NOTIFICATION OF TRANSACTIONS OF DIRECTORS/PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES AND CONNECTED PERSONS

1. Name of the issuer: Johnson Matthey plc 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 9.8.6R(1) or (iii) a disclosure made in accordance with section 793 of the Companies Act (2006): In accordance with DTR 3.1.2R 3. Name of person discharging managerial responsibilities/director: N A P Carson 4. State whether notification relates to a person connected with a person discharging managerial responsibilities/director named in 3 and identify the connected person: No 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: In respect of holdings of the person named in 3 above 6. Description of shares (including class), debentures or derivatives or financial instruments relating to shares: Ordinary Shares of £1 each 7. Name of registered shareholders(s) and, if more than one, the number of shares held by each of them: Share Nominees Limited 8. State the nature of the transaction: Dividend reinvestment - PEP 9. Number of shares, debentures or financial instruments relating to shares acquired: 4 10. Percentage of issued class acquired (treasury shares of that class should not be taken into account when calculating percentage): Less than 0.1% 11. Number of shares, debentures or financial instruments relating to shares disposed: N/A 12. Percentage of issued class disposed (treasury shares of that class should not be taken into account when calculating percentage): N/A 13. Price per share or value of transaction: £16.7458 14. Date and place of transaction: 6 October 2011, London 15. Total holding following notification and total percentage holding following notification (any treasury shares of that class should not be taken into account when calculating percentage): N A P Carson 188,673 16. Date issuer informed of transaction: 7 October 2011 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 for queries Angela Purtill, Deputy Company Secretary 020 7269 8400

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

Angela Purtill Date of Notification 7 October 2011