Clarkson Regulatory News (CKN)

Replacement of RNS number 4703O, correcting the date on which the close period begins to 30 June 2010.

30 June 2010

Clarkson PLC

Pre-Close Trading Update

Prior to entering its close period on 30 June 2010, Clarkson PLC the world's leading shipping services group, is today providing the following update on trading.

The steady improvement in our trading environment, reported at the time of our Interim Management Statement on 12 May 2010, has continued. Whilst shipping markets are recovering at differing rates, we have been pleased to see further positive signs across a number of our markets.

These trends, augmented by the movement in the value of Sterling against the US dollar, mean that trading for the six months to 30 June 2010 is ahead of the Board's expectations.

Enquiries:

Clarkson PLC 020 7334 0000

Jeff Woyda, Finance Director

Hudson Sandler 020 7796 4133

Jessica Rouleau/Kate Hough