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:

09 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:

809,154

2.26%

121,209

0.34%

(2)

Cash-settled derivatives:

128,689

0.36%

802,929

2.25%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

937,843

2.62%

924,138

2.58%

(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

12,722

34.8800 EUR

EUR 0.02 ordinary

Purchase

7,758

35.4244 EUR

EUR 0.02 ordinary

Purchase

6,437

35.3795 EUR

EUR 0.02 ordinary

Purchase

3,917

35.2452 EUR

EUR 0.02 ordinary

Purchase

3,010

34.9375 EUR

EUR 0.02 ordinary

Purchase

2,563

35.4073 EUR

EUR 0.02 ordinary

Purchase

2,492

35.3587 EUR

EUR 0.02 ordinary

Purchase

2,070

34.9774 EUR

EUR 0.02 ordinary

Purchase

1,552

35.3849 EUR

EUR 0.02 ordinary

Purchase

1,169

35.2805 EUR

EUR 0.02 ordinary

Purchase

880

35.1088 EUR

EUR 0.02 ordinary

Purchase

857

35.1588 EUR

EUR 0.02 ordinary

Purchase

641

34.8730 EUR

EUR 0.02 ordinary

Purchase

584

35.7800 EUR

EUR 0.02 ordinary

Purchase

482

35.5156 EUR

EUR 0.02 ordinary

Purchase

476

35.0000 EUR

EUR 0.02 ordinary

Purchase

234

35.6000 EUR

EUR 0.02 ordinary

Purchase

188

35.6248 EUR

EUR 0.02 ordinary

Purchase

188

35.6600 EUR

EUR 0.02 ordinary

Purchase

180

35.1200 EUR

EUR 0.02 ordinary

Purchase

180

34.9414 EUR

EUR 0.02 ordinary

Purchase

152

35.4250 EUR

EUR 0.02 ordinary

Purchase

149

35.3800 EUR

EUR 0.02 ordinary

Purchase

136

35.4000 EUR

EUR 0.02 ordinary

Purchase

60

35.4506 EUR

EUR 0.02 ordinary

Purchase

49

35.6400 EUR

EUR 0.02 ordinary

Purchase

45

35.3814 EUR

EUR 0.02 ordinary

Purchase

45

35.5880 EUR

EUR 0.02 ordinary

Purchase

37

34.8000 EUR

EUR 0.02 ordinary

Purchase

32

35.1189 EUR

EUR 0.02 ordinary

Purchase

32

35.5700 EUR

EUR 0.02 ordinary

Purchase

23

35.7600 EUR

EUR 0.02 ordinary

Purchase

22

35.5800 EUR

EUR 0.02 ordinary

Purchase

22

35.9000 EUR

EUR 0.02 ordinary

Purchase

22

35.7400 EUR

EUR 0.02 ordinary

Purchase

21

35.8400 EUR

EUR 0.02 ordinary

Purchase

20

35.6800 EUR

EUR 0.02 ordinary

Purchase

20

35.4200 EUR

EUR 0.02 ordinary

Purchase

19

35.7000 EUR

EUR 0.02 ordinary

Purchase

19

35.9400 EUR

EUR 0.02 ordinary

Purchase

17

35.5000 EUR

EUR 0.02 ordinary

Purchase

13

35.6200 EUR

EUR 0.02 ordinary

Purchase

8

35.5600 EUR

EUR 0.02 ordinary

Purchase

7

35.0800 EUR

EUR 0.02 ordinary

Purchase

2

35.7200 EUR

EUR 0.02 ordinary

Purchase

2

35.8800 EUR

EUR 0.02 ordinary

Purchase

1

35.6064 EUR

EUR 0.02 ordinary

Sale

22,395

35.4316 EUR

EUR 0.02 ordinary

Sale

15,516

35.4244 EUR

EUR 0.02 ordinary

Sale

12,521

34.8800 EUR

EUR 0.02 ordinary

Sale

3,917

35.2452 EUR

EUR 0.02 ordinary

Sale

2,338

35.2805 EUR

EUR 0.02 ordinary

Sale

1,964

35.3041 EUR

EUR 0.02 ordinary

Sale

1,953

35.1859 EUR

EUR 0.02 ordinary

Sale

1,288

34.8747 EUR

EUR 0.02 ordinary

Sale

565

35.2424 EUR

EUR 0.02 ordinary

Sale

507

35.6347 EUR

EUR 0.02 ordinary

Sale

360

34.9414 EUR

EUR 0.02 ordinary

Sale

326

34.9328 EUR

EUR 0.02 ordinary

Sale

305

35.4784 EUR

EUR 0.02 ordinary

