RNS Number:3833P
M&G Investment Management Ltd
04 September 2003



                                                                      FORM SAR 5

Lodge with a RIS or Newstrack if appropriate and the Takeover Panel.

A copy must also be sent to the company the shares of which are being sold.

Date of disclosure

04-SEPTEMBER-2003

DISCLOSURE UNDER NOTE 3 OF RULE 5 OF THE RULES GOVERNING SUBSTANTIAL
ACQUISITIONS OF SHARES ("SARs")

Date of sale

03-SEPTEMBER-2003

Sale of (name of company)

600 Group plc

1. Class of voting shares (eg ordinary shares)

Ordinary

Number of shares/rights over shares sold

               147,300    Shares                     Rights

If rights over shares sold, as opposed to the shares themselves, specify nature
of rights


2. Resultant total holding of voting shares (and % of total voting shares in
issue)

             9,521,883                        16.98%

Resultant total holding of rights over shares (and % of total voting shares in
issue)

%

Total percentage

16.98%

3. Party making disclosure

M&G Investment Management Ltd

4. (a) Name of person selling shares or rights over shares

Prudential plc

and, if different, beneficial owner


(b) Names of any other persons acting by agreement or understanding


Signed, for and on behalf of the party named in (3) above

Richard Harding

(Also print name of signatory)

Richard Harding

Telephone and extension number

020 7548 3183

For full details of the SARs disclosure requirements, see Rules 3 and 5 of the
SARs. If in doubt, contact the Panel on Takeovers and Mergers, Monitoring
Section, Tel. No: 020 7638 0129. E-mail: monitoring@disclosure.org.uk



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