Blocklisting Interim Review

SIG PLC 06 February 2006 BLOCKLISTING SIX MONTHLY REVIEW 1. NAME OF COMPANY: SIG PLC 2. NAME OF SCHEME: SIG PLC - 1997 EXECUTIVE SHARE OPTION SCHEME 3. PERIOD OF RETURN: FROM: 4 AUGUST 2005 TO: 3 FEBRUARY 2006 4. NUMBER AND CLASS OF SHARE(S) 398,848 ORDINARY 10P SHARES (AMOUNT OF STOCK/DEBT SECURITY) NOT ISSUED UNDER SCHEME AT END OF THE LAST PERIOD: 5. NUMBER OF SHARES ISSUED/ALLOTTED 65,800 ORDINARY 10P SHARES UNDER SCHEME DURING PERIOD: 6. BALANCE UNDER SCHEME NOT YET ISSUED/ 330,048 ORDINARY 10P SHARES ALLOTTED AT END OF PERIOD: 7. NUMBER AND CLASS OF SHARE(S) 564,500 ORDINARY 10P SHARES (AMOUNT OF STOCK/DEBT SECURITIES) ADMITTED 28 MARCH 2002 ORIGINALLY LISTED AND THE DATE OF ADMISSION: PLEASE CONFIRM TOTAL NUMBER OF SHARES TOTAL NUMBER OF SHARES IN ISSUE IN ISSUE AT THE END OF THE PERIOD AT 3 FEBRUARY 2006 WAS 121,897,147 IN ORDER FOR US TO UPDATE OUR RECORDS. CONTACT FOR QUERIES R C MONRO NAME: RICHARD MONRO TELEPHONE: 0114 285 6355 DATE 6 FEBRUARY 2006 This information is provided by RNS The company news service from the London Stock Exchange

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