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:

04 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:

873,475

2.44%

118,114

0.33%

(2)

Cash-settled derivatives:

123,731

0.35%

865,073

2.42%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

997,206

2.79%

983,187

2.75%

(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

12,638

38.0000 EUR

EUR 0.02 ordinary

Purchase

9,700

38.5242 EUR

EUR 0.02 ordinary

Purchase

4,606

38.0934 EUR

EUR 0.02 ordinary

Purchase

3,248

38.2842 EUR

EUR 0.02 ordinary

Purchase

1,466

37.8438 EUR

EUR 0.02 ordinary

Purchase

1,344

37.9572 EUR

EUR 0.02 ordinary

Purchase

963

37.9955 EUR

EUR 0.02 ordinary

Purchase

816

38.1618 EUR

EUR 0.02 ordinary

Purchase

565

37.8306 EUR

EUR 0.02 ordinary

Purchase

336

37.9200 EUR

EUR 0.02 ordinary

Purchase

271

38.1304 EUR

EUR 0.02 ordinary

Purchase

237

37.9257 EUR

EUR 0.02 ordinary

Purchase

189

38.0200 EUR

EUR 0.02 ordinary

Purchase

180

38.2208 EUR

EUR 0.02 ordinary

Purchase

172

38.2960 EUR

EUR 0.02 ordinary

Purchase

161

37.9600 EUR

EUR 0.02 ordinary

Purchase

149

39.0876 EUR

EUR 0.02 ordinary

Purchase

140

38.8114 EUR

EUR 0.02 ordinary

Purchase

122

38.4502 EUR

EUR 0.02 ordinary

Purchase

119

39.1394 EUR

EUR 0.02 ordinary

Purchase

68

38.4725 EUR

EUR 0.02 ordinary

Purchase

61

38.4288 EUR

EUR 0.02 ordinary

Purchase

24

37.9304 EUR

EUR 0.02 ordinary

Purchase

17

38.7300 EUR

EUR 0.02 ordinary

Purchase

6

37.9333 EUR

EUR 0.02 ordinary

Sale

20,829

38.1495 EUR

EUR 0.02 ordinary

Sale

12,401

38.0000 EUR

EUR 0.02 ordinary

Sale

2,303

38.0934 EUR

EUR 0.02 ordinary

Sale

1,624

38.2842 EUR

EUR 0.02 ordinary

Sale

910

38.3800 EUR

EUR 0.02 ordinary

Sale

733

37.8438 EUR

EUR 0.02 ordinary

Sale

672

37.9200 EUR

EUR 0.02 ordinary

Sale

540

37.8274 EUR

EUR 0.02 ordinary

Sale

424

38.3442 EUR

EUR 0.02 ordinary

Sale

397

38.0076 EUR

EUR 0.02 ordinary

Sale

266

38.4903 EUR

EUR 0.02 ordinary

Sale

253

38.1288 EUR

EUR 0.02 ordinary

Sale

249

37.9400 EUR

EUR 0.02 ordinary

Sale

238

39.1400 EUR

EUR 0.02 ordinary

Sale

179

38.0347 EUR

EUR 0.02 ordinary

Sale

161

38.5222 EUR

EUR 0.02 ordinary

Sale

92

38.3165 EUR

EUR 0.02 ordinary

Sale

86

38.3107 EUR

EUR 0.02 ordinary

Sale

86

38.2960 EUR

EUR 0.02 ordinary

Sale

84

38.0200 EUR

EUR 0.02 ordinary

Sale

70

38.8114 EUR

EUR 0.02 ordinary

Sale

60

38.8800 EUR

EUR 0.02 ordinary

Sale

51

38.6766 EUR

EUR 0.02 ordinary

Sale

49

38.1451 EUR

EUR 0.02 ordinary

Sale

21

38.0205 EUR

EUR 0.02 ordinary

Sale

6

38.3400 EUR

EUR 0.02 ordinary

Sale

3

37.9333 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 Long

84

38.0205 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

179

38.0347 EUR

EUR 0.02 ordinary

CFD

Decreasing Long

3,005

37.9571 EUR

EUR 0.02 ordinary

CFD

Increasing Short

268

38.8063 EUR

EUR 0.02 ordinary

CFD

Opening Long

6

38.3400 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

184

38.0000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

816

38.1618 EUR

EUR 0.02 ordinary

SWAP

Closing Long

24

37.9305 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

100

38.4162 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

336

37.9169 EUR

EUR 0.02 ordinary

CFD

Closing Long

6

38.4288 EUR

EUR 0.02 ordinary

CFD

Opening Short

55

38.4288 EUR

EUR 0.02 ordinary

SWAP

Closing Long

53

38.0000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

85

38.5240 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

70

38.8114 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

352

38.4464 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,524

37.9883 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

963

37.9955 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

249

37.9400 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

9,700

38.5242 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

20,829

38.1495 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:

05 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213