Form 8.3 AMG Lithium B.V

27 May 2026 14:45

RNS Number : 8889F

Jane Street Financial Limited

27 May 2026

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:	Jane Street Financial Limited
(b) Owner or controller of interests and short positions disclosed, if different from 1(a): The naming of nominee or vehicle companies is insufficient. For a trust, the trustee(s), settlor and beneficiaries must be named.	Jane Street Group, LLC
(c) Name of offeror/offeree in relation to whose relevant securities this form relates: Use a separate form for each offeror/offeree	AMG Lithium B.V. (a direct wholly-owned subsidiary of AMG Critical Materials N.V.)
(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: For an opening position disclosure, state the latest practicable date prior to the disclosure	2026-05-26
(f) In addition to the company in 1(c) above, is the discloser making disclosures in respect of any other party to the offer? If it is a cash offer or possible cash offer, state "N/A"	YES Zinnwald Lithium plc

2. POSITIONS OF THE PERSON MAKING THE DISCLOSURE

If there are positions or rights to subscribe to disclose in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 2(a) or (b) (as appropriate) for each additional class of relevant security.

(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: NL0000888691
	Interests		Short positions
	Number	%	Number	%
(1) Relevant securities owned and/or controlled	0	0%	1300	0.004%
(2) Cash-settled derivatives	433,493	1.212%	0	0%
(3) Stock-settled derivatives (including options) and agreements to purchase/sell	0	0%	0	0%
TOTAL	433,493	1.212%	1300	0.004%

All interests and all short positions should be disclosed.

Details of any open stock-settled derivative positions (including traded options), or agreements to purchase or sell relevant securities, should be given on a Supplemental Form 8 (Open Positions).

(b) Rights to subscribe for new securities (including directors' and other employee options)

Class of relevant security in relation to which subscription right exists:	NA
Details, including nature of the rights concerned and relevant percentages:	NA

3. DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE

Where there have been dealings in more than one class of relevant securities of the offeror or offeree named in 1(c), copy table 3(a), (b), (c) or (d) (as appropriate) for each additional class of relevant security dealt in.

The currency of all prices and other monetary amounts should be stated.

(a) Purchases and sales

Class of relevant security	Purchase/sale	Number of securities	Price per unit
Ordinary Share	Purchase	11783	39.32 EUR
Ordinary Share	Sale	11783	39.32 EUR
Ordinary Share	Purchase	15	39.42 EUR
Ordinary Share	Sale	15	39.42 EUR
Ordinary Share	Purchase	188	39.44 EUR
Ordinary Share	Sale	188	39.44 EUR

See additional dealings below

(b) Cash-settled derivative transactions

Class of relevant security	Product description e.g. CFD	Nature of dealing e.g. opening/closing a long/short position, increasing/reducing a long/short position	Number of reference securities	Price per unit
Ordinary Share	CFD	Reducing a long position	6190	39.32 EUR
Ordinary Share	Equity Swap	Reducing a short position	20983	39.32 EUR
Ordinary Share	Equity Swap	Increasing a short position	13293	39.32 EUR
Ordinary Share	Equity Swap	Reducing a long position	13283	39.32 EUR
Ordinary Share	Equity Swap	Reducing a short position	15	39.42 EUR
Ordinary Share	Equity Swap	Reducing a short position	188	39.44 EUR

See additional dealings below

(i) Writing, selling, purchasing or varying

Class of relevant security

Product description e.g. call option

Writing, purchasing, selling, varying etc.

Number of securities to which option relates

Exercise price per unit

Type

e.g. American, European etc.

Expiry date

Option money paid/ received per unit

(ii) Exercise

Class of relevant security

Product description

e.g. call option

Exercising/ exercised against

Number of securities

Exercise price per unit

(d) Other dealings (including subscribing for new securities)

Class of relevant security

Nature of dealing

e.g. subscription, conversion

Details

Price per unit (if applicable)

4. OTHER INFORMATION

(a) Indemnity and other dealing 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 person making the disclosure and any party to the offer or any person acting in concert with a party to the offer:

Irrevocable commitments and letters of intent should not be included. If there are no such agreements, arrangements or understandings, state "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 or future acquisition or disposal of any relevant securities to which any derivative is referenced:

If there are no such agreements, arrangements or understandings, state "none"

Is a Supplemental Form 8 (Open Positions) attached?

Date of disclosure:	2026-05-27
Contact name:	Chris Milsted
Telephone number*:	+442037873373

Public disclosures under Rule 8 of the Code must be made to a Regulatory Information Service.

The Panel's Market Surveillance Unit is available for consultation in relation to the Code's disclosure requirements on +44 (0)20 7638 0129.

*If the discloser is a natural person, a telephone number does not need to be included, provided contact information has been provided to the Panel's Market Surveillance Unit.

