Holding(s) in Company

SIG PLC
18 March 2005

                                SCHEDULE 10
               
                  NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     SIG plc

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     FMR CORP. AND ITS DIRECT AND INDIRECT SUBSIDIARIES AND FIDELITY 
     INTERNATIONAL LIMITED AND ITS DIRECT AND INDIRECT SUBSIDIARIES -
     BOTH BEING NON-BENEFICIAL HOLDERS

3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

     AS IN 2 ABOVE

4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

     BANK OF NEW YORK, EUROPE LDN FIL                   230,000
     BANK OF NEW YORK, BRUSSELS FIL                      59,600
     BROWN BROS HARRIMAN LTD, LUX FIL                 8,577,464
     JP MORGAN, BOURNEMOUTH FIL                          53,600
     JP MORGAN, BOURNEMOUTH FISL                        518,488
     BROWN BROS HARRIMAN & CO, FMRCO                  1,350,000
     JP MORGAN CHASE BANK FMRCO                          74,800
     STATE STREET BANK & TRUST LDN- FIL                  78,110
     NORTHERN TRUST - LONDON FIL                         41,320
     NORTHERN TRUST LONDON FPM                          607,020
     BANK OF NEW YORK, BRUSSELS FPM                     391,600
     CLYDESDALE BANK PLC FPM                             26,900
     JP MORGAN BOURNEMOUTH FPM                        1,252,600
     MELLON BANK FPM                                    104,000
     STATE STREET BANK & TRUST LDN- FPM                  31,200

                                     TOTAL           13,396,702

5)   Number of shares/amount of stock acquired.

     NOT DISCLOSED

6)   Percentage of issued Class

     NOT DISCLOSED

7)   Number of shares/amount of stock disposed

     NOT DISCLOSED

8)   Percentage of issued Class

     NOT DISCLOSED

9)   Class of security

     ORDINARY SHARES OF 10p EACH

10)  Date of transaction

     NOT DISCLOSED

11)  Date company informed

     18 MARCH 2005

12)  Total holding following this notification

     13,396,702
               
13)  Total percentage holding of issued class following this notification

     11.0347%

14)  Any additional information

     TOTAL ISSUED ORDINARY SHARES OF 10p EACH OF SIG plc IS:
     121,405,561

15)  Name of contact and telephone number for queries

     MR R. C. MONRO
     COMPANY SECRETARY
     TEL: [phone]

16)  Name and signature of authorised company official responsible for 
     making this notification

     MR R. C. MONRO

     Date of Notification      18 MARCH 2005


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