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:

10 Jun 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:

812,366

2.27%

121,320

0.34%

(2)

Cash-settled derivatives:

128,678

0.36%

806,180

2.25%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

941,044

2.63%

927,500

2.59%

(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

16,598

33.6600 EUR

EUR 0.02 ordinary

Purchase

6,143

33.7684 EUR

EUR 0.02 ordinary

Purchase

3,391

33.7205 EUR

EUR 0.02 ordinary

Purchase

2,577

33.7434 EUR

EUR 0.02 ordinary

Purchase

2,545

33.7968 EUR

EUR 0.02 ordinary

Purchase

1,281

33.6964 EUR

EUR 0.02 ordinary

Purchase

868

33.6608 EUR

EUR 0.02 ordinary

Purchase

582

33.6728 EUR

EUR 0.02 ordinary

Purchase

514

33.7923 EUR

EUR 0.02 ordinary

Purchase

373

34.0234 EUR

EUR 0.02 ordinary

Purchase

229

33.7200 EUR

EUR 0.02 ordinary

Purchase

207

33.7900 EUR

EUR 0.02 ordinary

Purchase

199

33.6441 EUR

EUR 0.02 ordinary

Purchase

159

33.9000 EUR

EUR 0.02 ordinary

Purchase

132

34.1400 EUR

EUR 0.02 ordinary

Purchase

115

33.9600 EUR

EUR 0.02 ordinary

Purchase

113

33.8400 EUR

EUR 0.02 ordinary

Purchase

107

33.8863 EUR

EUR 0.02 ordinary

Purchase

93

33.7000 EUR

EUR 0.02 ordinary

Purchase

92

33.8600 EUR

EUR 0.02 ordinary

Purchase

91

33.5600 EUR

EUR 0.02 ordinary

Purchase

88

33.7800 EUR

EUR 0.02 ordinary

Purchase

72

33.5000 EUR

EUR 0.02 ordinary

Purchase

72

33.4800 EUR

EUR 0.02 ordinary

Purchase

69

33.8000 EUR

EUR 0.02 ordinary

Purchase

69

33.7600 EUR

EUR 0.02 ordinary

Purchase

67

33.5200 EUR

EUR 0.02 ordinary

Purchase

54

33.9800 EUR

EUR 0.02 ordinary

Purchase

48

34.1000 EUR

EUR 0.02 ordinary

Purchase

48

33.4600 EUR

EUR 0.02 ordinary

Purchase

47

33.7400 EUR

EUR 0.02 ordinary

Purchase

47

34.1042 EUR

EUR 0.02 ordinary

Purchase

46

33.8200 EUR

EUR 0.02 ordinary

Purchase

46

33.6200 EUR

EUR 0.02 ordinary

Purchase

45

33.6800 EUR

EUR 0.02 ordinary

Purchase

45

33.8800 EUR

EUR 0.02 ordinary

Purchase

38

33.5400 EUR

EUR 0.02 ordinary

Purchase

25

34.0000 EUR

EUR 0.02 ordinary

Purchase

25

33.6000 EUR

EUR 0.02 ordinary

Purchase

25

33.5800 EUR

EUR 0.02 ordinary

Purchase

24

34.1200 EUR

EUR 0.02 ordinary

Purchase

23

33.9200 EUR

EUR 0.02 ordinary

Purchase

21

34.0400 EUR

EUR 0.02 ordinary

Purchase

21

33.6400 EUR

EUR 0.02 ordinary

Purchase

21

34.0600 EUR

EUR 0.02 ordinary

Purchase

2

33.6089 EUR

EUR 0.02 ordinary

Purchase

1

34.1989 EUR

EUR 0.02 ordinary

Sale

15,692

33.6600 EUR

EUR 0.02 ordinary

Sale

5,496

33.7598 EUR

EUR 0.02 ordinary

Sale

3,633

33.6239 EUR

EUR 0.02 ordinary

Sale

1,821

34.1591 EUR

EUR 0.02 ordinary

Sale

1,096

33.6667 EUR

EUR 0.02 ordinary

Sale

906

33.6897 EUR

EUR 0.02 ordinary

Sale

815

33.6628 EUR

EUR 0.02 ordinary

Sale

740

