Holding(s) in Company

SIG PLC
10 August 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) :

9 August 2007

6.   Date on which issuer notified: 10 August 2007

7.   Threshold(s) that is/are crossed or reached : 3% - 4%

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

             5,367,971            5,367,971

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   5,103,709            5,103,709 424,821      3.78% 0.32%

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

5,528,530               4.10%

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: N/A

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

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: Ryan Smith

15. Contact:      0131 549 6275

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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