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 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:

774,084

2.16%

118,221

0.33%

(2)

Cash-settled derivatives:

124,017

0.35%

769,673

2.15%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

898,101

2.51%

887,894

2.48%

(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

9,043

36.1088 EUR

EUR 0.02 ordinary

Purchase

7,868

36.0195 EUR

EUR 0.02 ordinary

Purchase

4,090

36.1983 EUR

EUR 0.02 ordinary

Purchase

3,790

36.6201 EUR

EUR 0.02 ordinary

Purchase

3,742

36.7822 EUR

EUR 0.02 ordinary

Purchase

3,587

36.6215 EUR

EUR 0.02 ordinary

Purchase

1,728

36.2100 EUR

EUR 0.02 ordinary

Purchase

1,311

36.7300 EUR

EUR 0.02 ordinary

Purchase

1,151

36.7726 EUR

EUR 0.02 ordinary

Purchase

1,118

36.6819 EUR

EUR 0.02 ordinary

Purchase

862

36.3952 EUR

EUR 0.02 ordinary

Purchase

749

36.2020 EUR

EUR 0.02 ordinary

Purchase

481

36.0540 EUR

EUR 0.02 ordinary

Purchase

410

36.4400 EUR

EUR 0.02 ordinary

Purchase

307

35.9746 EUR

EUR 0.02 ordinary

Purchase

257

36.1101 EUR

EUR 0.02 ordinary

Purchase

242

36.0000 EUR

EUR 0.02 ordinary

Purchase

216

36.1248 EUR

EUR 0.02 ordinary

Purchase

168

36.5600 EUR

EUR 0.02 ordinary

Purchase

142

36.0400 EUR

EUR 0.02 ordinary

Purchase

138

35.9631 EUR

EUR 0.02 ordinary

Purchase

132

36.0200 EUR

EUR 0.02 ordinary

Purchase

125

35.9800 EUR

EUR 0.02 ordinary

Purchase

100

36.0654 EUR

EUR 0.02 ordinary

Purchase

99

36.7800 EUR

EUR 0.02 ordinary

Purchase

66

36.2418 EUR

EUR 0.02 ordinary

Purchase

53

36.0486 EUR

EUR 0.02 ordinary

Purchase

51

36.1223 EUR

EUR 0.02 ordinary

Purchase

38

35.7705 EUR

EUR 0.02 ordinary

Purchase

20

35.9740 EUR

EUR 0.02 ordinary

Purchase

10

36.0800 EUR

EUR 0.02 ordinary

Purchase

1

36.2200 EUR

EUR 0.02 ordinary

Sale

15,736

36.0195 EUR

EUR 0.02 ordinary

Sale

7,819

36.1560 EUR

EUR 0.02 ordinary

Sale

2,622

36.7300 EUR

EUR 0.02 ordinary

Sale

1,676

36.1045 EUR

EUR 0.02 ordinary

Sale

864

36.2100 EUR

EUR 0.02 ordinary

Sale

696

36.7800 EUR

EUR 0.02 ordinary

Sale

614

35.9746 EUR

EUR 0.02 ordinary

Sale

559

36.6819 EUR

EUR 0.02 ordinary

Sale

543

36.1382 EUR

EUR 0.02 ordinary

Sale

515

36.4221 EUR

EUR 0.02 ordinary

Sale

358

36.1701 EUR

EUR 0.02 ordinary

Sale

317

36.0989 EUR

EUR 0.02 ordinary

Sale

276

35.9631 EUR

EUR 0.02 ordinary

Sale

250

35.9800 EUR

EUR 0.02 ordinary

Sale

205

36.4400 EUR

EUR 0.02 ordinary

Sale

192

36.2272 EUR

EUR 0.02 ordinary

Sale

161

36.0706 EUR

EUR 0.02 ordinary

Sale

121

36.0000 EUR

EUR 0.02 ordinary

Sale

102

36.1223 EUR

EUR 0.02 ordinary

Sale

95

36.1847 EUR

EUR 0.02 ordinary

Sale

56

36.3803 EUR

EUR 0.02 ordinary

Sale

41

36.0902 EUR

EUR 0.02 ordinary

Sale

23

36.7778 EUR

EUR 0.02 ordinary

Sale

20

36.0800 EUR

EUR 0.02 ordinary

Sale

3

36.1000 EUR

EUR 0.02 ordinary

Sale

1

36.7000 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

12,797

35.9177 EUR

EUR 0.02 ordinary

CFD

Decreasing Long

277

36.2020 EUR

EUR 0.02 ordinary

CFD

Opening Short

1,195

36.5382 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

8,364

36.0147 EUR

EUR 0.02 ordinary

CFD

Increasing Short

20

35.9740 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

23

36.7777 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

1

36.6992 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

9,043

36.1088 EUR

EUR 0.02 ordinary

SWAP

Opening Short

3,462

36.6215 EUR

EUR 0.02 ordinary

SWAP

Closing Long

3,790

36.6201 EUR

EUR 0.02 ordinary

SWAP

Opening Short

125

36.6216 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

317

36.0989 EUR

EUR 0.02 ordinary

CFD

Closing Long

472

36.2020 EUR

EUR 0.02 ordinary

CFD

Increasing Short

38

35.7705 EUR

EUR 0.02 ordinary

CFD

Decreasing Short

56

36.3803 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

95

36.1847 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

3

36.1000 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

100

36.0654 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

481

36.0540 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

411

36.2992 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

3,742

36.7822 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

129

36.2720 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

613

36.7800 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

269

36.1098 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

19

36.3000 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

125

35.9800 EUR

EUR 0.02 ordinary

SWAP

Increasing Short

14

36.0000 EUR

EUR 0.02 ordinary

SWAP

Decreasing Short

1,676

36.1045 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 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213