after the triggering transaction


Class/type of shares if      Number of shares         Number of voting rights           % of voting rights
possible using the ISIN CODE
                             Direct                   Direct       Indirect             Direct      Indirect


                             n/a                      n/a          6,484,969            n/a         11.39%



B: Financial Instruments

Resulting situation after the triggering transaction


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





Total (A+B)
Number of voting rights        % of voting rights


6,484,969                      11.39%



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



BlackRock Investment Management (UK) Limited - 6,484,969 (11.39%)



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:



14. Contact name:

BlackRock Inc, 33 King William Street, London, EC4R 9AS



15. Contact telephone number:

020 7743 2098 (Thomas Hone).................


                      This information is provided by RNS
            The company news service from the London Stock Exchange