Holding(s) in Company

SIG PLC
27 September 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 :

AEGON UK Group of Companies

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) :

26 September 2007

6.  Date on which issuer notified: 27 September 2007

7.  Threshold(s) that is/are crossed or reached : 3% - 2%

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
        
                    4,333,580            4,333,580

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 3,947,672            3,643,393  304,279         2.69%  0.23%

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

3,947,672                    2.92%

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

AEGON UK Group of Companies - parent undertaking of:

AEGON Asset Management UK plc
AEGON Investment Management UK Ltd
AEGON ICVC

Proxy Voting:

10. Name of the proxy holder: AEGON UK Group of Companies

11. Number of voting rights proxy holder will cease/acquire to hold: 385,908

12. Date on which proxy holder will cease/acquire to hold voting rights: 29
September 2007

13. Additional information:

AEGON UK Group of Companies consists of:

AEGON Asset Management UK plc
AEGON Investment Management UK Ltd
AEGON ICVC

14. Contact Name: Miranda Beacham

15. Contact: 0131 549 3460

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) AEGON Asset Management UK
plc

Contact Address: AEGON House

3 Lochside Avenue
Edinburgh Park
Edinburgh EH12 9SA

Phone Number: 0870 60 90 101

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

Ian G Young, Company Secretary

Tel: [phone]



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