The Code can be viewed on the Panel's website at www.thetakeoverpanel.org.uk.

Additional Dealings

Class of relevant security	Purchase/sale	Number of securities	Price per unit
Ordinary Share	Purchase	176	39.45 EUR
Ordinary Share	Sale	176	39.45 EUR
Ordinary Share	Purchase	88	39.46 EUR
Ordinary Share	Sale	88	39.46 EUR
Ordinary Share	Purchase	35	39.49 EUR
Ordinary Share	Sale	35	39.49 EUR
Ordinary Share	Purchase	652	39.5 EUR
Ordinary Share	Sale	652	39.5 EUR
Ordinary Share	Purchase	3	39.51 EUR
Ordinary Share	Sale	3	39.51 EUR
Ordinary Share	Purchase	833	39.52 EUR
Ordinary Share	Sale	833	39.52 EUR
Ordinary Share	Purchase	314	39.54 EUR
Ordinary Share	Sale	314	39.54 EUR
Ordinary Share	Purchase	214	39.56 EUR
Ordinary Share	Sale	214	39.56 EUR
Ordinary Share	Purchase	349	39.58 EUR
Ordinary Share	Sale	349	39.58 EUR
Ordinary Share	Purchase	491	39.59 EUR
Ordinary Share	Sale	491	39.59 EUR
Ordinary Share	Purchase	701	39.6 EUR
Ordinary Share	Sale	701	39.6 EUR
Ordinary Share	Purchase	183	39.62 EUR
Ordinary Share	Sale	183	39.62 EUR
Ordinary Share	Purchase	167	39.63 EUR
Ordinary Share	Sale	167	39.63 EUR
Ordinary Share	Purchase	146	39.64 EUR
Ordinary Share	Sale	146	39.64 EUR
Ordinary Share	Purchase	439	39.65 EUR
Ordinary Share	Sale	439	39.65 EUR
Ordinary Share	Purchase	2155	39.66 EUR
Ordinary Share	Sale	2155	39.66 EUR
Ordinary Share	Purchase	4	39.67 EUR
Ordinary Share	Sale	4	39.67 EUR
Ordinary Share	Purchase	515	39.68 EUR
Ordinary Share	Sale	515	39.68 EUR
Ordinary Share	Purchase	40	39.69 EUR
Ordinary Share	Sale	40	39.69 EUR
Ordinary Share	Purchase	561	39.7 EUR
Ordinary Share	Sale	561	39.7 EUR
Ordinary Share	Purchase	267	39.71 EUR
Ordinary Share	Sale	267	39.71 EUR
Ordinary Share	Purchase	1114	39.72 EUR
Ordinary Share	Sale	1114	39.72 EUR
Ordinary Share	Purchase	485	39.73 EUR
Ordinary Share	Sale	485	39.73 EUR
Ordinary Share	Purchase	1441	39.74 EUR
Ordinary Share	Sale	1441	39.74 EUR
Ordinary Share	Purchase	596	39.75 EUR
Ordinary Share	Sale	596	39.75 EUR
Ordinary Share	Purchase	1185	39.76 EUR
Ordinary Share	Sale	1185	39.76 EUR
Ordinary Share	Purchase	255	39.77 EUR
Ordinary Share	Sale	255	39.77 EUR
Ordinary Share	Purchase	908	39.78 EUR
Ordinary Share	Sale	908	39.78 EUR
Ordinary Share	Purchase	670	39.79 EUR
Ordinary Share	Sale	670	39.79 EUR
Ordinary Share	Purchase	3560	39.8 EUR
Ordinary Share	Sale	3560	39.8 EUR
Ordinary Share	Purchase	564	39.81 EUR
Ordinary Share	Sale	564	39.81 EUR
Ordinary Share	Purchase	1730	39.82 EUR
Ordinary Share	Sale	1730	39.82 EUR
Ordinary Share	Purchase	1308	39.83 EUR
Ordinary Share	Sale	1308	39.83 EUR
Ordinary Share	Purchase	1344	39.84 EUR
Ordinary Share	Sale	1344	39.84 EUR
Ordinary Share	Purchase	259	39.85 EUR
Ordinary Share	Sale	259	39.85 EUR
Ordinary Share	Purchase	417	39.86 EUR
Ordinary Share	Sale	417	39.86 EUR
Ordinary Share	Purchase	140	39.87 EUR
Ordinary Share	Sale	140	39.87 EUR
Ordinary Share	Purchase	672	39.88 EUR
Ordinary Share	Sale	672	39.88 EUR
Ordinary Share	Purchase	377	39.89 EUR
Ordinary Share	Sale	377	39.89 EUR
Ordinary Share	Purchase	1487	39.9 EUR
Ordinary Share	Sale	1487	39.9 EUR
Ordinary Share	Purchase	1	39.91 EUR
Ordinary Share	Sale	1	39.91 EUR
Ordinary Share	Purchase	337	39.92 EUR
Ordinary Share	Sale	337	39.92 EUR
Ordinary Share	Purchase	646	39.94 EUR
Ordinary Share	Sale	646	39.94 EUR
Ordinary Share	Purchase	174	40 EUR
Ordinary Share	Sale	174	40 EUR
Ordinary Share	Purchase	31	40.05 EUR
Ordinary Share	Sale	31	40.05 EUR

