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:

29 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:

847,523

2.37%

118,206

0.33%

(2)

Cash-settled derivatives:

127,213

0.36%

842,238

2.36%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

974,736

2.73%

960,444

2.69%

(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

34,794

42.1200 EUR

EUR 0.02 ordinary

Purchase

30,534

42.5052 EUR

EUR 0.02 ordinary

Purchase

10,304

42.7871 EUR

EUR 0.02 ordinary

Purchase

8,532

42.1533 EUR

EUR 0.02 ordinary

Purchase

1,197

42.1502 EUR

EUR 0.02 ordinary

Purchase

1,017

42.1115 EUR

EUR 0.02 ordinary

Purchase

513

43.0560 EUR

EUR 0.02 ordinary

Purchase

234

42.6894 EUR

EUR 0.02 ordinary

Purchase

182

42.3563 EUR

EUR 0.02 ordinary

Purchase

179

42.5640 EUR

EUR 0.02 ordinary

Purchase

160

42.7852 EUR

EUR 0.02 ordinary

Purchase

137

42.8017 EUR

EUR 0.02 ordinary

Purchase

117

42.7370 EUR

EUR 0.02 ordinary

Purchase

99

42.9498 EUR

EUR 0.02 ordinary

Purchase

84

42.3354 EUR

EUR 0.02 ordinary

Purchase

61

42.7400 EUR

EUR 0.02 ordinary

Purchase

52

42.5250 EUR

EUR 0.02 ordinary

Purchase

49

42.5504 EUR

EUR 0.02 ordinary

Purchase

34

42.6187 EUR

EUR 0.02 ordinary

Purchase

28

42.7250 EUR

EUR 0.02 ordinary

Purchase

14

42.9142 EUR

EUR 0.02 ordinary

Purchase

2

42.5500 EUR

EUR 0.02 ordinary

Purchase

1

42.6200 EUR

EUR 0.02 ordinary

Sale

26,290

42.1200 EUR

EUR 0.02 ordinary

Sale

8,541

42.4486 EUR

EUR 0.02 ordinary

Sale

8,112

42.1292 EUR

EUR 0.02 ordinary

Sale

4,826

42.2136 EUR

EUR 0.02 ordinary

Sale

1,018

42.1203 EUR

EUR 0.02 ordinary

Sale

769

42.1115 EUR

EUR 0.02 ordinary

Sale

511

41.6400 EUR

EUR 0.02 ordinary

Sale

395

42.6960 EUR

EUR 0.02 ordinary

Sale

222

42.5810 EUR

EUR 0.02 ordinary

Sale

177

42.5796 EUR

EUR 0.02 ordinary

Sale

168

42.1187 EUR

EUR 0.02 ordinary

Sale

160

42.7852 EUR

EUR 0.02 ordinary

Sale

150

42.8735 EUR

EUR 0.02 ordinary

Sale

144

42.7875 EUR

EUR 0.02 ordinary

Sale

65

42.8581 EUR

EUR 0.02 ordinary

Sale

52

43.0165 EUR

EUR 0.02 ordinary

Sale

34

42.6200 EUR

EUR 0.02 ordinary

Sale

24

42.1191 EUR

EUR 0.02 ordinary

Sale

2

42.7600 EUR

EUR 0.02 ordinary

Sale

2

42.9000 EUR

EUR 0.02 ordinary

Sale

1

42.6600 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

Increasing Short

84

42.3355 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

47

42.8165 EUR

EUR 0.02 ordinary

CFD

Increasing Short

352

42.5194 EUR

EUR 0.02 ordinary

CFD

Increasing Short

10,916

42.8047 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,643

42.1200 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

168

42.1187 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

49

42.5502 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

117

42.9285 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

4,257

42.1200 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

8,541

42.4486 EUR

EUR 0.02 ordinary

SWAP

Decreasing Long

164

42.1502 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

1,033

42.1502 EUR

EUR 0.02 ordinary

SWAP

Increasing Long

24

42.1191 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

177

42.5796 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

2,688

42.1276 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

234

42.6894 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

80

42.5950 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

511

41.6400 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

144

42.7875 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

179

42.5640 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

769

42.1115 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

30,534

42.5052 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

4,826

42.2136 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:

01 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213