Holding(s) in Company

Sondex PLC
05 March 2007


TR-1:               notification of major interests in shares


1. Identity of the issuer or the underlying issuer of existing                  Sondex Plc
shares to which voting rights are attached:
2. Reason for the notification (please tick the appropriate box or boxes): n/a see
additional information
An acquisition or disposal of voting rights                                                  
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):                                                                           X
4. Full name of shareholder(s) (if different from 3.):                        BlackRock Inc
5. Date of the transaction and date on which the threshold is                      N/A
crossed or reached:
6. Date on which issuer notified:                                           27th February 2007
7. Threshold(s) that is/are crossed or reached:                                  Above 5%





8. Notified details:


A: Voting rights attached to shares
Class/type of    Situation previous to Resulting situation after the triggering transaction
shares           the Triggering
                 transaction
 if possible     Number of  Number of  Number of    Number of voting rights   % of voting rights
using the ISIN   Shares     Voting     shares
CODE                        Rights     Direct       Direct       Indirect     Direct       Indirect
GB0033047100     N/A             N/A   N/A          N/A          4,346,049    N/A          7.65%


B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial    Expiration date Exercise/ Conversion      Number of voting rights    % of voting
instrument                           Period/ Date              that may be acquired if    rights
                                                               the instrument is
                                                               exercised/ converted.



Total (A+B)
Number of voting rights                            % of voting rights
      4,346,049                                              7.65%








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 - 4,346,049 (7.65%)


Proxy Voting:
10. Name of the proxy holder:                                                       N/A
11. Number of voting rights proxy holder will cease to hold:                        N/A
12. Date on which proxy holder will cease to hold voting rights:                    N/A


        13. Additional information:                            Full name and Contact address

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


14. Contact name:                                                      Thomas Hone
15. Contact telephone number:                                         020 7743 2098




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