Class of relevant security	Product description e.g. CFD	Nature of dealing e.g. opening/closing a long/short position, increasing/reducing a long/short position	Number of reference securities	Price per unit
Ordinary Share	Equity Swap	Reducing a short position	176	39.45 EUR
Ordinary Share	Equity Swap	Reducing a short position	14	39.46 EUR
Ordinary Share	Equity Swap	Increasing a short position	74	39.46 EUR
Ordinary Share	Equity Swap	Increasing a short position	35	39.49 EUR
Ordinary Share	Equity Swap	Reducing a short position	182	39.5 EUR
Ordinary Share	Equity Swap	Increasing a short position	470	39.5 EUR
Ordinary Share	Equity Swap	Increasing a short position	3	39.51 EUR
Ordinary Share	Equity Swap	Increasing a short position	833	39.52 EUR
Ordinary Share	Equity Swap	Increasing a long position	151	39.54 EUR
Ordinary Share	Equity Swap	Opening a long position	162	39.54 EUR
Ordinary Share	Equity Swap	Increasing a short position	1	39.54 EUR
Ordinary Share	Equity Swap	Increasing a short position	214	39.56 EUR
Ordinary Share	CFD	Reducing a long position	97	39.58 EUR
Ordinary Share	Equity Swap	Increasing a long position	26	39.58 EUR
Ordinary Share	Equity Swap	Increasing a short position	226	39.58 EUR
Ordinary Share	Equity Swap	Reducing a short position	341	39.59 EUR
Ordinary Share	Equity Swap	Increasing a short position	150	39.59 EUR
Ordinary Share	Equity Swap	Increasing a long position	50	39.6 EUR
Ordinary Share	Equity Swap	Reducing a short position	60	39.6 EUR
Ordinary Share	Equity Swap	Increasing a short position	413	39.6 EUR
Ordinary Share	Equity Swap	Opening a short position	178	39.6 EUR
Ordinary Share	Equity Swap	Increasing a short position	17	39.62 EUR
Ordinary Share	Equity Swap	Reducing a long position	166	39.62 EUR
Ordinary Share	Equity Swap	Reducing a long position	167	39.63 EUR
Ordinary Share	Equity Swap	Increasing a long position	93	39.64 EUR
Ordinary Share	Equity Swap	Increasing a short position	53	39.64 EUR
Ordinary Share	Equity Swap	Reducing a short position	113	39.65 EUR
Ordinary Share	Equity Swap	Increasing a short position	326	39.65 EUR
Ordinary Share	CFD	Reducing a long position	2598	39.66 EUR
Ordinary Share	Equity Swap	Increasing a long position	113	39.66 EUR
Ordinary Share	Equity Swap	Reducing a short position	2735	39.66 EUR
Ordinary Share	Equity Swap	Increasing a short position	639	39.66 EUR
Ordinary Share	Equity Swap	Opening a short position	661	39.66 EUR
Ordinary Share	Equity Swap	Reducing a long position	605	39.66 EUR
Ordinary Share	Equity Swap	Increasing a short position	4	39.67 EUR
Ordinary Share	Equity Swap	Increasing a short position	482	39.68 EUR
Ordinary Share	Equity Swap	Opening a short position	33	39.68 EUR
Ordinary Share	Equity Swap	Reducing a short position	40	39.69 EUR
Ordinary Share	Equity Swap	Increasing a long position	30	39.7 EUR
Ordinary Share	Equity Swap	Reducing a short position	26	39.7 EUR
Ordinary Share	Equity Swap	Increasing a short position	116	39.7 EUR
Ordinary Share	Equity Swap	Opening a short position	23	39.7 EUR
Ordinary Share	Equity Swap	Reducing a long position	366	39.7 EUR
Ordinary Share	Equity Swap	Increasing a short position	29	39.71 EUR
Ordinary Share	Equity Swap	Opening a short position	121	39.71 EUR
Ordinary Share	Equity Swap	Reducing a long position	117	39.71 EUR
Ordinary Share	Equity Swap	Opening a long position	57	39.72 EUR
Ordinary Share	Equity Swap	Reducing a short position	372	39.72 EUR
Ordinary Share	Equity Swap	Increasing a short position	486	39.72 EUR
Ordinary Share	Equity Swap	Opening a short position	199	39.72 EUR
Ordinary Share	Equity Swap	Increasing a long position	270	39.73 EUR
Ordinary Share	Equity Swap	Increasing a short position	215	39.73 EUR
