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 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:

853,379

2.39%

109,671

0.31%

(2)

Cash-settled derivatives:

121,929

0.34%

850,674

2.38%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

975,308

2.73%

960,345

2.69%

(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

8,072

32.9025 EUR

EUR 0.02 ordinary

Purchase

6,052

32.6022 EUR

EUR 0.02 ordinary

Purchase

5,678

32.9000 EUR

EUR 0.02 ordinary

Purchase

2,866

32.9019 EUR

EUR 0.02 ordinary

Purchase

2,691

32.8628 EUR

EUR 0.02 ordinary

Purchase

1,858

32.5258 EUR

EUR 0.02 ordinary

Purchase

1,758

32.5204 EUR

EUR 0.02 ordinary

Purchase

1,757

32.6864 EUR

EUR 0.02 ordinary

Purchase

762

32.9955 EUR

EUR 0.02 ordinary

Purchase

676

32.5359 EUR

EUR 0.02 ordinary

Purchase

500

32.7639 EUR

EUR 0.02 ordinary

Purchase

439

32.6145 EUR

EUR 0.02 ordinary

Purchase

402

32.6044 EUR

EUR 0.02 ordinary

Purchase

397

32.6309 EUR

EUR 0.02 ordinary

Purchase

344

32.7565 EUR

EUR 0.02 ordinary

Purchase

328

32.6434 EUR

EUR 0.02 ordinary

Purchase

301

32.6251 EUR

EUR 0.02 ordinary

Purchase

248

32.6497 EUR

EUR 0.02 ordinary

Purchase

220

32.6300 EUR

EUR 0.02 ordinary

Purchase

209

32.6400 EUR

EUR 0.02 ordinary

Purchase

187

32.6019 EUR

EUR 0.02 ordinary

Purchase

184

32.6619 EUR

EUR 0.02 ordinary

Purchase

178

32.6000 EUR

EUR 0.02 ordinary

Purchase

138

32.4833 EUR

EUR 0.02 ordinary

Purchase

135

32.6632 EUR

EUR 0.02 ordinary

Purchase

113

32.6200 EUR

EUR 0.02 ordinary

Purchase

113

32.5800 EUR

EUR 0.02 ordinary

Purchase

109

32.5400 EUR

EUR 0.02 ordinary

Purchase

107

32.5200 EUR

EUR 0.02 ordinary

Purchase

103

32.6392 EUR

EUR 0.02 ordinary

Purchase

98

32.5902 EUR

EUR 0.02 ordinary

Purchase

97

32.4526 EUR

EUR 0.02 ordinary

Purchase

81

32.4200 EUR

EUR 0.02 ordinary

Purchase

78

32.6225 EUR

EUR 0.02 ordinary

Purchase

68

32.7566 EUR

EUR 0.02 ordinary

Purchase

67

32.7200 EUR

EUR 0.02 ordinary

Purchase

60

32.5000 EUR

EUR 0.02 ordinary

Purchase

57

32.5280 EUR

EUR 0.02 ordinary

Purchase

56

32.5700 EUR

EUR 0.02 ordinary

Purchase

56

32.5600 EUR

EUR 0.02 ordinary

Purchase

52

32.4100 EUR

EUR 0.02 ordinary

Purchase

48

32.7564 EUR

EUR 0.02 ordinary

Purchase

48

32.4800 EUR

EUR 0.02 ordinary

Purchase

43

32.5190 EUR

EUR 0.02 ordinary

Purchase

42

32.3800 EUR

EUR 0.02 ordinary

Purchase

38

32.6310 EUR

EUR 0.02 ordinary

Purchase

27

32.7000 EUR

EUR 0.02 ordinary

Purchase

26

32.6600 EUR

EUR 0.02 ordinary

Purchase

20

32.5242 EUR

EUR 0.02 ordinary

Purchase

20

32.4600 EUR

EUR 0.02 ordinary

Purchase

15

32.4400 EUR

EUR 0.02 ordinary

Purchase

14

32.6800 EUR

EUR 0.02 ordinary

Purchase

13

32.5505 EUR

EUR 0.02 ordinary

Purchase

11

32.6100 EUR

EUR 0.02 ordinary

Sale

11,687

32.9000 EUR

EUR 0.02 ordinary

Sale

5,762

32.5233 EUR

EUR 0.02 ordinary

Sale

3,606

32.5251 EUR

EUR 0.02 ordinary

Sale

2,691

32.8628 EUR

EUR 0.02 ordinary

Sale

878

32.6145 EUR

EUR 0.02 ordinary

Sale

776

32.8277 EUR

EUR 0.02 ordinary

Sale

519

32.8959 EUR

EUR 0.02 ordinary

Sale

486

32.6483 EUR

EUR 0.02 ordinary

Sale

420

32.7955 EUR

EUR 0.02 ordinary

Sale

381

32.9955 EUR

EUR 0.02 ordinary

Sale

332

32.4974 EUR

EUR 0.02 ordinary

Sale

250

32.5879 EUR

EUR 0.02 ordinary

Sale

245

32.6029 EUR

EUR 0.02 ordinary

Sale

233

32.3901 EUR

EUR 0.02 ordinary

Sale

219

32.5942 EUR

