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:

22 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:

789,064

2.21%

123,435

0.35%

(2)

Cash-settled derivatives:

132,448

0.37%

782,229

2.19%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

921,512

2.58%

905,664

2.53%

(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

22,675

38.6400 EUR

EUR 0.02 ordinary

Purchase

4,472

38.3870 EUR

EUR 0.02 ordinary

Purchase

3,374

38.5285 EUR

EUR 0.02 ordinary

Purchase

2,946

38.5630 EUR

EUR 0.02 ordinary

Purchase

2,474

38.7433 EUR

EUR 0.02 ordinary

Purchase

1,388

38.6477 EUR

EUR 0.02 ordinary

Purchase

722

38.9650 EUR

EUR 0.02 ordinary

Purchase

530

38.5380 EUR

EUR 0.02 ordinary

Purchase

356

38.7631 EUR

EUR 0.02 ordinary

Purchase

350

38.1313 EUR

EUR 0.02 ordinary

Purchase

223

39.0400 EUR

EUR 0.02 ordinary

Purchase

216

38.7683 EUR

EUR 0.02 ordinary

Purchase

114

38.4000 EUR

EUR 0.02 ordinary

Purchase

100

38.5400 EUR

EUR 0.02 ordinary

Purchase

93

38.1032 EUR

EUR 0.02 ordinary

Purchase

91

38.5329 EUR

EUR 0.02 ordinary

Purchase

32

38.9950 EUR

EUR 0.02 ordinary

Purchase

18

37.3000 EUR

EUR 0.02 ordinary

Purchase

15

38.5560 EUR

EUR 0.02 ordinary

Purchase

7

38.5114 EUR

EUR 0.02 ordinary

Sale

23,325

38.6400 EUR

EUR 0.02 ordinary

Sale

4,211

38.4279 EUR

EUR 0.02 ordinary

Sale

2,946

38.5630 EUR

EUR 0.02 ordinary

Sale

2,773

38.5586 EUR

EUR 0.02 ordinary

Sale

2,396

37.3000 EUR

EUR 0.02 ordinary

Sale

1,237

38.7433 EUR

EUR 0.02 ordinary

Sale

833

38.3603 EUR

EUR 0.02 ordinary

Sale

265

38.6423 EUR

EUR 0.02 ordinary

Sale

361

38.9650 EUR

EUR 0.02 ordinary

Sale

271

38.7358 EUR

EUR 0.02 ordinary

Sale

270

38.7400 EUR

EUR 0.02 ordinary

Sale

211

38.3237 EUR

EUR 0.02 ordinary

Sale

203

38.2832 EUR

EUR 0.02 ordinary

Sale

186

38.1032 EUR

EUR 0.02 ordinary

Sale

182

38.5329 EUR

EUR 0.02 ordinary

Sale

170

38.8500 EUR

EUR 0.02 ordinary

Sale

108

38.7683 EUR

EUR 0.02 ordinary

Sale

84

38.4200 EUR

EUR 0.02 ordinary

Sale

83

38.9600 EUR

EUR 0.02 ordinary

Sale

62

38.6235 EUR

EUR 0.02 ordinary

Sale

57

38.4000 EUR

EUR 0.02 ordinary

Sale

16

38.9950 EUR

EUR 0.02 ordinary

Sale

15

38.6200 EUR

EUR 0.02 ordinary

Sale

2

38.3800 EUR

EUR 0.02 ordinary

Sale

2

37.6900 EUR

EUR 0.02 ordinary

Sale

1

37.6200 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

93

38.1032 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

203

38.2832 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

4,211

38.4279 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

409

38.5314 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

54

38.6400 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

171

38.6433 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

167

38.6883 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

4,472

38.3870 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

7

38.5114 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

15

38.5560 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,388

38.6477 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

2,387

37.3000 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

435

38.6388 EUR

EUR 0.02 ordinary

CFD

Increasing Short

359

38.1105 EUR

EUR 0.02 ordinary

CFD

Increasing Short

1,131

38.8240 EUR

EUR 0.02 ordinary

CFD

Increasing Short

799

38.8276 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:

26 May 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213