Vesuvius Regulatory News (VSVS)

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

November 25, 2015

6. Date on which issuer notified:

November 25, 2015

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

Above 13%

  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

xi

Direct

xii

Indirect

Direct

Indirect

GB00B82YXW83

34,920,345

12.88%

35,378,349

13.04%

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

35,378,349

13.04%

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:

414.299.4315