Blocklisting Interim Review

SIG PLC
06 February 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:   4 AUGUST 2005     TO:  3 FEBRUARY 2006



4. NUMBER AND CLASS OF SHARE(S)
   (AMOUNT OF STOCK/DEBT SECURITY)
   NOT ISSUED UNDER SCHEME                65,879 ORDINARY 10P SHARES
   AT END OF THE LAST PERIOD:



5. NUMBER OF SHARES ISSUED/ALLOTTED
   UNDER SCHEME DURING PERIOD:            14,326 ORDINARY 10P SHARES



6. BALANCE UNDER SCHEME NOT YET ISSUED/ALLOTTED 
   AT END OF PERIOD:                      51,553 ORDINARY 10P SHARES



7. NUMBER AND CLASS OF SHARE(S) 
   (AMOUNT OF STOCK/DEBT SECURITIES)                 254,082 ORDINARY 10P SHARES
   ORIGINALLY LISTED AND THE DATE OF ADMISSION:      ADMITTED 28 MARCH 2002 
                                                          


PLEASE CONFIRM TOTAL NUMBER OF SHARES IN ISSUE AT THE END OF THE PERIOD
IN ORDER FOR US TO UPDATE OUR RECORDS.     TOTAL NUMBER OF SHARES IN ISSUE
                                           AT 3 FEBRUARY 2006 WAS 121,897,147

CONTACT FOR QUERIES              R C MONRO          
NAME:                            RICHARD MONRO 
TELEPHONE:                       0114 285 6355







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