Holding(s) in Company

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: Legal & General Group Plc (L&G) 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): 16 May 2013 6. Date on which issuer notified: 20 May 2013 7. Threshold(s) that is/are crossed or reached: L&G (Above 3%) 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: Below 3% (as at 08/03/2013) Number of voting rights: Below 3% (as at 08/03/2013) Resulting situation after the triggering transaction: Number of shares: 6,235,307 Number of voting rights (direct): 6,235,307 Number of voting rights (indirect): N/A % of voting rights (direct): 3.04% % of voting rights (indirect): N/A Total voting rights: 6,235,307 (3.04%)

9. Chain of controlled undertakings through which the voting rights and/or

the financial instruments are effectively held if applicable:

Legal & General Group Plc (Direct and Indirect) (Group)

Legal & General Investment Management (Holdings) Limited (LGIMH) (Direct and Indirect)

Legal & General Investment Management Limited (Indirect) (LGIM)

Legal & General Group Plc (Direct) (L&G) (6,235,307 - 3.04% = LGAS, LGPL & PMC)

Legal & General Investment Management Legal & General Insurance Holdings(Holdings) Limited (Direct) (LGIMHD) Limited (Direct) (LGIH)

Legal & General Assurance (Pensions Legal & General Assurance Society

Management) Limited (PMC) Limited (LGAS & LGPL) Legal & General Pensions Limited (Direct) (LGPL) 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 Notification using the total voting rights figure of 204,917,749 14. Contact Name: 15. Angela Purtill, Deputy Company Secretary, Johnson Matthey plc Contact Telephone Number: 020 7269 8461

21 May 2013