Sale

298

35.3800 EUR

EUR 0.02 ordinary

Sale

292

35.7800 EUR

EUR 0.02 ordinary

Sale

292

35.9200 EUR

EUR 0.02 ordinary

Sale

238

35.0000 EUR

EUR 0.02 ordinary

Sale

207

35.3400 EUR

EUR 0.02 ordinary

Sale

193

35.5123 EUR

EUR 0.02 ordinary

Sale

177

35.5798 EUR

EUR 0.02 ordinary

Sale

150

35.4000 EUR

EUR 0.02 ordinary

Sale

148

35.5800 EUR

EUR 0.02 ordinary

Sale

134

35.6000 EUR

EUR 0.02 ordinary

Sale

132

35.4200 EUR

EUR 0.02 ordinary

Sale

109

35.7000 EUR

EUR 0.02 ordinary

Sale

104

35.0600 EUR

EUR 0.02 ordinary

Sale

100

34.9640 EUR

EUR 0.02 ordinary

Sale

94

35.6600 EUR

EUR 0.02 ordinary

Sale

94

35.6248 EUR

EUR 0.02 ordinary

Sale

94

35.7386 EUR

EUR 0.02 ordinary

Sale

88

34.9600 EUR

EUR 0.02 ordinary

Sale

74

35.1200 EUR

EUR 0.02 ordinary

Sale

69

34.9484 EUR

EUR 0.02 ordinary

Sale

69

35.7128 EUR

EUR 0.02 ordinary

Sale

49

35.6400 EUR

EUR 0.02 ordinary

Sale

47

35.5672 EUR

EUR 0.02 ordinary

Sale

44

35.7600 EUR

EUR 0.02 ordinary

Sale

37

34.8010 EUR

EUR 0.02 ordinary

Sale

22

35.9000 EUR

EUR 0.02 ordinary

Sale

22

35.7400 EUR

EUR 0.02 ordinary

Sale

21

35.8400 EUR

EUR 0.02 ordinary

Sale

20

35.6800 EUR

EUR 0.02 ordinary

Sale

19

35.9400 EUR

EUR 0.02 ordinary

Sale

17

35.5000 EUR

EUR 0.02 ordinary

Sale

13

35.6200 EUR

EUR 0.02 ordinary

Sale

12

35.5400 EUR

EUR 0.02 ordinary

Sale

8

35.5600 EUR

EUR 0.02 ordinary

Sale

7

35.0800 EUR

EUR 0.02 ordinary

Sale

2

35.7200 EUR

EUR 0.02 ordinary

Sale

2

35.8800 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

326

34.9328 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

32

35.0900 EUR

EUR 0.02 ordinary

CFD

Decreasing Long

545

34.9801 EUR

EUR 0.02 ordinary

CFD

Increasing Short

37

35.6643 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

9,107

35.3936 EUR

EUR 0.02 ordinary

CFD

Increasing Short

60

35.4506 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

45

35.3815 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

1,288

34.8747 EUR

EUR 0.02 ordinary

SWAP

Opening Short

3,010

34.9375 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

47

35.5672 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

6,437

35.3795 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

149

35.3800 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,563

35.4073 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

88

35.7000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

94

35.6600 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

100

35.6000 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

195

35.6269 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

207

35.3400 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

32

35.5700 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

880

35.1088 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

22,395

35.4316 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,070

34.9774 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:

10 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213