Vesuvius Regulatory News (VSVS)

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

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

Vesuvius plc

2. Reason for the notification (please state Yes/No):

An acquisition or disposal of voting rights: (YES)

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

An event changing the breakdown of voting rights:

Other (please specify)

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

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.):

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

5. Date of the transaction (and date on which the threshold is crossed or reached if different): 14 October 2014

6. Date on which issuer notified: 15 October 2014

7. Threshold(s) that is/are crossed or reached: Above 11%

8. Notified details:

A: Voting rights attached to shares

Resulting situation after the triggering transaction

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Total (A+B+C)

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

Proxy Voting:

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.

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:

Dominic Murray, Assistant Secretary, Vesuvius plc

15. Contact telephone number:

+ 44 (0)20 7822 0000