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 3. Full name of person(s) subject to the notification obligation: Norges Bank 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): 10 July 2013 6. Date on which issuer notified: 11 July 2013 7. Threshold(s) that is/are crossed or reached: Above 4% 8. Notified details: 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: 8,168,358 Number of voting rights: 8,168,358 Resulting situation after the triggering transaction: Number of shares (direct): 8,348,729 Number of voting rights (direct): 8,348,729 Number of voting rights (indirect): N/A % of voting rights (direct): 4.07% % of voting rights (indirect): N/A Total voting rights: 8,348,729 (4.07%) 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held if applicable: N/A 10. Name of the proxy holder: N/A 11. Number of voting rights proxy holder will cease to hold: N/A 12. Date on which proxy holder will cease to hold voting rights: N/A 13. Additional Information N/A 14. Contact Name: 15. Angela Purtill, Deputy Company Secretary, Johnson Matthey plc Contact Telephone Number: 020 7269 8461

11 July 2013