Blocklisting Interim Review

SIG PLC
03 August 2005



                    BLOCKLISTING SIX MONTHLY REVIEW


1. NAME OF COMPANY:               SIG PLC



2. NAME OF SCHEME:                SIG PLC - 1997 SAVINGS-RELATED SHARE
                                  OPTION SCHEME



3. PERIOD OF RETURN:     FROM:    4 FEBRUARY 2005      TO: 3 AUGUST 2005



4. NUMBER AND CLASS OF SHARE(S)
   (AMOUNT OF STOCK/DEBT SECURITY)   736,469 ORDINARY 10P SHARES
   NOT ISSUED UNDER SCHEME
   AT END OF THE LAST PERIOD:



5. NUMBER OF SHARES ISSUED/ALLOTTED    258,604 ORDINARY 10P SHARES
   UNDER SCHEME DURING PERIOD:


                                                 
6. BALANCE UNDER SCHEME NOT YET ISSUED/ALLOTTED   477,865 ORDINARY 10P SHARES
   AT END OF PERIOD:



7. NUMBER AND CLASS OF SHARE(S)                    
   (AMOUNT OF STOCK/DEBT SECURITIES)             2,306,417 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 AUGUST 2005 WAS 121,776,442


CONTACT FOR QUERIES                

NAME:                                  R C MONRO
TELEPHONE:                             0114 285 6355






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