EUR 0.02 ordinary

Sale

218

32.5400 EUR

EUR 0.02 ordinary

Sale

216

32.6400 EUR

EUR 0.02 ordinary

Sale

178

32.6000 EUR

EUR 0.02 ordinary

Sale

164

32.6434 EUR

EUR 0.02 ordinary

Sale

162

32.4200 EUR

EUR 0.02 ordinary

Sale

151

32.4931 EUR

EUR 0.02 ordinary

Sale

128

32.5591 EUR

EUR 0.02 ordinary

Sale

113

32.5800 EUR

EUR 0.02 ordinary

Sale

110

32.6300 EUR

EUR 0.02 ordinary

Sale

107

32.5200 EUR

EUR 0.02 ordinary

Sale

95

32.6200 EUR

EUR 0.02 ordinary

Sale

84

32.5628 EUR

EUR 0.02 ordinary

Sale

67

32.7200 EUR

EUR 0.02 ordinary

Sale

60

32.5000 EUR

EUR 0.02 ordinary

Sale

56

32.5600 EUR

EUR 0.02 ordinary

Sale

56

32.5700 EUR

EUR 0.02 ordinary

Sale

50

32.5014 EUR

EUR 0.02 ordinary

Sale

42

32.3800 EUR

EUR 0.02 ordinary

Sale

30

32.5779 EUR

EUR 0.02 ordinary

Sale

27

32.7000 EUR

EUR 0.02 ordinary

Sale

26

32.5100 EUR

EUR 0.02 ordinary

Sale

26

32.6600 EUR

EUR 0.02 ordinary

Sale

26

32.4600 EUR

EUR 0.02 ordinary

Sale

23

32.7130 EUR

EUR 0.02 ordinary

Sale

22

32.6100 EUR

EUR 0.02 ordinary

Sale

20

32.5275 EUR

EUR 0.02 ordinary

Sale

19

32.5768 EUR

EUR 0.02 ordinary

Sale

18

32.6700 EUR

EUR 0.02 ordinary

Sale

15

32.4400 EUR

EUR 0.02 ordinary

Sale

14

32.6800 EUR

EUR 0.02 ordinary

Sale

12

32.4800 EUR

EUR 0.02 ordinary

Sale

4

32.5832 EUR

EUR 0.02 ordinary

Sale

4

32.4700 EUR

EUR 0.02 ordinary

Sale

1

32.5432 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

Opening Short

118

32.6528 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

19

32.5768 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

81

32.4174 EUR

EUR 0.02 ordinary

CFD

Increasing Short

57

32.5280 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

676

32.5359 EUR

EUR 0.02 ordinary

SWAP

Opening Short

48

32.7564 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

344

32.7565 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

68

32.7566 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

519

32.5887 EUR

EUR 0.02 ordinary

CFD

Increasing Short

46

32.6226 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

184

32.6619 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

827

32.9025 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

6,056

32.9025 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,189

32.9025 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

439

32.6145 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

97

32.4526 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

68

32.5460 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

187

32.6019 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

65

32.6400 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

397

32.6309 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2

32.9000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,866

32.9019 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

5

32.9000 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

4,407

32.9000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

18

32.6200 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

478

32.4991 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

404

32.6287 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

6,052

32.6022 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

5,762

32.5233 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:

29 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213