Rule 8.3 - SONDEX

FORM 8.1

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.1(a) and (b)(i) of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              SONDEX
Class of relevant security    ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)
Date of dealing               04 September 2007

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                             Long                        Short

                       Number       (%)           Number       (%)

(1) Relevant         1,680,831     2.94%            96,339   0.17%
securities
(2) Derivatives        142,404     0.25%           198,855   0.35%
(other than
options)
(3) Options and              0     0.00%                 0   0.00%
agreements to
purchase/sell
Total                1,823,235     3.19%           295,194   0.52%


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number           (%)      Number            (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

(a)  Purchases and sales

Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      5,716                4.5400
Purchase      1,457                4.5400
Purchase      874                  4.5400
Purchase      710                  4.5400
Purchase      1,600                4.5375
Purchase      570                  4.5414
Purchase      461                  4.5425
Purchase      2,786                4.5425
Purchase      2,242                4.5375
Purchase      414                  4.5450
Purchase      1,730                4.5435
Purchase      414                  4.5450
Purchase      1,729                4.5474
Purchase      1,730                4.5435
Sale          300                  4.5350
Sale          1,233                4.5525
Sale          4,058                4.5400
Sale          100                  4.5350
Sale          1,000                4.5375
Sale          1,000                4.5400
Sale          1,000                4.5350
Sale          3,315                4.5500
Sale          781                  4.5375
Sale          1,730                4.5435
Sale          414                  4.5450
Sale          3,000                4.5400

(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name,      (Note 6)      (Note 7)              Unit (GBP)
e.g. CFD
CFD        Short         1600                  4.5375
CFD        Short         570                   4.5413
CFD        Short         461                   4.5424
CFD        Short         1730                  4.5435
CFD        Short         414                   4.545
CFD        Short         1729                  4.5473
CFD        Long          570                   4.54
CFD        Long          1730                  4.5436

(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying


Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)




(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)





4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.




Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         05 September 2007
Contact name                               BARCLAYS COMPLIANCE
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.1 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk