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:

15 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:

752,834

2.11%

128,949

0.36%

(2)

Cash-settled derivatives:

136,678

0.38%

760,559

2.13%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

889,512

2.49%

889,508

2.49%

(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

21,977

36.7200 EUR

EUR 0.02 ordinary

Purchase

15,423

36.7249 EUR

EUR 0.02 ordinary

Purchase

5,486

36.8923 EUR

EUR 0.02 ordinary

Purchase

3,781

36.7958 EUR

EUR 0.02 ordinary

Purchase

3,476

36.7411 EUR

EUR 0.02 ordinary

Purchase

3,460

36.7435 EUR

EUR 0.02 ordinary

Purchase

2,882

36.8013 EUR

EUR 0.02 ordinary

Purchase

2,442

36.8786 EUR

EUR 0.02 ordinary

Purchase

2,283

36.7697 EUR

EUR 0.02 ordinary

Purchase

1,606

36.7379 EUR

EUR 0.02 ordinary

Purchase

1,276

36.7384 EUR

EUR 0.02 ordinary

Purchase

1,182

36.5606 EUR

EUR 0.02 ordinary

Purchase

1,053

36.7182 EUR

EUR 0.02 ordinary

Purchase

899

36.8611 EUR

EUR 0.02 ordinary

Purchase

507

36.7600 EUR

EUR 0.02 ordinary

Purchase

465

36.8473 EUR

EUR 0.02 ordinary

Purchase

455

37.2800 EUR

EUR 0.02 ordinary

Purchase

412

36.7452 EUR

EUR 0.02 ordinary

Purchase

411

36.7972 EUR

EUR 0.02 ordinary

Purchase

342

36.8533 EUR

EUR 0.02 ordinary

Purchase

298

36.7665 EUR

EUR 0.02 ordinary

Purchase

295

36.7800 EUR

EUR 0.02 ordinary

Purchase

268

36.9810 EUR

EUR 0.02 ordinary

Purchase

239

36.8000 EUR

EUR 0.02 ordinary

Purchase

159

36.8800 EUR

EUR 0.02 ordinary

Purchase

150

36.9200 EUR

EUR 0.02 ordinary

Purchase

144

36.8230 EUR

EUR 0.02 ordinary

Purchase

105

36.8400 EUR

EUR 0.02 ordinary

Purchase

100

36.6940 EUR

EUR 0.02 ordinary

Purchase

97

36.8692 EUR

EUR 0.02 ordinary

Purchase

87

36.8964 EUR

EUR 0.02 ordinary

Purchase

73

36.5800 EUR

EUR 0.02 ordinary

Purchase

71

36.5600 EUR

EUR 0.02 ordinary

Purchase

50

36.4200 EUR

EUR 0.02 ordinary

Purchase

48

36.6600 EUR

EUR 0.02 ordinary

Purchase

46

36.6400 EUR

EUR 0.02 ordinary

Purchase

46

36.4600 EUR

EUR 0.02 ordinary

Purchase

45

36.4800 EUR

EUR 0.02 ordinary

Purchase

44

36.7690 EUR

EUR 0.02 ordinary

Purchase

25

36.4000 EUR

EUR 0.02 ordinary

Purchase

25

36.5400 EUR

EUR 0.02 ordinary

Purchase

25

36.6000 EUR

EUR 0.02 ordinary

Purchase

24

36.6200 EUR

EUR 0.02 ordinary

Purchase

23

36.3800 EUR

EUR 0.02 ordinary

Purchase

23

36.6800 EUR

EUR 0.02 ordinary

Purchase

21

37.0400 EUR

EUR 0.02 ordinary

Purchase

9

36.7733 EUR

EUR 0.02 ordinary

Purchase

1

36.5563 EUR

EUR 0.02 ordinary

Sale

30,846

36.7249 EUR

EUR 0.02 ordinary

Sale

17,376

36.7664 EUR

EUR 0.02 ordinary

Sale

10,683

36.7200 EUR

EUR 0.02 ordinary

Sale

5,486

36.8923 EUR

EUR 0.02 ordinary

Sale

4,892

36.6767 EUR

EUR 0.02 ordinary

Sale

4,458

36.9008 EUR

EUR 0.02 ordinary

Sale

2,671

36.7705 EUR

EUR 0.02 ordinary

Sale

2,223

36.7762 EUR

EUR 0.02 ordinary

Sale

2,115

36.7702 EUR

EUR 0.02 ordinary

Sale

2,106

36.7182 EUR

EUR 0.02 ordinary

Sale

1,738

36.7411 EUR

EUR 0.02 ordinary

Sale

1,047

36.7879 EUR

EUR 0.02 ordinary

Sale

1,028

36.8557 EUR

EUR 0.02 ordinary

Sale

1,009

36.7394 EUR

EUR 0.02 ordinary

Sale

718

36.7600 EUR

EUR 0.02 ordinary

Sale

684

36.6830 EUR

EUR 0.02 ordinary

Sale

679

36.7796 EUR

EUR 0.02 ordinary

Sale

614

36.7800 EUR

EUR 0.02 ordinary

Sale

598

36.9706 EUR

EUR 0.02 ordinary

Sale

591

36.5606 EUR

EUR 0.02 ordinary

Sale

571

36.6592 EUR

EUR 0.02 ordinary

Sale

501

36.8653 EUR

EUR 0.02 ordinary

Sale

417

36.8600 EUR

EUR 0.02 ordinary

Sale

401

36.8318 EUR

EUR 0.02 ordinary

Sale

390

36.6720 EUR

EUR 0.02 ordinary

Sale

305

36.7966 EUR

EUR 0.02 ordinary

Sale

288

36.8230 EUR

EUR 0.02 ordinary

Sale

288

36.9617 EUR

EUR 0.02 ordinary

Sale

274

36.8000 EUR

EUR 0.02 ordinary

Sale

223

36.9154 EUR

EUR 0.02 ordinary

Sale

213

36.7261 EUR

EUR 0.02 ordinary

Sale

210

36.8400 EUR

EUR 0.02 ordinary

Sale

186

37.0500 EUR

EUR 0.02 ordinary

Sale

175

36.8520 EUR

EUR 0.02 ordinary

Sale

172

36.7951 EUR

EUR 0.02 ordinary

Sale

134

36.9810 EUR

EUR 0.02 ordinary

Sale

119

36.8548 EUR

EUR 0.02 ordinary

Sale

100

37.0000 EUR

EUR 0.02 ordinary

Sale

92

36.9600 EUR

EUR 0.02 ordinary

Sale

88

36.7690 EUR

EUR 0.02 ordinary

Sale

73

36.5800 EUR

EUR 0.02 ordinary

Sale

71

36.5600 EUR

EUR 0.02 ordinary

Sale

58

36.7193 EUR

EUR 0.02 ordinary

Sale

50

36.6400 EUR

EUR 0.02 ordinary

Sale

50

36.4200 EUR

EUR 0.02 ordinary

Sale

50

36.8296 EUR

EUR 0.02 ordinary

Sale

48

36.6600 EUR

EUR 0.02 ordinary

Sale

46

36.4600 EUR

EUR 0.02 ordinary

Sale

45

36.4800 EUR

EUR 0.02 ordinary

Sale

45

36.8800 EUR

EUR 0.02 ordinary

Sale

34

36.8339 EUR

EUR 0.02 ordinary

Sale

27

36.7192 EUR

EUR 0.02 ordinary

Sale

25

36.6000 EUR

EUR 0.02 ordinary

Sale

25

36.4000 EUR

EUR 0.02 ordinary

Sale

25

36.5400 EUR

EUR 0.02 ordinary

Sale

24

36.6200 EUR

EUR 0.02 ordinary

Sale

23

36.6800 EUR

EUR 0.02 ordinary

Sale

23

36.3800 EUR

EUR 0.02 ordinary

Sale

21

37.0400 EUR

EUR 0.02 ordinary

Sale

18

36.7733 EUR

EUR 0.02 ordinary

Sale

11

36.9355 EUR

EUR 0.02 ordinary

Sale

3

36.5933 EUR

EUR 0.02 ordinary

Sale

1

36.6036 EUR

EUR 0.02 ordinary

Sale

1

36.6136 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

Increasing Short

87

36.8965 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

679

36.7796 EUR

EUR 0.02 ordinary

CFD

Increasing Long

271

36.7788 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

16,664

36.7225 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

50

36.8296 EUR

EUR 0.02 ordinary

CFD

Increasing Short

866

36.6293 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

11,294

36.7200 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

400

36.6188 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

455

36.8907 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

3

36.5933 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

511

36.8249 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

390

36.6720 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

100

36.6940 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

100

36.7992 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

684

36.6830 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

83

36.8000 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

58

36.7192 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

300

36.8600 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

27

36.7192 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

100

36.8800 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

2,223

36.7762 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

134

36.9810 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

2,115

36.7702 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

150

36.9200 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

288

36.9616 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:

16 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213