Form8.3AMGLITHIUMB.V.(ADIRECTWHOLLY-OWNEDSUBSIDIAR

FORM 8.3

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR

MORE

Rule 8.3 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Full name of discloser:

Barclays PLC.

(b)

Owner or controller of interest and short

positions disclosed, if different from 1(a):

(c)

Name of offeror/offeree in relation to whose

AMG LITHIUM B.V. (A DIRECT WHOLLY-OWNED SUBSIDIARY OF AMG CRITICAL MATERIALS N.V.)

relevant securities this form relates:

(d)

If an exempt fund manager connected with an

offeror/offeree, state this and specify identity of

offeror/offeree:

(e)

Date position held/dealing undertaken:

26 May 2026

(f)

In addition to the company in 1(c) above, is the discloser making

YES:

disclosures in respect of any other party to the offer?

ZINNWALD LITHIUM PLC

2.

POSITIONS OF THE PERSON MAKING THE DISCLOSURE

(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 0.02 ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

799,505

2.24%

124,020

0.35%

(2)

Cash-settled derivatives:

132,954

0.37%

793,790

2.22%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

932,459

2.61%

917,810

2.57%

(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 PERSON MAKING THE DISCLOSURE

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

EUR 0.02 ordinary

Purchase

14,285

39.8068 EUR

EUR 0.02 ordinary

Purchase

3,919

39.4964 EUR

EUR 0.02 ordinary

Purchase

2,092

39.8580 EUR

EUR 0.02 ordinary

Purchase

1,403

39.3200 EUR

EUR 0.02 ordinary

Purchase

1,311

39.3213 EUR

EUR 0.02 ordinary

Purchase

1,221

39.8193 EUR

EUR 0.02 ordinary

Purchase

625

39.6981 EUR

EUR 0.02 ordinary

Purchase

537

39.3215 EUR

EUR 0.02 ordinary

Purchase

301

39.7480 EUR

EUR 0.02 ordinary

Purchase

187

39.9000 EUR

EUR 0.02 ordinary

Purchase

131

39.8800 EUR

EUR 0.02 ordinary

Purchase

119

39.7900 EUR

EUR 0.02 ordinary

Purchase

98

39.5881 EUR

EUR 0.02 ordinary

Purchase

51

39.8067 EUR

EUR 0.02 ordinary

Purchase

40

39.7800 EUR

EUR 0.02 ordinary

Purchase

38

39.4900 EUR

EUR 0.02 ordinary

Purchase

34

39.6650 EUR

EUR 0.02 ordinary

Purchase

16

39.7062 EUR

EUR 0.02 ordinary

Purchase

14

39.8971 EUR

EUR 0.02 ordinary

Purchase

12

39.4860 EUR

EUR 0.02 ordinary

Purchase

9

39.8300 EUR

EUR 0.02 ordinary

Purchase

3

39.8200 EUR

EUR 0.02 ordinary

Purchase

2

39.8000 EUR

EUR 0.02 ordinary

Sale

5,057

39.3249 EUR

EUR 0.02 ordinary

Sale

3,828

39.5507 EUR

EUR 0.02 ordinary

Sale

1,488

39.6522 EUR

EUR 0.02 ordinary

Sale

1,477

39.4892 EUR

EUR 0.02 ordinary

Sale

1,315

39.3259 EUR

EUR 0.02 ordinary

Sale

1,289

39.3200 EUR

EUR 0.02 ordinary

Sale

1,154

39.4439 EUR

EUR 0.02 ordinary

Sale

755

39.3231 EUR

EUR 0.02 ordinary

Sale

605

39.7425 EUR

EUR 0.02 ordinary

Sale

544

39.6720 EUR

EUR 0.02 ordinary

Sale

327

39.7389 EUR

EUR 0.02 ordinary

Sale

253

39.6697 EUR

EUR 0.02 ordinary

Sale

248

39.7588 EUR

EUR 0.02 ordinary

Sale

201

39.6176 EUR

EUR 0.02 ordinary

Sale

195

39.6903 EUR

EUR 0.02 ordinary

Sale

119

39.7600 EUR

EUR 0.02 ordinary

Sale

119

39.7900 EUR

EUR 0.02 ordinary

Sale

74

39.8043 EUR

EUR 0.02 ordinary

Sale

71

39.7028 EUR

EUR 0.02 ordinary

Sale

71

39.7839 EUR

EUR 0.02 ordinary

Sale

68

39.7400 EUR

EUR 0.02 ordinary

Sale

68

39.7850 EUR

EUR 0.02 ordinary

Sale

50

39.4900 EUR

EUR 0.02 ordinary

Sale

47

39.5939 EUR

EUR 0.02 ordinary

Sale

21

39.8800 EUR

EUR 0.02 ordinary

Sale

9

39.8300 EUR

EUR 0.02 ordinary

Sale

5

39.6600 EUR

EUR 0.02 ordinary

Sale

3

39.8200 EUR

EUR 0.02 ordinary

Sale

2

39.8000 EUR

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

EUR 0.02 ordinary

SWAP

Decreasing Short

1,154

39.4439 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

648

39.6170 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

320

39.6705 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

195

39.6903 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

506

39.7101 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

327

39.7389 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

136

39.7625 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

2

39.8800 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

70

39.3200 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,311

39.3213 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

537

39.3215 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

14

39.6114 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

34

39.6650 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

16

39.7062 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

352

39.7564 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

14,285

39.8068 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,092

39.8580 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

187

39.9000 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

5,057

39.3249 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

3,828

39.5507 EUR

EUR 0.02 ordinary

CFD

Increasing Short

1,261

39.8212 EUR

(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)

Exercise

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 person 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:

27 May 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213