33.9543 EUR

EUR 0.02 ordinary

Sale

590

33.6072 EUR

EUR 0.02 ordinary

Sale

390

33.5700 EUR

EUR 0.02 ordinary

Sale

315

33.7400 EUR

EUR 0.02 ordinary

Sale

289

33.5127 EUR

EUR 0.02 ordinary

Sale

207

33.7900 EUR

EUR 0.02 ordinary

Sale

159

33.9000 EUR

EUR 0.02 ordinary

Sale

132

34.1400 EUR

EUR 0.02 ordinary

Sale

128

34.1976 EUR

EUR 0.02 ordinary

Sale

115

33.9600 EUR

EUR 0.02 ordinary

Sale

113

33.8400 EUR

EUR 0.02 ordinary

Sale

104

33.5505 EUR

EUR 0.02 ordinary

Sale

95

34.1600 EUR

EUR 0.02 ordinary

Sale

93

33.7000 EUR

EUR 0.02 ordinary

Sale

92

33.7513 EUR

EUR 0.02 ordinary

Sale

92

33.8600 EUR

EUR 0.02 ordinary

Sale

91

33.7200 EUR

EUR 0.02 ordinary

Sale

91

33.5600 EUR

EUR 0.02 ordinary

Sale

88

33.7800 EUR

EUR 0.02 ordinary

Sale

77

33.5394 EUR

EUR 0.02 ordinary

Sale

72

33.4800 EUR

EUR 0.02 ordinary

Sale

72

33.5000 EUR

EUR 0.02 ordinary

Sale

69

33.8000 EUR

EUR 0.02 ordinary

Sale

69

33.7600 EUR

EUR 0.02 ordinary

Sale

67

33.5200 EUR

EUR 0.02 ordinary

Sale

54

33.9800 EUR

EUR 0.02 ordinary

Sale

48

33.4600 EUR

EUR 0.02 ordinary

Sale

48

34.1000 EUR

EUR 0.02 ordinary

Sale

46

33.6200 EUR

EUR 0.02 ordinary

Sale

46

33.8200 EUR

EUR 0.02 ordinary

Sale

45

33.8800 EUR

EUR 0.02 ordinary

Sale

45

33.6800 EUR

EUR 0.02 ordinary

Sale

39

33.9400 EUR

EUR 0.02 ordinary

Sale

26

33.5800 EUR

EUR 0.02 ordinary

Sale

25

34.0000 EUR

EUR 0.02 ordinary

Sale

25

33.6000 EUR

EUR 0.02 ordinary

Sale

25

33.5400 EUR

EUR 0.02 ordinary

Sale

24

34.1200 EUR

EUR 0.02 ordinary

Sale

23

33.9200 EUR

EUR 0.02 ordinary

Sale

21

33.6400 EUR

EUR 0.02 ordinary

Sale

21

34.0400 EUR

EUR 0.02 ordinary

Sale

21

34.0600 EUR

EUR 0.02 ordinary

Sale

4

33.7210 EUR

EUR 0.02 ordinary

Sale

2

33.6100 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

71

34.0842 EUR

EUR 0.02 ordinary

CFD

Decreasing Long

11

33.6609 EUR

EUR 0.02 ordinary

CFD

Increasing Short

36

34.2427 EUR

EUR 0.02 ordinary

CFD

Increasing Short

13

33.5400 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

92

33.7513 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

4,589

33.6107 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

128

34.1976 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

373

34.0234 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

204

33.9471 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,555

33.6753 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

1,083

33.6819 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

1,821

34.1591 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,711

33.7422 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

6,143

33.7684 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:

11 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213