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:

01 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:

851,161

2.38%

118,246

0.33%

(2)

Cash-settled derivatives:

127,213

0.36%

845,558

2.36%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

978,374

2.74%

963,804

2.70%

(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

4,214

41.3600 EUR

EUR 0.02 ordinary

Purchase

3,199

41.6300 EUR

EUR 0.02 ordinary

Purchase

2,491

41.2999 EUR

EUR 0.02 ordinary

Purchase

1,553

41.4111 EUR

EUR 0.02 ordinary

Purchase

1,364

41.7534 EUR

EUR 0.02 ordinary

Purchase

1,218

41.1165 EUR

EUR 0.02 ordinary

Purchase

487

41.1957 EUR

EUR 0.02 ordinary

Purchase

305

40.8193 EUR

EUR 0.02 ordinary

Purchase

214

41.5888 EUR

EUR 0.02 ordinary

Purchase

206

41.1416 EUR

EUR 0.02 ordinary

Purchase

183

41.0782 EUR

EUR 0.02 ordinary

Purchase

97

42.0200 EUR

EUR 0.02 ordinary

Purchase

89

41.1400 EUR

EUR 0.02 ordinary

Purchase

77

41.3626 EUR

EUR 0.02 ordinary

Purchase

77

41.6349 EUR

EUR 0.02 ordinary

Purchase

76

41.1216 EUR

EUR 0.02 ordinary

Purchase

55

41.2190 EUR

EUR 0.02 ordinary

Purchase

40

41.7147 EUR

EUR 0.02 ordinary

Purchase

36

41.5866 EUR

EUR 0.02 ordinary

Purchase

34

41.2805 EUR

EUR 0.02 ordinary

Purchase

20

41.0490 EUR

EUR 0.02 ordinary

Purchase

20

41.1270 EUR

EUR 0.02 ordinary

Purchase

12

41.4183 EUR

EUR 0.02 ordinary

Purchase

11

41.8900 EUR

EUR 0.02 ordinary

Purchase

9

41.3255 EUR

EUR 0.02 ordinary

Purchase

8

41.2225 EUR

EUR 0.02 ordinary

Purchase

2

41.3000 EUR

EUR 0.02 ordinary

Purchase

1

41.5958 EUR

EUR 0.02 ordinary

Sale

4,849

41.4458 EUR

EUR 0.02 ordinary

Sale

4,215

41.3600 EUR

EUR 0.02 ordinary

Sale

1,512

41.3985 EUR

EUR 0.02 ordinary

Sale

305

40.8200 EUR

EUR 0.02 ordinary

Sale

292

41.2826 EUR

EUR 0.02 ordinary

Sale

280

41.8763 EUR

EUR 0.02 ordinary

Sale

266

42.2000 EUR

EUR 0.02 ordinary

Sale

196

41.2127 EUR

EUR 0.02 ordinary

Sale

140

41.6571 EUR

EUR 0.02 ordinary

Sale

138

41.4101 EUR

EUR 0.02 ordinary

Sale

116

41.5853 EUR

EUR 0.02 ordinary

Sale

96

41.1260 EUR

EUR 0.02 ordinary

Sale

41

41.1192 EUR

EUR 0.02 ordinary

Sale

35

41.2937 EUR

EUR 0.02 ordinary

Sale

14

41.2300 EUR

EUR 0.02 ordinary

Sale

8

41.0191 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

183

41.0782 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

39

41.5446 EUR

EUR 0.02 ordinary

CFD

Increasing Short

4,577

41.6694 EUR

EUR 0.02 ordinary

CFD

Opening Short

11

41.8900 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

8

41.2225 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

117

41.6622 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

140

41.6571 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

97

42.0200 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

14

41.2300 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

418

41.7223 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

4,849

41.4458 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,491

41.2999 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,218

41.1165 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:

02 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213