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:

24 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:

847,092

2.37%

109,654

0.31%

(2)

Cash-settled derivatives:

121,929

0.34%

845,474

2.36%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

969,021

2.71%

955,128

2.67%

(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

8,312

34.5018 EUR

EUR 0.02 ordinary

Purchase

7,600

34.4597 EUR

EUR 0.02 ordinary

Purchase

6,035

34.3717 EUR

EUR 0.02 ordinary

Purchase

4,020

34.5918 EUR

EUR 0.02 ordinary

Purchase

3,309

34.5308 EUR

EUR 0.02 ordinary

Purchase

3,154

34.7000 EUR

EUR 0.02 ordinary

Purchase

2,113

34.7297 EUR

EUR 0.02 ordinary

Purchase

2,044

34.7489 EUR

EUR 0.02 ordinary

Purchase

1,535

34.7020 EUR

EUR 0.02 ordinary

Purchase

1,395

34.6828 EUR

EUR 0.02 ordinary

Purchase

664

34.3646 EUR

EUR 0.02 ordinary

Purchase

500

34.4950 EUR

EUR 0.02 ordinary

Purchase

211

34.8400 EUR

EUR 0.02 ordinary

Purchase

203

35.0211 EUR

EUR 0.02 ordinary

Purchase

194

34.7475 EUR

EUR 0.02 ordinary

Purchase

182

34.3578 EUR

EUR 0.02 ordinary

Purchase

170

34.6880 EUR

EUR 0.02 ordinary

Purchase

136

34.5189 EUR

EUR 0.02 ordinary

Purchase

91

35.1000 EUR

EUR 0.02 ordinary

Purchase

81

34.6930 EUR

EUR 0.02 ordinary

Purchase

77

34.3600 EUR

EUR 0.02 ordinary

Purchase

67

35.0446 EUR

EUR 0.02 ordinary

Purchase

62

35.0600 EUR

EUR 0.02 ordinary

Purchase

60

34.3400 EUR

EUR 0.02 ordinary

Purchase

49

34.9200 EUR

EUR 0.02 ordinary

Purchase

48

34.9800 EUR

EUR 0.02 ordinary

Purchase

48

34.9000 EUR

EUR 0.02 ordinary

Purchase

39

35.0000 EUR

EUR 0.02 ordinary

Purchase

22

34.2000 EUR

EUR 0.02 ordinary

Purchase

17

34.4200 EUR

EUR 0.02 ordinary

Purchase

2

34.8800 EUR

EUR 0.02 ordinary

Purchase

2

35.0800 EUR

EUR 0.02 ordinary

Purchase

2

34.3700 EUR

EUR 0.02 ordinary

Purchase

1

34.2200 EUR

EUR 0.02 ordinary

Purchase

1

35.2400 EUR

EUR 0.02 ordinary

Purchase

1

35.0300 EUR

EUR 0.02 ordinary

Purchase

1

34.8200 EUR

EUR 0.02 ordinary

Sale

7,767

34.6336 EUR

EUR 0.02 ordinary

Sale

6,618

34.5308 EUR

EUR 0.02 ordinary

Sale

6,933

34.7000 EUR

EUR 0.02 ordinary

Sale

4,020

34.5918 EUR

EUR 0.02 ordinary

Sale

2,879

34.4519 EUR

EUR 0.02 ordinary

Sale

2,264

34.5518 EUR

EUR 0.02 ordinary

Sale

1,053

34.6055 EUR

EUR 0.02 ordinary

Sale

505

34.7006 EUR

EUR 0.02 ordinary

Sale

421

34.8400 EUR

EUR 0.02 ordinary

Sale

406

35.0211 EUR

EUR 0.02 ordinary

Sale

332

34.3646 EUR

EUR 0.02 ordinary

Sale

258

34.5327 EUR

EUR 0.02 ordinary

Sale

187

35.3584 EUR

EUR 0.02 ordinary

Sale

119

34.5836 EUR

EUR 0.02 ordinary

Sale

91

35.1000 EUR

EUR 0.02 ordinary

Sale

91

34.3578 EUR

EUR 0.02 ordinary

Sale

76

34.9947 EUR

EUR 0.02 ordinary

Sale

74

34.3859 EUR

EUR 0.02 ordinary

Sale

68

34.9225 EUR

EUR 0.02 ordinary

Sale

68

34.7200 EUR

EUR 0.02 ordinary

Sale

60

34.3400 EUR

EUR 0.02 ordinary

Sale

49

34.9200 EUR

EUR 0.02 ordinary

Sale

48

34.9000 EUR

EUR 0.02 ordinary

Sale

48

34.9800 EUR

EUR 0.02 ordinary

Sale

43

35.0600 EUR

EUR 0.02 ordinary

Sale

39

35.0000 EUR

EUR 0.02 ordinary

Sale

22

34.2000 EUR

EUR 0.02 ordinary

Sale

17

34.4200 EUR

EUR 0.02 ordinary

Sale

14

34.7600 EUR

EUR 0.02 ordinary

Sale

4

35.0800 EUR

EUR 0.02 ordinary

Sale

2

34.8800 EUR

EUR 0.02 ordinary

Sale

2

35.2400 EUR

EUR 0.02 ordinary

Sale

1

34.8200 EUR

EUR 0.02 ordinary

Sale

1

35.0300 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

74

34.3859 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

5,626

35.7294 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

1,795

34.6989 EUR

EUR 0.02 ordinary

CFD

Closing Short

426

34.8169 EUR

EUR 0.02 ordinary

CFD

Increasing Short

19

35.0626 EUR

EUR 0.02 ordinary

CFD

Opening Short

332

34.3646 EUR

EUR 0.02 ordinary

CFD

Increasing Short

136

34.5189 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,535

34.7020 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

7,600

34.4597 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

258

34.5327 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

3,481

35.4766 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

1,724

34.3895 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

1

35.0300 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,044

34.7489 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

1,336

34.5060 EUR

EUR 0.02 ordinary

CFD

Increasing Short

1

34.2200 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

3,579

34.7000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

534

34.8582 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

119

34.5836 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

169

34.7772 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

203

35.0211 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

82

34.8947 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1

34.7000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

3,131

34.2902 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

91

34.3578 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,283

34.7265 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

255

35.1881 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:

25 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213