Annual Information Update

Clarkson PLC 15 May 2006 CLARKSON PLC 15 May 2006 Annual Information Update for the 12 month period to 15 May 2006. In accordance with Prospectus Rule 5.2, Clarkson PLC sets out below a summary of the information which has been published or made available to the public during the defined period. The information referred to in this Update was up to date at the time the information was published, but some information may now be out of date. Regulatory announces may be viewed at the Company's website at www.clarksons.co.uk and at the London Stock Exchange's website at www.londonstockexchange.com/en-gb/pricesnews/marketnews/ under code CKN. Copies of the documents filed at Companies House may be obtained from: Companies House Crown Way, Cardiff CF14 3UZ Email: www.direct.companieshouse.gov.uk ANNUAL INFORMATION UPDATE 25.05.05 RNS London Stock Exchange Announcement - AGM www.clarksons.co.uk Trading Update 27.05.05 RNS London Stock Exchange Announcement - www.clarksons.co.uk Directorate Changes - Bob Benton (appointment of new non-executive director) 01.06.05 Electronic filing of resignation of Company Companies House Secretary (Resignation of Mr. R.D. Ward) 01.06.05 Electronic filing of appointment of Company Companies House Secretary (appointment of Mr. S.G. Deasey) 02.06.05 Filing of Form 288a at Companies House Companies House (appointment of Mr. Robert John Benton) 07.06.05 RNS London Stock Exchange Announcement - www.clarksons.co.uk Change of Company Secretary (appointment of new Company Secretary) 17.06.05 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Lloyds TSB Group PLC) 22.06.05 Filing of Annual Return at Companies House Companies House 08.07.05 Filing of Annual Report and Accounts at Companies House Companies House 24.08.05 RNS London Stock Exchange Announcement - www.clarksons.co.uk Notice of Results 25.08.05 RNS London Stock Exchange Announcement - IFRS www.clarksons.co.uk Statement 26.08.05 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Lloyds TSB Group PLC) 31.08.05 RNS London Stock Exchange Announcement - www.clarksons.co.uk Interim results for the six months ended 30 June 2005 12.09.2005 RNS London Stock Exchange Announcement - www.clarksons.co.uk Acquisition of MV Pacific Dhow 23.09.05 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Lloyds TSB Group PLC) 30.09.2005 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Lloyds TSB Group PLC) 01.11.2005 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Barclays PLC) 03.11.2005 RNS London Stock Exchange Announcement - www.clarksons.co.uk Acquisition - Clarksons and Plowright 12.12.2005 RNS London Stock Exchange Announcement - www.clarksons.co.uk Channel Freight Ferries Closes Service 13.12.2005 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Barclays PLC) 14.12.2005 RNS London Stock Exchange Announcement - www.clarksons.co.uk Appointment of Joint Broker 04.01.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Acquisition of Plowright 25.01.2006 Filing of Form 403a - Declaration of Companies House satisfaction in full or in part of mortgage or change 01.02.2006 Regulatory Announcement - Admission of www.clarksons.co.uk Securities 02.02.2006 Filing of Form 88(2) - Return of Allotment of Companies House Shares 16.02.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Barclays PLC) 23.02.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Barclays PLC) 02.03.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Lloyds TSB Group PLC) 29.03.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Preliminary results for the 12 months ended 31 December 2005 31.03.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk C.I.F. Trading Limited Launch 04.04.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Change in Director's Shareholding 06.04.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Holding in Company (notification of shareholding by Lloyds TSB Group PLC) 27.04.2006 RNS London Stock Exchange Announcement - www.clarksons.co.uk Change in Director's Shareholding INFORMATION SENT TO SHAREHOLDERS Information on Clarkson PLC can be found on the website www.clarksons.co.uk the text of which is updated on a regular basis, however it should be noted that some information on the website may be out-of-date at the time of this announcement. 31.08.2005 Interim Report 2005 20.04.2006 Annual Report and Financial Statements 2005 20.04.2006 Notice of AGM and Form of Proxy These reports can be viewed at www.clarksons.co.uk/FinancialReports/ 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 This information is provided by RNS The company news service from the London Stock Exchange

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