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:

19 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:

220,153

0.46%

160,917

0.34%

(2)

Cash-settled derivatives:

and/or controlled:

162,478

0.34%

222,996

0.47%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

382,631

0.81%

383,913

0.81%

(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

25

33.8000 EUR

33.8000 EUR

EUR 1 ordinary

Sale

25

33.8000 EUR

33.8000 EUR

EUR 1 ordinary

Purchase

57,240

28.5951 GBP

27.7444 GBP

EUR 1 ordinary

Sale

12,040

28.3211 GBP

27.7495 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

578

28.1991 GBP

EUR 1 ordinary

SWAP

Increasing Long

399

27.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

23

27.9000 GBP

EUR 1 ordinary

SWAP

Increasing Long

229

27.9923 GBP

EUR 1 ordinary

SWAP

Opening Long

132

27.7486 GBP

EUR 1 ordinary

SWAP

Increasing Long

2

28.0000 GBP

EUR 1 ordinary

CFD

Decreasing Short

40

27.7977 GBP

EUR 1 ordinary

CFD

Decreasing Long

435

27.7862 GBP

EUR 1 ordinary

CFD

Decreasing Long

301

28.5951 GBP

EUR 1 ordinary

CFD

Decreasing Long

670

28.2323 GBP

EUR 1 ordinary

SWAP

Increasing Short

1,375

27.8018 GBP

EUR 1 ordinary

SWAP

Increasing Long

14

28.3009 GBP

EUR 1 ordinary

SWAP

Decreasing Long

1,051

28.2432 GBP

EUR 1 ordinary

SWAP

Increasing Long

128

28.0500 GBP

EUR 1 ordinary

SWAP

Opening Long

296

27.9713 GBP

EUR 1 ordinary

SWAP

Increasing Long

518

28.3414 GBP

EUR 1 ordinary

SWAP

Increasing Long

44

28.0000 GBP

EUR 1 ordinary

SWAP

Closing Long

19,771

27.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

515

27.7909 GBP

EUR 1 ordinary

SWAP

Increasing Long

19

28.0000 GBP

EUR 1 ordinary

SWAP

Increasing Long

80

27.7494 GBP

EUR 1 ordinary

SWAP

Closing Long

25,482

27.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

308

28.2416 GBP

EUR 1 ordinary

SWAP

Increasing Long

493

27.7500 GBP

EUR 1 ordinary

SWAP

Decreasing Long

509

28.2389 GBP

EUR 1 ordinary

SWAP

Increasing Long

419

27.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

1

27.7500 GBP

EUR 1 ordinary

SWAP

Decreasing Long

1

27.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

243

28.2415 GBP

EUR 1 ordinary

SWAP

Decreasing Long

47

28.5500 GBP

EUR 1 ordinary

SWAP

Decreasing Long

38

27.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

176

28.0619 GBP

EUR 1 ordinary

SWAP

Increasing Long

340

28.1091 GBP

EUR 1 ordinary

SWAP

Decreasing Long

313

28.2777 GBP

EUR 1 ordinary

SWAP

Increasing Long

26

27.7500 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:

20 Oct 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213