Blocklisting Interim Review

Sondex PLC
06 September 2006

                              SCHEDULE 5

                    BLOCKLISTING SIX MONTHLY REVIEW


1. NAME OF COMPANY:

   SONDEX PLC

2. NAME OF SCHEME:

   SONDEX 2003 EMPLOYEE SHARE OPTION SCHEME AND PSP SHARE OPTION SCHEME

3. PERIOD OF RETURN:     FROM: 1 MARCH 2006       TO: 31 AUGUST 2006



4. NUMBER AND CLASS OF SHARE(S)
   (AMOUNT OF STOCK/DEBT SECURITY)
   NOT ISSUED UNDER SCHEME
   AT END OF THE LAST PERIOD:

   5,000,000 ORDINARY SHARES OF 10p EACH

5. NUMBER OF SHARES ISSUED/ALLOTTED
   UNDER SCHEME DURING PERIOD:

   835,487 ORDINARY SHARES OF 10p EACH

6. BALANCE UNDER SCHEME NOT YET ISSUED/ALLOTTED 
   AT END OF PERIOD:

   4,164,513 ORDINARY SHARES OF 10p EACH

7. NUMBER AND CLASS OF SHARE(S) 
   (AMOUNT OF STOCK/DEBT SECURITIES) 
   ORIGINALLY LISTED AND THE DATE OF ADMISSION:

   5,000,000 ORDINARY SHARES OF 10p EACH

   23rd JUNE 2006


PLEASE CONFIRM TOTAL NUMBER OF SHARES IN ISSUE AT THE END OF THE PERIOD
IN ORDER FOR US TO UPDATE OUR RECORDS.

   56,714,197 ORDINARY SHARES OF 10p EACH

CONTACT FOR QUERIES

NAME:       HELEN OSBORN      ADDRESS:  SONDEX, SAXONY WAY, BLACKBUSHE, YATELEY,
TELEPHONE:                              HAMPSHIRE GU46 6AB


END



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