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:

Completion of the court-sanctioned scheme of arrangement and all-share merger under Part 26 of the Companies Act 2006 of Aberdeen Asset Management PLC and Standard Life plc which became effec-tive on 14 August 2017. As a consequence various investment management companies having dele-gated voting rights across a number of client portfolios have become affiliated entities (per FCA Glos-sary definition) and threshold limits have been triggered.

3

Full name of person(s) subject to the notification obligation:

Aggregate of Standard Life Aberdeen plc affiliated investment management entities with delegated voting rights on behalf of multiple managed portfolios

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):

14 August 2017

6

Date on which issuer notified:

16 August 2017

7

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

Standard Life Aberdeen plc - 8%

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:

0

Number of voting rights:

0

Resulting situation after the triggering transaction:

Number of shares (direct):

N/A

Number of voting rights (direct):

N/A

Number of voting rights (indirect):

17,236,597

% of voting rights (direct):

N/A

% of voting rights (indirect):

8.90%

Total voting rights:

17,236,597 (8.90%)

9

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

Standard Life Investments Limited - 5.96%

Ignis Investment Services Limited - 1.31%

Standard Life Wealth Limited - 0.04%

Aberdeen Asset Managers Limited - 0.36%

Aberdeen Asset Investments Limited - 1.23%

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

As a result of the completion of the court-sanctioned scheme of arrangement and all-share merger under Part 26 of the Companies Act 2006 of Aberdeen Asset Management PLC and Standard Life plc which became effective on 14 August 2017, this notification details the assets under management of the new Combined Group ('Standard Life Aberdeen plc') as of the dates noted above.

In reference to section 9, the shares detailed are managed by the named discretionary investment management entity within multiple portfolios on behalf of underlying clients, based on investment management agreements whereby the client has delegated the exercise of the voting power to the referenced investment manager.

14

Contact Name:

Victoria Barlow, Deputy Company Secretary, Johnson Matthey Plc

15

Contact Telephone Number:

020 7269 8431

17 August 2017