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:

18 May 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:

787,607

2.20%

128,755

0.36%

(2)

Cash-settled derivatives:

139,581

0.39%

782,275

2.19%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

927,188

2.59%

911,030

2.55%

(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

10,197

37.8153 EUR

EUR 0.02 ordinary

Purchase

5,273

37.7272 EUR

EUR 0.02 ordinary

Purchase

1,601

37.3400 EUR

EUR 0.02 ordinary

Purchase

1,200

37.7966 EUR

EUR 0.02 ordinary

Purchase

790

37.7602 EUR

EUR 0.02 ordinary

Purchase

767

37.7132 EUR

EUR 0.02 ordinary

Purchase

478

37.7170 EUR

EUR 0.02 ordinary

Purchase

361

37.8227 EUR

EUR 0.02 ordinary

Purchase

348

37.3794 EUR

EUR 0.02 ordinary

Purchase

336

37.2800 EUR

EUR 0.02 ordinary

Purchase

299

37.5977 EUR

EUR 0.02 ordinary

Purchase

254

37.7883 EUR

EUR 0.02 ordinary

Purchase

169

37.5644 EUR

EUR 0.02 ordinary

Purchase

92

37.9600 EUR

EUR 0.02 ordinary

Purchase

57

37.4908 EUR

EUR 0.02 ordinary

Purchase

38

37.6731 EUR

EUR 0.02 ordinary

Purchase

30

37.8760 EUR

EUR 0.02 ordinary

Purchase

19

37.7642 EUR

EUR 0.02 ordinary

Sale

153,702

37.7600 EUR

EUR 0.02 ordinary

Sale

14,023

37.7071 EUR

EUR 0.02 ordinary

Sale

3,610

37.7414 EUR

EUR 0.02 ordinary

Sale

1,254

38.2000 EUR

EUR 0.02 ordinary

Sale

845

37.3400 EUR

EUR 0.02 ordinary

Sale

744

37.7616 EUR

EUR 0.02 ordinary

Sale

616

37.6747 EUR

EUR 0.02 ordinary

Sale

496

37.8631 EUR

EUR 0.02 ordinary

Sale

468

37.7750 EUR

EUR 0.02 ordinary

Sale

361

37.8250 EUR

EUR 0.02 ordinary

Sale

348

37.3794 EUR

EUR 0.02 ordinary

Sale

311

37.7174 EUR

EUR 0.02 ordinary

Sale

243

37.8400 EUR

EUR 0.02 ordinary

Sale

198

38.0867 EUR

EUR 0.02 ordinary

Sale

127

37.9600 EUR

EUR 0.02 ordinary

Sale

82

37.5900 EUR

EUR 0.02 ordinary

Sale

78

37.7815 EUR

EUR 0.02 ordinary

Sale

51

37.6600 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

50

37.3400 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

14,023

37.7071 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

2,090

37.7107 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

744

37.7616 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

468

37.7750 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

78

37.7815 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

539

37.8147 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

509

37.8610 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

178

37.8740 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

169

37.5644 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

288

37.6197 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

38

37.6731 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

767

37.7132 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

5,273

37.7272 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

732

37.7417 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

10,197

37.8153 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

103

37.8600 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

153,702

37.7600 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

200

37.9543 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

1,254

38.2000 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

24,300

38.8800 EUR

EUR 0.02 ordinary

CFD

Increasing Short

1,302

37.3256 EUR

EUR 0.02 ordinary

CFD

Increasing Short

25

37.8256 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:

19 May 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213