Holding(s) in Company

SIG PLC
09 November 2007


TR-1 Notification of Major Interests in Shares

1.  Identity of the issuer or the underlying issuer of existing shares to which 
voting rights are attached:

SIG plc

2.  Reason for the notification (please state Yes/No): ( )

An acquisition or disposal of voting rights (x)
An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached ( )
An event changing the breakdown of voting rights ( )
Other (please specify):

3.  Full name of person(s) subject to the notification obligation :

BlackRock Inc

4.  Full name of shareholder(s) (if different from 3.):

5.  Date of transaction (and date on which the threshold is crossed or reached 
if different) :

7 November 2007

6.  Date on which issuer notified: 8 November 2007

7.  Threshold(s) that is/are crossed or reached : Gone above 5%

8.  Notified Details :

A: Voting rights attached to shares

Class/type of shares         Situation previous to the triggering
If possible using the        transaction
ISIN CODE 

GB0008025412     Number of Shares     Number of Voting Rights

                    N/A                     N/A

Voting rights attached to shares

Class/type of shares         Resulting situation after the triggering
If possible using the        transaction
ISIN CODE 

            Number of Shares     Number of Voting Rights     % of voting rights

            Direct               Direct     Indirect          Direct   Indirect

GB0008025412 N/A                 N/A        7,030,334         N/A       5.20%

B: Financial Instruments

Resulting situation after the triggering action

Type of Financial  Expiration     Exercise/     Number of voting     % of voting 
Instrument         date           Conversion    rights that may be   rights
                                  Period/Date   acquired if the
                                                Instrument is
                                                Exercised/converted

Total (A + B)

Number of voting rights     % of voting rights

7,030,334                   5.20%

9.  Chain of controlled undertakings through which the voting rights and/or the 
financial instruments are effectively held, if applicable :

BlackRock Investment Management (UK) Limited - 7,030,334 (5.20%)

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease/acquire to hold:

12. Date on which proxy holder will cease/acquire to hold voting rights:

13. Additional information:

14. Contact Name: Thomas Hone

15. Contact: 020 7743 2098

ANNEX Notification of Major Interests In Shares

A.  Identity of the person or legal entity subject to the notification obligation

Full Name (including legal form for legal entities) BlackRock Inc

Contact Address: 33 King William Street

London EC4R 9AS

Phone Number: 020 7743 2098

Other useful information (at least legal representative for legal persons):






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