Johnson Matthey Regulatory News (JMAT)

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 plc 2. Reason for the notification: An acquisition or disposal of voting rights An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments 3. Full name of person(s) subject to the notification obligation: BlackRock, Inc. 4. Full name of shareholder(s) (if different from 3.): N/A 5. Date of the transaction (and date on which the threshold is crossed or reached if different): 26 July 2013 6. Date on which issuer notified: 30 July 2013 7. Threshold(s) that is/are crossed or reached: Holding has gone above 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: 20,243,334 Number of voting rights: 20,243,334 Resulting situation after the triggering transaction: Number of shares (direct): N/A Number of voting rights (direct): N/A Number of voting rights (indirect): 20,310,605 % of voting rights (direct): N/A % of voting rights (indirect): 9.91% B QUALIFYING FINANCIAL INSTRUMENTS N/A C 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: 272,708 % of voting rights (Nominal): 0.13% % of voting rights (Delta): 0.13% Total voting rights: 20,583,313 shares (10.04%) 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 - 20,583,313 shares (10.04%) 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 Information: 14. Contact Name: Angela Purtill, Deputy Company Secretary, Johnson Matthey plc 15. Contact Telephone Number: 020 7269 8461

31 July 2013