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:

25 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:

846,111

2.37%

109,634

0.31%

(2)

Cash-settled derivatives:

121,929

0.34%

841,713

2.35%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

968,040

2.71%

951,347

2.66%

(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

11,000

33.1538 EUR

EUR 0.02 ordinary

Purchase

7,540

33.4421 EUR

EUR 0.02 ordinary

Purchase

5,302

33.4298 EUR

EUR 0.02 ordinary

Purchase

5,006

33.4200 EUR

EUR 0.02 ordinary

Purchase

4,088

33.3358 EUR

EUR 0.02 ordinary

Purchase

1,773

33.4220 EUR

EUR 0.02 ordinary

Purchase

1,358

33.4686 EUR

EUR 0.02 ordinary

Purchase

1,264

33.2086 EUR

EUR 0.02 ordinary

Purchase

1,089

33.2496 EUR

EUR 0.02 ordinary

Purchase

1,012

33.8315 EUR

EUR 0.02 ordinary

Purchase

1,011

33.4793 EUR

EUR 0.02 ordinary

Purchase

744

33.8521 EUR

EUR 0.02 ordinary

Purchase

462

33.8958 EUR

EUR 0.02 ordinary

Purchase

352

33.9259 EUR

EUR 0.02 ordinary

Purchase

298

33.6454 EUR

EUR 0.02 ordinary

Purchase

290

33.4255 EUR

EUR 0.02 ordinary

Purchase

246

33.4745 EUR

EUR 0.02 ordinary

Purchase

192

33.4000 EUR

EUR 0.02 ordinary

Purchase

174

33.7800 EUR

EUR 0.02 ordinary

Purchase

162

33.5776 EUR

EUR 0.02 ordinary

Purchase

156

33.4400 EUR

EUR 0.02 ordinary

Purchase

63

33.1500 EUR

EUR 0.02 ordinary

Purchase

54

33.3133 EUR

EUR 0.02 ordinary

Purchase

50

33.1000 EUR

EUR 0.02 ordinary

Purchase

50

33.9000 EUR

EUR 0.02 ordinary

Purchase

27

33.8200 EUR

EUR 0.02 ordinary

Purchase

16

33.7400 EUR

EUR 0.02 ordinary

Purchase

6

33.6000 EUR

EUR 0.02 ordinary

Purchase

3

33.8400 EUR

EUR 0.02 ordinary

Sale

11,912

34.7000 EUR

EUR 0.02 ordinary

Sale

8,179

33.6487 EUR

EUR 0.02 ordinary

Sale

6,963

33.4200 EUR

EUR 0.02 ordinary

Sale

2,313

33.7200 EUR

EUR 0.02 ordinary

Sale

2,044

33.3358 EUR

EUR 0.02 ordinary

Sale

2,036

33.1101 EUR

EUR 0.02 ordinary

Sale

2,015

33.1604 EUR

EUR 0.02 ordinary

Sale

1,318

33.5464 EUR

EUR 0.02 ordinary

Sale

1,156

33.4810 EUR

EUR 0.02 ordinary

Sale

1,050

33.1569 EUR

EUR 0.02 ordinary

Sale

734

33.1928 EUR

EUR 0.02 ordinary

Sale

623

33.3926 EUR

EUR 0.02 ordinary

Sale

580

33.4255 EUR

EUR 0.02 ordinary

Sale

506

33.8315 EUR

EUR 0.02 ordinary

Sale

459

33.8384 EUR

EUR 0.02 ordinary

Sale

437

33.1181 EUR

EUR 0.02 ordinary

Sale

342

33.1000 EUR

EUR 0.02 ordinary

Sale

325

33.1700 EUR

EUR 0.02 ordinary

Sale

257

33.1228 EUR

EUR 0.02 ordinary

Sale

249

33.5257 EUR

EUR 0.02 ordinary

Sale

231

33.8958 EUR

EUR 0.02 ordinary

Sale

176

33.9259 EUR

EUR 0.02 ordinary

Sale

132

33.1800 EUR

EUR 0.02 ordinary

Sale

118

33.1600 EUR

EUR 0.02 ordinary

Sale

99

33.4060 EUR

EUR 0.02 ordinary

Sale

91

33.4623 EUR

EUR 0.02 ordinary

Sale

78

33.4400 EUR

EUR 0.02 ordinary

Sale

63

33.1500 EUR

EUR 0.02 ordinary

Sale

60

33.1400 EUR

EUR 0.02 ordinary

Sale

56

33.6861 EUR

EUR 0.02 ordinary

Sale

35

33.4531 EUR

EUR 0.02 ordinary

Sale

27

33.8200 EUR

EUR 0.02 ordinary

Sale

25

33.7400 EUR

EUR 0.02 ordinary

Sale

25

33.9000 EUR

EUR 0.02 ordinary

Sale

21

33.9914 EUR

EUR 0.02 ordinary

Sale

14

33.5628 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

Closing Short

11,912

34.7000 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

91

33.4623 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

8,312

34.5018 EUR

EUR 0.02 ordinary

CFD

Increasing Short

432

33.9110 EUR

EUR 0.02 ordinary

CFD

Increasing Short

2,044

33.3358 EUR

EUR 0.02 ordinary

CFD

Increasing Short

3

33.8400 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

239

34.0735 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

4,449

33.4298 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

853

33.4298 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

7,767

34.6336 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

63

33.1500 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

49

33.7020 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

185

33.4286 EUR

EUR 0.02 ordinary

CFD

Closing Short

2,313

33.7200 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

239

33.7870 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

14

33.5628 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

120

33.4811 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

244

33.4750 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,773

33.4220 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

280

33.6245 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

2,420

33.4200 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

214

33.3909 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

52

33.5469 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

929

33.2207 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

50

33.1000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2

33.4200 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

78

33.4400 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

77

33.7693 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,562

33.2919 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

7,540

33.4421 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

8,179

33.6487 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:

26 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213