Blocklisting Interim Review

SIG PLC
03 August 2006


                         BLOCKLISTING SIX MONTHLY REVIEW


1. NAME OF COMPANY:                     SIG plc


2. NAME OF SCHEME:                      SIG plc - Long Term Incentive Plan


3. PERIOD OF RETURN:             FROM:  04 February 2006     TO:  03 August 2006


4. NUMBER AND CLASS OF SHARE(S)
   (AMOUNT OF STOCK/DEBT SECURITY)
   NOT ISSUED UNDER SCHEME              51,553 Ordinary 10p Shares
   AT END OF THE LAST PERIOD:           200,000 Additional Listing (See Box 7)


5. NUMBER OF SHARES ISSUED/ALLOTTED
   UNDER SCHEME DURING PERIOD:          198,217 Ordinary 10p Shares


6. BALANCE UNDER SCHEME NOT YET 
   ISSUED/ALLOTTED AT END OF PERIOD:    53,336 Ordinary 10p Shares


7. NUMBER AND CLASS OF SHARE(S)         254,082 Ordinary 10p Shares
   (AMOUNT OF STOCK/DEBT SECURITIES)    Admitted 28 March 2002
   ORIGINALLY LISTED AND THE DATE OF    200,000 Ordinary 10p Shares
   ADMISSION:                           Admitted 12 April 2006


PLEASE CONFIRM TOTAL NUMBER OF SHARES 
IN ISSUE AT THE END OF THE PERIOD       Total number of shares in issue at
IN ORDER FOR US TO UPDATE OUR RECORDS.  3 August 2006 was 123,014,387


CONTACT FOR QUERIES                     R C Monro
NAME:                                   Richard Monro
TELEPHONE:                              0114 285 6355



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