Form 8.3 - AMG LITHIUM B.V.

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:

15 May 2026

(f)

In addition to the company in 1(c) above, is the discloser making

Yes

Zinnwald Lithium plc

disclosures in respect of any other party to the offer?

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:

955,447

2.67%

117,200

0.33%

(2)

Cash-settled derivatives:

116,034

0.32%

937,969

2.62%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

1,071,481

3.00%

1,055,169

2.95%

(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

13,940

38.9436 EUR

EUR 0.02 ordinary

Purchase

12,191

39.0206 EUR

EUR 0.02 ordinary

Purchase

6,642

38.8800 EUR

EUR 0.02 ordinary

Purchase

5,798

39.1716 EUR

EUR 0.02 ordinary

Purchase

2,699

38.6675 EUR

EUR 0.02 ordinary

Purchase

2,500

38.8742 EUR

EUR 0.02 ordinary

Purchase

2,304

38.7235 EUR

EUR 0.02 ordinary

Purchase

2,275

38.9809 EUR

EUR 0.02 ordinary

Purchase

2,105

38.9244 EUR

EUR 0.02 ordinary

Purchase

2,097

38.7896 EUR

EUR 0.02 ordinary

Purchase

2,078

39.6147 EUR

EUR 0.02 ordinary

Purchase

1,869

39.2536 EUR

EUR 0.02 ordinary

Purchase

1,745

38.7450 EUR

EUR 0.02 ordinary

Purchase

1,613

38.7244 EUR

EUR 0.02 ordinary

Purchase

916

39.8046 EUR

EUR 0.02 ordinary

Purchase

774

39.6448 EUR

EUR 0.02 ordinary

Purchase

747

38.8722 EUR

EUR 0.02 ordinary

Purchase

688

39.7931 EUR

EUR 0.02 ordinary

Purchase

649

38.8161 EUR

EUR 0.02 ordinary

Purchase

584

38.8501 EUR

EUR 0.02 ordinary

Purchase

536

39.6314 EUR

EUR 0.02 ordinary

Purchase

295

38.8500 EUR

EUR 0.02 ordinary

Purchase

277

39.5592 EUR

EUR 0.02 ordinary

Purchase

265

38.8815 EUR

EUR 0.02 ordinary

Purchase

238

39.8989 EUR

EUR 0.02 ordinary

Purchase

183

38.8242 EUR

EUR 0.02 ordinary

Purchase

147

39.0600 EUR

EUR 0.02 ordinary

Purchase

138

38.8776 EUR

EUR 0.02 ordinary

Purchase

127

39.9719 EUR

EUR 0.02 ordinary

Purchase

111

39.4230 EUR

EUR 0.02 ordinary

Purchase

102

39.8800 EUR

EUR 0.02 ordinary

Purchase

99

39.2369 EUR

EUR 0.02 ordinary

Purchase

95

38.7600 EUR

EUR 0.02 ordinary

Purchase

85

38.8000 EUR

EUR 0.02 ordinary

Purchase

62

39.2200 EUR

EUR 0.02 ordinary

Purchase

60

39.8200 EUR

EUR 0.02 ordinary

Purchase

50

39.6750 EUR

EUR 0.02 ordinary

Purchase

44

39.0400 EUR

EUR 0.02 ordinary

Purchase

44

40.2000 EUR

EUR 0.02 ordinary

Purchase

34

39.4800 EUR

EUR 0.02 ordinary

Purchase

2

39.7200 EUR

EUR 0.02 ordinary

Sale

20,656

39.3680 EUR

EUR 0.02 ordinary

Sale

14,468

38.9044 EUR

EUR 0.02 ordinary

Sale

12,191

39.0206 EUR

EUR 0.02 ordinary

Sale

7,732

38.8800 EUR

EUR 0.02 ordinary

Sale

6,690

39.0137 EUR

EUR 0.02 ordinary

Sale

4,210

38.9244 EUR

EUR 0.02 ordinary

Sale

2,280

38.8000 EUR

EUR 0.02 ordinary

Sale

1,738

39.2745 EUR

EUR 0.02 ordinary

Sale

1,482

38.8850 EUR

EUR 0.02 ordinary

Sale

1,063

38.7453 EUR

EUR 0.02 ordinary

Sale

1,039

39.6147 EUR

EUR 0.02 ordinary

Sale

1,009

39.6541 EUR

EUR 0.02 ordinary

Sale

935

39.8507 EUR

EUR 0.02 ordinary

Sale

844

38.8019 EUR

EUR 0.02 ordinary

Sale

783

38.6801 EUR

EUR 0.02 ordinary

Sale

682

38.7485 EUR

EUR 0.02 ordinary

Sale

649

38.8161 EUR

EUR 0.02 ordinary

Sale

586

39.1372 EUR

EUR 0.02 ordinary

Sale

554

39.5592 EUR

EUR 0.02 ordinary

Sale

511

38.6984 EUR

EUR 0.02 ordinary

Sale

458

39.8046 EUR

EUR 0.02 ordinary

