SEC Deregistration

Cookson Group PLC
31 July 2007


31 July 2007

                               Cookson Group plc
                          Permanent SEC Deregistration

Further to its announcement on 10 July 2007, Cookson Group plc announces that it
has today filed a Form 15-F with the US Securities and Exchange Commission to
permanently deregister and terminate its reporting obligations under the US
Securities Exchange Act of 1934, as amended.

Enquiries:

Cookson Group plc                       Tel: [phone]
Richard Malthouse, Group Secretary      www.cooksongroup.co.uk




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