Vesuvius Regulatory News (VSVS)

28 Jun 2011 14:19

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 3.3

(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 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 should in block capital letters.

1. Name of the issuer 2. State whether the notification relates to (i) a transaction notified in accordance with DTR 3.1.2 R; (ii) a disclosure made in accordance with LR 9.8.6 R(1), or; (iii) a disclosure made in accordance with section 793 of the Companies act (2006) Cookson Group plc (i) and (ii)

3. Name of person discharging 4. State whether notification relates

managerial responsibilities/ to a person connected with a director person discharging managerial responsibilities/director named in 3 and identify the connected person Jeffery Francis Harris In respect of Director named in 3, Jeffery Francis Harris 5. Indicate whether the 6. Description of shares (including

notification is in respect of a class), debentures or derivatives holding of the person referred or financial instruments relating to in 3 or 4 above or in respect to shares of a non-beneficial interest In respect of Director named in Ordinary £1 Shares 3, Jeffery Francis Harris 7. Name of registered shareholders 8 State the nature of the (s) and, if more than one, the transaction number of shares held by each of them Jeffery Francis Harris Purchase of Shares

9. Number of shares, debentures or 10. Percentage of issued class

financial instruments relating acquired (treasury shares of that to shares acquired class should not be taken into account when calculating percentage) 10,000 Ordinary £1 Shares Less than 0.004%

11. Number of shares, debentures or 12. Percentage of issued class

financial instruments relating disposed (treasury shares of that to shares disposed class should not be taken into account when calculating percentage) N/A N/A

13. Price per share or value of 14. Date and place of transaction

transaction 616.2358p 28 June 2011, London 15. Total holding following 16. Date issuer informed of notification and total transaction percentage holding following notification (any treasury shares should not be taken into account when calculating percentage) 30,000 Ordinary £1 Shares, 0.01% 28 June 2011

If a person discharging managerial responsibilities has been granted options by the issuer complete the following boxes

17 Date of grant 18. Period during which or date on which it can be exercised

19. Total amount paid (if any) for 20. Description of shares or

grant of the option debentures involved (class and number)

21. Exercise price (if fixed at time 22. Total number of shares or

of grant) or indication that debentures over which options price is to be fixed at the time held following notification of exercise

23. Any additional information 24. Name of contact and telephone

number for queries Silvana Glibota-Vigo, Company Secretarial Assistant, Cookson Group plc, 020 7822 0000

Name and signature of duly authorised officer of issuer responsible for making notification

Silvana Glibota-Vigo, Company Secretarial Assistant, Cookson Group plc

__________________________________________________________

Date of notification 28 June 2011