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:

03 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:

879,010

2.46%

118,460

0.33%

(2)

Cash-settled derivatives:

127,081

0.36%

873,637

2.44%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

1,006,091

2.81%

992,097

2.77%

(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

16,703

39.9667 EUR

EUR 0.02 ordinary

Purchase

16,647

39.8600 EUR

EUR 0.02 ordinary

Purchase

5,133

39.8779 EUR

EUR 0.02 ordinary

Purchase

4,666

39.9255 EUR

EUR 0.02 ordinary

Purchase

4,218

39.7432 EUR

EUR 0.02 ordinary

Purchase

2,910

39.8613 EUR

EUR 0.02 ordinary

Purchase

1,640

39.5258 EUR

EUR 0.02 ordinary

Purchase

1,318

40.0605 EUR

EUR 0.02 ordinary

Purchase

1,150

39.9468 EUR

EUR 0.02 ordinary

Purchase

1,055

39.8520 EUR

EUR 0.02 ordinary

Purchase

967

39.9219 EUR

EUR 0.02 ordinary

Purchase

780

39.8021 EUR

EUR 0.02 ordinary

Purchase

562

39.8616 EUR

EUR 0.02 ordinary

Purchase

554

39.6185 EUR

EUR 0.02 ordinary

Purchase

519

39.5151 EUR

EUR 0.02 ordinary

Purchase

498

39.9743 EUR

EUR 0.02 ordinary

Purchase

388

40.2664 EUR

EUR 0.02 ordinary

Purchase

371

39.4939 EUR

EUR 0.02 ordinary

Purchase

313

39.8975 EUR

EUR 0.02 ordinary

Purchase

250

39.9214 EUR

EUR 0.02 ordinary

Purchase

147

40.3200 EUR

EUR 0.02 ordinary

Purchase

147

40.0168 EUR

EUR 0.02 ordinary

Purchase

145

40.0024 EUR

EUR 0.02 ordinary

Purchase

99

39.4000 EUR

EUR 0.02 ordinary

Purchase

83

40.2147 EUR

EUR 0.02 ordinary

Purchase

74

40.4000 EUR

EUR 0.02 ordinary

Purchase

54

40.1800 EUR

EUR 0.02 ordinary

Purchase

52

39.8778 EUR

EUR 0.02 ordinary

Purchase

35

39.7039 EUR

EUR 0.02 ordinary

Purchase

24

39.9400 EUR

EUR 0.02 ordinary

Purchase

20

40.2200 EUR

EUR 0.02 ordinary

Purchase

20

39.8607 EUR

EUR 0.02 ordinary

Sale

18,575

39.8600 EUR

EUR 0.02 ordinary

Sale

7,840

39.9971 EUR

EUR 0.02 ordinary

Sale

5,133

39.8779 EUR

EUR 0.02 ordinary

Sale

4,678

39.8796 EUR

EUR 0.02 ordinary

Sale

659

40.0605 EUR

EUR 0.02 ordinary

Sale

572

39.8398 EUR

EUR 0.02 ordinary

Sale

470

39.4741 EUR

EUR 0.02 ordinary

Sale

455

39.8600 EUR

EUR 0.02 ordinary

Sale

362

39.9509 EUR

EUR 0.02 ordinary

Sale

300

39.8987 EUR

EUR 0.02 ordinary

Sale

294

40.3200 EUR

EUR 0.02 ordinary

Sale

290

40.0024 EUR

EUR 0.02 ordinary

Sale

238

40.3400 EUR

EUR 0.02 ordinary

Sale

194

40.2664 EUR

EUR 0.02 ordinary

Sale

186

39.9200 EUR

EUR 0.02 ordinary

Sale

161

40.2150 EUR

EUR 0.02 ordinary

Sale

146

40.2670 EUR

EUR 0.02 ordinary

Sale

144

40.1200 EUR

EUR 0.02 ordinary

Sale

105

40.6200 EUR

EUR 0.02 ordinary

Sale

38

40.6300 EUR

EUR 0.02 ordinary

Sale

37

40.4000 EUR

EUR 0.02 ordinary

Sale

27

40.1800 EUR

EUR 0.02 ordinary

Sale

14

40.2500 EUR

EUR 0.02 ordinary

Sale

13

39.8707 EUR

EUR 0.02 ordinary

Sale

12

39.9400 EUR

EUR 0.02 ordinary

Sale

10

40.2200 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 Long

108

39.8600 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

13

39.8707 EUR

EUR 0.02 ordinary

CFD

Decreasing Long

315

39.8612 EUR

EUR 0.02 ordinary

CFD

Increasing Short

381

40.2422 EUR

EUR 0.02 ordinary

CFD

Increasing Short

1,640

39.5258 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

5

39.8607 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,910

39.8613 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

273

39.9582 EUR

EUR 0.02 ordinary

CFD

Closing Short

1,726

39.8600 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,150

39.9468 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

16,703

39.9667 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

28

40.4400 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

20

39.8607 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

562

39.8615 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

5

39.8600 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

35

39.7039 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

194

40.2664 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

145

40.0024 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

947

39.5257 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

251

40.4146 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

967

39.9219 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

863

39.8417 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

4,218

39.7432 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

7,840

39.9971 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:

04 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213