Holding(s) in Company

Clarkson PLC
02 March 2006



CLARKSON PLC

HOLDING IN COMPANY

The Company has been notified that on 23 February 2005 Barclays PLC had a
notifiable interest in Clarkson PLC representing 5.03% of the ordinary issued
share capital of the Company.

The shares are held by five Barclay PLC group companies:

Barclays Life Assurance Co Ltd      82,221
Barclays Global Investors Ltd      596,615
Gerrard Limited                      8,600
Barclays Bank Trust Company Ltd     14,117
Barclays Capital Securities Ltd    160,761

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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