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:

22 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:

214,740

0.45%

179,847

0.38%

(2)

Cash-settled derivatives:

and/or controlled:

179,412

0.38%

216,289

0.46%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

394,152

0.83%

396,136

0.84%

(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

254

31.2000 EUR

30.0838 EUR

EUR 1 ordinary

Sale

781

31.2000 EUR

29.8000 EUR

EUR 1 ordinary

Purchase

6,958

25.9312 GBP

24.9500 GBP

EUR 1 ordinary

Sale

28,758

25.5771 GBP

25.1250 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

1,980

25.2328 GBP

EUR 1 ordinary

SWAP

Increasing Long

677

25.2565 GBP

EUR 1 ordinary

SWAP

Increasing Long

2,029

25.3000 GBP

EUR 1 ordinary

SWAP

Decreasing Long

60

25.5175 GBP

EUR 1 ordinary

SWAP

Opening Long

64

25.3000 GBP

EUR 1 ordinary

SWAP

Increasing Long

2

25.3750 GBP

EUR 1 ordinary

CFD

Decreasing Long

475

25.1739 GBP

EUR 1 ordinary

CFD

Decreasing Short

432

29.9911 EUR

EUR 1 ordinary

CFD

Decreasing Long

218

25.0824 GBP

EUR 1 ordinary

CFD

Decreasing Long

380

25.6730 GBP

EUR 1 ordinary

CFD

Decreasing Long

158

25.3568 GBP

EUR 1 ordinary

CFD

Increasing Long

265

25.3020 GBP

EUR 1 ordinary

SWAP

Increasing Short

936

25.3136 GBP

EUR 1 ordinary

SWAP

Decreasing Short

10,048

25.2578 GBP

EUR 1 ordinary

SWAP

Decreasing Short

39

25.2578 GBP

EUR 1 ordinary

SWAP

Decreasing Long

183

25.3000 GBP

EUR 1 ordinary

SWAP

Increasing Long

613

25.2989 GBP

EUR 1 ordinary

SWAP

Increasing Long

549

25.0986 GBP

EUR 1 ordinary

SWAP

Increasing Long

46

25.2380 GBP

EUR 1 ordinary

SWAP

Increasing Long

10

25.3000 GBP

EUR 1 ordinary

SWAP

Decreasing Long

152

25.3078 GBP

EUR 1 ordinary

CFD

Decreasing Long

294

25.1178 GBP

EUR 1 ordinary

CFD

Decreasing Long

237

25.3000 GBP

EUR 1 ordinary

SWAP

Increasing Long

342

25.5771 GBP

EUR 1 ordinary

SWAP

Increasing Long

1,489

25.2536 GBP

EUR 1 ordinary

SWAP

Increasing Long

1

25.4500 GBP

EUR 1 ordinary

SWAP

Increasing Long

3,717

25.3000 GBP

EUR 1 ordinary

SWAP

Increasing Long

442

25.3000 GBP

EUR 1 ordinary

CFD

Increasing Long

616

25.3000 GBP

EUR 1 ordinary

SWAP

Increasing Long

758

25.2137 GBP

EUR 1 ordinary

SWAP

Decreasing Long

62

25.1500 GBP

EUR 1 ordinary

SWAP

Increasing Long

473

25.3000 GBP

EUR 1 ordinary

SWAP

Increasing Long

168

25.1785 GBP

EUR 1 ordinary

SWAP

Decreasing Long

60

25.2375 GBP

EUR 1 ordinary

SWAP

Increasing Long

498

25.2256 GBP

EUR 1 ordinary

SWAP

Increasing Long

100

25.1770 GBP

EUR 1 ordinary

SWAP

Increasing Long

313

25.2662 GBP

EUR 1 ordinary

SWAP

Decreasing Long

246

25.3178 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:

23 Oct 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213