Holding(s) in Company

SIG PLC
30 May 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 ( )

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

       F&C Asset Management Plc

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

       See box 9 below

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

       24 May 2007

6.     Date on which issuer notified: 29 May 2007

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

8.     Notified Details :

A: Voting rights attached to shares

Class/type of shares Situation previous to the triggering

If possible using the ISIN CODE transaction

GB0008025412 Number of Shares Number of Voting Rights

             5,687,098        5,687,098

Voting rights attached to shares

Class/type of shares Resulting situation after the triggering

If possible using the ISIN CODE transaction

Number of Shares Number of Voting Rights % of voting rights

            Direct     Direct Indirect     Direct Indirect

GB0008025412 9,187,098 -       9,187,098     -     7.46

B: Financial Instruments

Resulting situation after the triggering action

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



Total (A + B)

Number of voting rights     % of voting rights

9,187,098                   7.46

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

No client holding above 3%

Proxy Voting:

10. Name of the proxy holder: F&C Asset Management Plc

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

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

13. Additional information:

14. Contact Name: Peter Fraser

15. Contact: 0131 718 1051



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