Director/PDMR Shareholding

Clarkson PLC 07 April 2008 NOTIFICATION OF TRANSACTIONS OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL RESPONSIBILITY OR CONNECTED PERSONS This form is intended for use by an issuer to make a RIS notification required by DR 3.1.4R(1). (1) An issuer making a notification in respect of a transaction relating to the shares or debentures of the issuer should complete boxes 1 to 16, 23 and 24. (2) An issuer making a notification in respect of a derivative relating to the shares of the issuer should complete boxes 1 to 4, 6, 8, 13, 14, 16, 23 and 24. (3) An issuer making a notification in respect of options granted to a director/person discharging managerial responsibilities should complete boxes 1 to 3 and 17 to 24. (4) An issuer making a notification in respect of a financial instrument relating to the shares of the issuer (other than a debenture) should complete boxes 1 to 4, 6, 8, 9, 11, 13, 14, 16, 23 and 24. Please complete all relevant boxes in block capital letters. 1. Name of the issuer CLARKSON PLC .................................... 2. State whether the notification relates to (i) a transaction notified in accordance with DR 3.1.4R(1)(a); or (ii) DR 3.1.4(R)(1)(b) a disclosure made in accordance with section 324 (as extended by section 328) of the Companies Act 1985; or (iii) both (i) and (ii) NOTIFICATION MADE IN RESPECT OF (iii) .................................... 3. Name of person discharging managerial responsibilities/director TIM HARRIS AND SPOUSE .................................... 4. State whether notification relates to a person connected with a person discharging managerial responsibilities/director named in 3 and identify the connected person AS IN BOX 3 .................................... 5. Indicate whether the notification is in respect of a holding of the person referred to in 3 or 4 above or in respect of a non-beneficial interest AS IN BOX 3 .................................... 6. Description of shares (including class), debentures or derivatives or financial instruments relating to shares ORDINARY SHARES OF 25P EACH .................................... 7. Name of registered shareholders(s) and, if more than one, the number of shares held by each of them AS PER BOX 3 .................................... 8 State the nature of the transaction MARKET SALE AND MARKET PURCHASES .................................... .................................... 9. Number of shares, debentures or financial instruments relating to shares acquired 4TH APRIL 2008 T HARRIS PURCHASED 123 ORDINARY SHARES AT £7.59 SPOUSE PURCHASED 1038 ORDINARY SHARES AT £7.62 TOTAL: 1161 7TH APRIL 2008 T HARRIS PURCHASED 963 ORDINARY SHARES AT £7.40 SPOUSE PURCHASED 876 ORDINARY SHARES AT £7.41 TOTAL: 1839 10. Percentage of issued class acquired (treasury shares of that class should not be taken into account when calculating percentage) 0.016% .................................... 11. Number of shares, debentures or financial instruments relating to shares disposed 3,000 ORDINARY SHARES AT £7.50 EACH SOLD ON 4TH APRIL 2008 .................................... 12. Percentage of issued class disposed (treasury shares of that class should not be taken into account when calculating percentage) 0.016% .................................... 13. Price per share or value of transaction AS PER 9 AND 11 ABOVE .................................... 14. Date and place of transaction AS PER 9 AND 11 ABOVE .................................... 15. Total holding following notification and total percentage holding following notification (any treasury shares should not be taken into account when calculating percentage) 10,778 - 0.057% .................................... 16. Date issuer informed of transaction 7TH APRIL 2008 .................................... If a person discharging managerial responsibilities has been granted options by the issuer complete the following boxes 17 Date of grant N/A .................................... 18. Period during which or date on which it can be exercised N/A .................................... 19. Total amount paid (if any) for grant of the option N/A .................................... 20. Description of shares or debentures involved (class and number) N/A .................................... 21. Exercise price (if fixed at time of grant) or indication that price is to be fixed at the time of exercise N/A .................................... 22. Total number of shares or debentures over which options held following notification N/A .................................... 23. Any additional information N/A .................................... 24. Name of contact and telephone number for queries STEPHEN DEASEY TELEPHONE NO: 0207 334 3171 .................................... Name and signature of duly authorised officer of issuer responsible for making notification STEPHEN DEASEY - COMPANY SECRETARY .................................... Date of notification 7TH APRIL 2008 .................................... END This information is provided by RNS The company news service from the London Stock Exchange RDSUUUWWCUPRGMM

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Clarkson (CKN)
UK 100

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