Sale

401

38.7851 EUR

EUR 0.02 ordinary

Sale

391

39.2452 EUR

EUR 0.02 ordinary

Sale

387

39.6448 EUR

EUR 0.02 ordinary

Sale

344

39.7931 EUR

EUR 0.02 ordinary

Sale

298

39.0579 EUR

EUR 0.02 ordinary

Sale

295

38.8500 EUR

EUR 0.02 ordinary

Sale

290

38.7892 EUR

EUR 0.02 ordinary

Sale

265

38.5861 EUR

EUR 0.02 ordinary

Sale

254

39.9719 EUR

EUR 0.02 ordinary

Sale

229

39.0400 EUR

EUR 0.02 ordinary

Sale

226

39.7612 EUR

EUR 0.02 ordinary

Sale

222

39.8750 EUR

EUR 0.02 ordinary

Sale

210

39.0057 EUR

EUR 0.02 ordinary

Sale

207

39.2248 EUR

EUR 0.02 ordinary

Sale

183

38.8242 EUR

EUR 0.02 ordinary

Sale

182

38.9941 EUR

EUR 0.02 ordinary

Sale

147

39.0600 EUR

EUR 0.02 ordinary

Sale

130

39.4629 EUR

EUR 0.02 ordinary

Sale

124

39.2200 EUR

EUR 0.02 ordinary

Sale

123

39.8200 EUR

EUR 0.02 ordinary

Sale

119

39.8989 EUR

EUR 0.02 ordinary

Sale

107

39.6500 EUR

EUR 0.02 ordinary

Sale

104

38.6000 EUR

EUR 0.02 ordinary

Sale

87

39.0100 EUR

EUR 0.02 ordinary

Sale

69

39.1779 EUR

EUR 0.02 ordinary

Sale

53

39.7800 EUR

EUR 0.02 ordinary

Sale

51

39.8800 EUR

EUR 0.02 ordinary

Sale

50

38.8400 EUR

EUR 0.02 ordinary

Sale

44

39.0411 EUR

EUR 0.02 ordinary

Sale

34

39.4800 EUR

EUR 0.02 ordinary

Sale

6

39.1400 EUR

EUR 0.02 ordinary

Sale

2

38.6800 EUR

EUR 0.02 ordinary

Sale

1

39.7200 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

5

38.8800 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

188

39.2843 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

20,656

39.3680 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

2,594

39.4142 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

130

39.4629 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

518

39.4810 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

448

39.8175 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

935

39.8507 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

431

39.8948 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

82

39.8996 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

127

39.9719 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

640

38.6322 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

2,699

38.6675 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

2,097

38.7896 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

265

38.8815 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

13,940

38.9435 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

285

39.0652 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

5,798

39.1716 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

111

39.2632 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

128

39.3705 EUR

EUR 0.02 ordinary

SWAP

Opening Short

349

39.4130 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

387

39.6448 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

31

39.7374 EUR

EUR 0.02 ordinary

CFD

Opening Long

681

38.7391 EUR

EUR 0.02 ordinary

CFD

Increasing Long

2,098

38.8000 EUR

EUR 0.02 ordinary

CFD

Increasing Long

1,428

38.8243 EUR

EUR 0.02 ordinary

CFD

Increasing Long

14,468

38.9044 EUR

EUR 0.02 ordinary

CFD

Decreasing Long

179

39.6326 EUR

EUR 0.02 ordinary

CFD

Decreasing Long

663

39.8915 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:

18 May 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213