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:

Standard Life Investments (Holdings) Limited

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):

18 May 2017

6

Date on which issuer notified:

19 May 2017

7

Threshold(s) that is/are crossed or reached:

Standard Life Investments Limited - 5%

8

Notified details:

VOTING RIGHTS ATTACHED TO SHARES:

Class/type of shares (if possible using the ISIN CODE):

GB00BZ4BQC70

Situation previous to the triggering transaction:

Number of shares:

10,031,851

Number of voting rights:

10,031,851

Resulting situation after the triggering transaction:

Number of shares (direct):

10,829,249

Number of voting rights (direct):

N/A

Number of voting rights (indirect):

10,829,249

% of voting rights (direct):

N/A

% of voting rights (indirect):

5.59%

Total voting rights:

10,829,249 (5.59%)

9

Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held if applicable:

Standard Life Investments (Holdings) Limited - 5.59%

Standard Life Investments Limited - 5.00%

Ignis Investment Services Limited - Below 5%

PROXY VOTING:

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

Total voting rights of 193,533,430 based on the Company's announcement as at 11 November 2016.

14

Contact Name:

Victoria Barlow, Assistant Company Secretary, Johnson Matthey Plc

15

Contact Telephone Number:

020 7269 8431

19 May 2017