Director/PDMR Shareholding

NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: Johnson Matthey plc2. Reason for the notification: An acquisition or disposal of voting rights An acquisition or disposal of instruments with similar economic effect to qualifying instruments3. Full name of person(s) subject to the notification obligation: BlackRock, Inc.4. Full name of shareholder(s) (if different from 3.): N/A5. Date of the transaction (and date on which the threshold is crossed or reached if different): 18 February 20136. Date on which issuer notified: 20 February 20137. Threshold(s) that is/are crossed or reached: Holding has gone below 10%8. Notified details:A. VOTING RIGHTS ATTACHED TO SHARES: Class/type of shares (if possible using the ISIN CODE): GB00B70FPS60 Situation previous to the triggering transaction: Number of shares: 21,262,792 Number of voting rights: 21,262,792 Resulting situation after the triggering transaction: Number of shares (direct): N/A Number of voting rights (direct): N/A Number of voting rights (indirect): 20,164,605 % of voting rights (direct): N/A % of voting rights (indirect): 9.84%B QUALIFYING FINANCIAL INSTRUMENTS N/AC FINANCIAL INSTRUMENTS WITH SIMILAR ECONOMIC EFFECT TO QUALIFYING FNIANCIAL INSTRUMENTS Type of financial instrument: CFD Exercise price: N/A Expiration date: N/A Exercise/Conversion period: N/A Number of voting rights instrument refers to: 145,161 % of voting rights (Nominal): 0.07% % of voting rights (Delta): 0.07% Total voting rights: 20,309,766 shares (9.91%)9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held if applicable: BlackRock Investment Management (UK) Limited - 20,309,766 shares (9.91%)10. Name of the proxy holder:11. Number of voting rights proxy holder will cease to hold:12. Date on which proxy holder will cease to hold voting rights:13. Additional Information14. Contact Name:15. Angela Purtill, Deputy Company Secretary, Johnson Matthey plc Contact Telephone Number: 020 7269 8461

20 February 2013