Holding(s) in Company

Clarkson PLC
27 July 2006



CLARKSON PLC

HOLDING IN COMPANY

The Company has been notified that on 24 July 2006 Barclays PLC had a notifiable
interest in Clarkson PLC representing 6.02% of the ordinary issued share capital
of the Company.

The shares are held by five Barclay PLC group companies:

Barclays Life Assurance Co Ltd           102,178
Barclays Global Investors Ltd            746,132
Gerrard Limited                            8,600
Barclays Bank Trust Company Ltd            9,940
Barclays Capital Securities Ltd          204,242

END

Notes to editors

Background to Clarkson PLC

Clarkson PLC (which is listed on the London Stock Exchange) is acknowledged as
the world's leading shipping services group. Through its unrivalled and
extensive global network of offices it is able to give its clients unique access
to a wide range of shipping services. Clarksons covers shipbroking, research,
publications, derivatives and logistics. Clarksons' strategy is to expand and
develop the group around these key activities.

For further information on Clarkson PLC, please visit the company's website at
www.clarksons.com




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