Vesuvius : Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuer
of existing shares to which voting rights are
attached:ii

Vesuvius PLC

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

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

Artisan Partners Limited Partnership, Artisan

Investments GP LLC, Artisan Partners Holdings LP,

and Artisan Partners Asset Management Inc.

4. Full name of shareholder(s)
(if different from 3.):iv

State Street Bank, Mellon Bank, Northern Trust, Bank of New York, Pictet & Cie, US Bank

5. Date of the transaction and date on
which the threshold is crossed or
reached: v

August 20, 2015

6. Date on which issuer notified:

August 21, 2015

7. Threshold(s) that is/are crossed or
reached: vi, vii

Above 12%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type of
shares

if possible using
the ISIN CODE

Situation previous
to the triggering
transaction

Resulting situation after the triggering transaction

Number
of
Shares

Number
of
Voting
Rights

Number
of shares

Number of voting
rights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB00B82YXW83

32,061,072

11.82%

32,649,535

12.04%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial
instrument

Expiration
date xiii

Exercise/
Conversion Period xiv

Number of voting
rights that may be
acquired if the
instrument is
exercised/ converted.

% of voting
rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financial
instrument

Exercise price

Expiration date xvii

Exercise/
Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

32,649,535

12.04%

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

Artisan Partners Limited Partnership ("APLP"), a U.S. registered investment adviser, is a limited

partnership organized under the laws of the State of Delaware. Control of APLP is vested in its general partner, Artisan Investments GP LLC ("Artisan LLC"), a limited liability company organized under the laws of the State of Delaware. Artisan Partners Holdings LP ("Artisan Holdings") is the sole member of Artisan LLC, and is the sole limited partner of APLP. Control of Artisan Holdings is vested in its general partner, Artisan Partners Asset Management Inc. ("APAM"), organized under the laws of the State of Delaware.

APAM is a publicly traded Company and has in issue three classes of common stock as well as preferred stock. No single undertaking is now in control of APAM.

Proxy Voting:

10. Name of the proxy holder:

Artisan Partners Limited Partnership

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:

14. Contact name:

Benjamin Prokash

15. Contact telephone number:

+1 414 299 4315