Vesuvius Regulatory News (VSVS)

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible)i

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

Vesuvius PLC

LEI: 213800ORZ521W585SY02

1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate)

Non-UK issuer

2. Reason for the notification (please mark the appropriate box or boxes with an "X")

An acquisition or disposal of voting rights

X

An acquisition or disposal of financial instruments

An event changing the breakdown of voting rights

Other (please specify)iii:

3. Details of person subject to the notification obligationiv

Name

Artisan Partners Limited Partnership

City and country of registered office (if applicable)

Wilmington, DE, United States of America

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

Name

State Street Bank (Boston, USA), Mellon Bank (Pittsburgh, USA), Northern Trust (Chicago, USA), Bank of New York (New York, USA), Pictet & Cie (Geneva, Switzerland), US Bank (St. Louis, USA)

City and country of registered office (if applicable)

See 4. (Name) Above

5. Date on which the threshold was crossed or reachedvi:

26/07/2017

6. Date on which issuer notified (DD/MM/YYYY):

27/07/2017

7. Total positions of person(s) subject to the notification obligation

% of voting rights attached to shares (total of 8. A)

% of voting rights through financial instruments(total of 8.B 1 + 8.B 2)

Total of both in % (8.A + 8.B)

Total number of voting rights of issuervii

Resulting situation on the date on which threshold was crossed or reached

4.97%

0.0%

4.97%

271,213,897

Position of previous notification (if

applicable)

9.57%

0.0%

9.57%

8. Notified details of the resulting situation on the date on which the threshold was crossed or reachedviii

A: Voting rights attached to shares

Class/type ofshares

ISIN code (if possible)

Number of voting rightsix

% of voting rights

Direct

(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect

(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

Direct

(Art 9 of Directive 2004/109/EC) (DTR5.1)

Indirect

(Art 10 of Directive 2004/109/EC) (DTR5.2.1)

GB00B82YXW83

13,473,720

4.97%

SUBTOTAL 8. A

13,473,720

4.97%

B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1 (a))

Type of financial instrument

Expirationdatex

Exercise/Conversion Periodxi

Number of voting rights that may be acquired if the instrument is

exercised/converted.

% of voting rights

SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b))

Type of financial instrument

Expirationdatex

Exercise/Conversion Period xi

Physical or cash

settlementxii

Number of voting rights

% of voting rights

SUBTOTAL 8.B.2

9. Information in relation to the person subject to the notification obligation (please mark the

applicable box with an "X")

Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuerxiii

Full chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held starting with the ultimate controlling natural person or legal entityxiv (please add additional rows as necessary)

X

Namexv

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial instruments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

Artisan Partners Asset Management Inc.

Artisan Partners Holdings LP

Artisan Partners Investments GP LLC

Artisan Partners Limited Partnership

10. In case of proxy voting, please identify:

Name of the proxy holder

Artisan Partners Limited Partnership

The number and % of voting rights held

13,473,720 voting rights and 4.97%

The date until which the voting rights will be held

N/A

11. Additional informationxvi

Artisan International Value Fund ("ARTIV"), is a series of Artisan Partners Funds Inc., a U.S. registered investment company. Certain officers and a director of Artisan Partners Funds, Inc. are employees of Artisan Partners Limited Partnership ("APLP"). APLP pursuant to its advisory contract with ARTIV has the power to purchase and sell securities on behalf of ARTIV and to vote for ARTIV. ARTIV, as of 26/07/2017, was interested in 9,647,109 shares, representing 3.56% of the 4.97% disclosed above, of Vesuvius PLC.

Place of completion

Milwaukee, United States of America

Date of completion

27/07/2017