Ordinary Share	Equity Swap	Increasing a long position	115	39.74 EUR
Ordinary Share	Equity Swap	Reducing a short position	342	39.74 EUR
Ordinary Share	Equity Swap	Increasing a short position	984	39.74 EUR
Ordinary Share	Equity Swap	Reducing a short position	17	39.75 EUR
Ordinary Share	Equity Swap	Increasing a short position	579	39.75 EUR
Ordinary Share	Equity Swap	Reducing a short position	287	39.76 EUR
Ordinary Share	Equity Swap	Increasing a short position	898	39.76 EUR
Ordinary Share	Equity Swap	Reducing a short position	51	39.77 EUR
Ordinary Share	Equity Swap	Reducing a long position	204	39.77 EUR
Ordinary Share	Equity Swap	Reducing a short position	17	39.78 EUR
Ordinary Share	Equity Swap	Increasing a short position	620	39.78 EUR
Ordinary Share	Equity Swap	Reducing a long position	271	39.78 EUR
Ordinary Share	Equity Swap	Increasing a long position	119	39.79 EUR
Ordinary Share	Equity Swap	Opening a long position	100	39.79 EUR
Ordinary Share	Equity Swap	Reducing a short position	309	39.79 EUR
Ordinary Share	Equity Swap	Increasing a short position	142	39.79 EUR
Ordinary Share	Equity Swap	Increasing a long position	44	39.8 EUR
Ordinary Share	Equity Swap	Opening a long position	260	39.8 EUR
Ordinary Share	Equity Swap	Reducing a short position	107	39.8 EUR
Ordinary Share	Equity Swap	Increasing a short position	2787	39.8 EUR
Ordinary Share	Equity Swap	Reducing a long position	362	39.8 EUR
Ordinary Share	Equity Swap	Reducing a short position	125	39.81 EUR
Ordinary Share	Equity Swap	Increasing a short position	18	39.81 EUR
Ordinary Share	Equity Swap	Reducing a long position	421	39.81 EUR
Ordinary Share	Equity Swap	Reducing a short position	222	39.82 EUR
Ordinary Share	Equity Swap	Increasing a short position	1210	39.82 EUR
Ordinary Share	Equity Swap	Opening a short position	197	39.82 EUR
Ordinary Share	Equity Swap	Reducing a long position	101	39.82 EUR
Ordinary Share	Equity Swap	Increasing a long position	372	39.83 EUR
Ordinary Share	Equity Swap	Reducing a short position	432	39.83 EUR
Ordinary Share	Equity Swap	Increasing a short position	158	39.83 EUR
Ordinary Share	Equity Swap	Reducing a long position	346	39.83 EUR
Ordinary Share	Equity Swap	Increasing a long position	331	39.84 EUR
Ordinary Share	Equity Swap	Reducing a short position	601	39.84 EUR
Ordinary Share	Equity Swap	Increasing a short position	412	39.84 EUR
Ordinary Share	Equity Swap	Reducing a short position	126	39.85 EUR
Ordinary Share	Equity Swap	Increasing a short position	125	39.85 EUR
Ordinary Share	Equity Swap	Reducing a long position	8	39.85 EUR
Ordinary Share	Equity Swap	Reducing a short position	240	39.86 EUR
Ordinary Share	Equity Swap	Increasing a short position	177	39.86 EUR
Ordinary Share	Equity Swap	Increasing a long position	75	39.87 EUR
Ordinary Share	Equity Swap	Reducing a short position	17	39.87 EUR
Ordinary Share	Equity Swap	Reducing a long position	48	39.87 EUR
Ordinary Share	Equity Swap	Reducing a short position	113	39.88 EUR
Ordinary Share	Equity Swap	Increasing a short position	327	39.88 EUR
Ordinary Share	Equity Swap	Reducing a long position	232	39.88 EUR
Ordinary Share	Equity Swap	Reducing a short position	196	39.89 EUR
Ordinary Share	Equity Swap	Increasing a short position	181	39.89 EUR
Ordinary Share	Equity Swap	Increasing a long position	1487	39.9 EUR
Ordinary Share	Equity Swap	Increasing a short position	1	39.91 EUR
Ordinary Share	Equity Swap	Increasing a short position	337	39.92 EUR
Ordinary Share	Equity Swap	Reducing a long position	646	39.94 EUR
Ordinary Share	Equity Swap	Increasing a long position	174	40 EUR
Ordinary Share	Equity Swap	Increasing a long position	31	40.05 EUR

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