Form 8.5 EPT/Non RI RHI MAGNESITA N.V.

FORM 8.5 (EPT/NON-RI)

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY AN

EXEMPT PRINCIPAL TRADER WITHOUT RECOGNISED INTERMEDIARY ("RI") STATUS

(OR WHERE RI STATUS IS NOT APPLICABLE)

Rule 8.5 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Name of exempt principal trader:

BARCLAYS CAPITAL SECURITIES LTD

(b)

Name of offeror/offeree in relation to whose

RHI MAGNESITA N.V.

relevant securities this form relates:

(c)

Name of the party to the offer with which exempt

RHI MAGNESITA N.V.

principal trader is connected

(d)

Date position held/dealing undertaken:

01 Oct 2026

(e)

In addition to the company in 1(b) above, is the exempt principal

YES:

trader making disclosures in respect of any other party to the offer?

VESUVIUS PLC

2.

POSITIONS OF THE EXEMPT PRINCIPAL TRADER

(a)

Interests and short positions in the relevant securities of the offeror or offeree

to which the disclosure relates following the dealing (if any)

Class of relevant security:

EUR 1 ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

216,042

0.46%

136,898

0.29%

(2)

Cash-settled derivatives:

and/or controlled:

135,866

0.29%

216,543

0.46%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

351,908

0.74%

353,441

0.75%

(b)

Rights to subscribe for new securities (including directors and other executive

options)

Class of relevant security in relation to

which subscription right exists

Details, including nature of the rights

concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE EXEMPT PRINCIPAL TRADER

(a)

Purchases and sales

Class of relevant

Purchase/sale

Total number of

Highest price per unit

Lowest price per unit

security

securities

paid/received

paid/received

EUR 1 ordinary

Purchase

456

36.3000 EUR

35.5733 EUR

EUR 1 ordinary

Sale

450

35.8000 EUR

35.6541 EUR

EUR 1 ordinary

Purchase

11,892

31.0250 GBP

30.3658 GBP

EUR 1 ordinary

Sale

5,354

31.1500 GBP

30.3497 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

EUR 1 ordinary

SWAP

Increasing Long

10

30.3497 GBP

EUR 1 ordinary

SWAP

Decreasing Long

37

30.9003 GBP

EUR 1 ordinary

SWAP

Increasing Long

319

30.5000 GBP

EUR 1 ordinary

SWAP

Decreasing Long

6

30.5000 GBP

EUR 1 ordinary

SWAP

Decreasing Long

174

30.7787 GBP

EUR 1 ordinary

CFD

Increasing Long

1

35.7800 EUR

EUR 1 ordinary

CFD

Decreasing Long

640

30.7301 GBP

EUR 1 ordinary

SWAP

Decreasing Long

7

36.3185 EUR

EUR 1 ordinary

SWAP

Decreasing Long

610

30.5751 GBP

EUR 1 ordinary

SWAP

Decreasing Long

297

30.5010 GBP

EUR 1 ordinary

SWAP

Decreasing Long

159

30.7665 GBP

EUR 1 ordinary

SWAP

Increasing Long

59

30.6983 GBP

EUR 1 ordinary

SWAP

Increasing Long

22

30.5000 GBP

EUR 1 ordinary

CFD

Increasing Long

157

30.7379 GBP

EUR 1 ordinary

SWAP

Decreasing Long

2,645

30.8207 GBP

EUR 1 ordinary

SWAP

Decreasing Long

8

30.4502 GBP

EUR 1 ordinary

SWAP

Decreasing Long

20

30.8100 GBP

EUR 1 ordinary

SWAP

Decreasing Long

501

30.8023 GBP

EUR 1 ordinary

SWAP

Increasing Long

14

30.5000 GBP

EUR 1 ordinary

SWAP

Decreasing Long

277

30.9010 GBP

EUR 1 ordinary

SWAP

Decreasing Long

50

30.8675 GBP

EUR 1 ordinary

SWAP

Increasing Long

81

30.7750 GBP

EUR 1 ordinary

SWAP

Decreasing Long

2,429

30.8177 GBP

EUR 1 ordinary

SWAP

Increasing Long

288

30.7274 GBP

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class

Product

Writing,

Number

Exercise

Type

Expiry

Option

of

description

purchasing,

of

price

date

money

relevant

selling,

securities

per unit

paid/

security

varying etc

to which

received

option

per unit

relates

(ii)

Exercising

Class of relevant

Product description

Exercising/ exercised against

Number of

Exercise price per

security

securities

unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant

Nature of Dealings

Details

Price per unit (if

security

applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding,

formal or informal, relating to relevant securities which may be an inducement to deal

or refrain from dealing entered into by the exempt principal trader making the disclosure and any party

to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between

the exempt principal trader making the disclosure and any other person relating to:

(i) the voting rights of any relevant securities under any option; or

(ii) the voting rights of future acquisition or disposal of any relevant securities to which

any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

NO

Date of disclosure:

02 Oct 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213