Form 8.3 AMG Lithium B.V

3 Jun 2026 14:45

RNS Number : 8717G

Jane Street Financial Limited

03 June 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	2026-06-02
(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%	0	0%
(2) Cash-settled derivatives	393,696	1.106%	0	0%
(3) Stock-settled derivatives (including options) and agreements to purchase/sell	0	0%	0	0%
TOTAL	393,696	1.106%	0	0%

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	500	40.98 EUR
Ordinary Share	Sale	500	40.98 EUR
Ordinary Share	Purchase	178	41 EUR
Ordinary Share	Sale	178	41 EUR
Ordinary Share	Purchase	142	41.02 EUR
Ordinary Share	Sale	142	41.02 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	Equity Swap	Opening a short position	500	40.98 EUR
Ordinary Share	Equity Swap	Reducing a long position	178	41 EUR
Ordinary Share	Equity Swap	Reducing a long position	142	41.02 EUR
Ordinary Share	Equity Swap	Increasing a long position	843	41.06 EUR
Ordinary Share	Equity Swap	Increasing a short position	206	41.06 EUR
Ordinary Share	Equity Swap	Reducing a long position	754	41.06 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:	2026-06-03
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	1803	41.06 EUR
Ordinary Share	Sale	1803	41.06 EUR
Ordinary Share	Purchase	786	41.08 EUR
Ordinary Share	Sale	786	41.08 EUR
Ordinary Share	Purchase	1058	41.1 EUR
Ordinary Share	Sale	1058	41.1 EUR
Ordinary Share	Purchase	828	41.12 EUR
Ordinary Share	Sale	828	41.12 EUR
Ordinary Share	Purchase	1763	41.14 EUR
Ordinary Share	Sale	1763	41.14 EUR
Ordinary Share	Purchase	1085	41.15 EUR
Ordinary Share	Sale	1085	41.15 EUR
Ordinary Share	Purchase	363	41.16 EUR
Ordinary Share	Sale	363	41.16 EUR
Ordinary Share	Purchase	493	41.17 EUR
Ordinary Share	Sale	493	41.17 EUR
Ordinary Share	Purchase	302	41.18 EUR
Ordinary Share	Sale	302	41.18 EUR
Ordinary Share	Purchase	753	41.2 EUR
Ordinary Share	Sale	753	41.2 EUR
Ordinary Share	Purchase	518	41.21 EUR
Ordinary Share	Sale	518	41.21 EUR
Ordinary Share	Purchase	775	41.22 EUR
Ordinary Share	Sale	775	41.22 EUR
Ordinary Share	Purchase	248	41.23 EUR
Ordinary Share	Sale	248	41.23 EUR
Ordinary Share	Purchase	113	41.26 EUR
Ordinary Share	Sale	113	41.26 EUR
Ordinary Share	Purchase	719	41.27 EUR
Ordinary Share	Sale	719	41.27 EUR
Ordinary Share	Purchase	12877	41.28 EUR
Ordinary Share	Sale	12990	41.28 EUR
Ordinary Share	Purchase	19	41.3 EUR
Ordinary Share	Sale	19	41.3 EUR
Ordinary Share	Purchase	68	41.34 EUR
Ordinary Share	Sale	68	41.34 EUR
Ordinary Share	Purchase	106	41.37 EUR
Ordinary Share	Sale	106	41.37 EUR
Ordinary Share	Purchase	170	41.38 EUR
Ordinary Share	Sale	170	41.38 EUR
Ordinary Share	Purchase	159	41.4 EUR
Ordinary Share	Sale	159	41.4 EUR
Ordinary Share	Purchase	301	41.41 EUR
Ordinary Share	Sale	301	41.41 EUR
Ordinary Share	Purchase	28	41.42 EUR
Ordinary Share	Sale	28	41.42 EUR
Ordinary Share	Purchase	493	41.43 EUR
Ordinary Share	Sale	493	41.43 EUR
Ordinary Share	Purchase	775	41.44 EUR
Ordinary Share	Sale	775	41.44 EUR
Ordinary Share	Purchase	125	41.45 EUR
Ordinary Share	Sale	125	41.45 EUR
Ordinary Share	Purchase	22	41.46 EUR
Ordinary Share	Sale	22	41.46 EUR
Ordinary Share	Purchase	110	41.47 EUR
Ordinary Share	Sale	110	41.47 EUR
Ordinary Share	Purchase	498	41.48 EUR
Ordinary Share	Sale	498	41.48 EUR
Ordinary Share	Purchase	436	41.5 EUR
Ordinary Share	Sale	436	41.5 EUR
Ordinary Share	Purchase	492	41.51 EUR
Ordinary Share	Sale	492	41.51 EUR
Ordinary Share	Purchase	246	41.55 EUR
Ordinary Share	Sale	246	41.55 EUR
Ordinary Share	Purchase	74	41.56 EUR
Ordinary Share	Sale	74	41.56 EUR
Ordinary Share	Purchase	180	41.6 EUR
Ordinary Share	Sale	180	41.6 EUR
Ordinary Share	Purchase	281	41.62 EUR
Ordinary Share	Sale	281	41.62 EUR
Ordinary Share	Purchase	35	41.63 EUR
Ordinary Share	Sale	35	41.63 EUR
Ordinary Share	Purchase	530	41.64 EUR
Ordinary Share	Sale	530	41.64 EUR
Ordinary Share	Purchase	17	41.65 EUR
Ordinary Share	Sale	17	41.65 EUR
Ordinary Share	Purchase	120	41.66 EUR
Ordinary Share	Sale	120	41.66 EUR
Ordinary Share	Purchase	226	41.68 EUR
Ordinary Share	Sale	226	41.68 EUR
Ordinary Share	Purchase	229	41.69 EUR
Ordinary Share	Sale	229	41.69 EUR
Ordinary Share	Purchase	250	41.7 EUR
Ordinary Share	Sale	250	41.7 EUR
Ordinary Share	Purchase	28	41.71 EUR
Ordinary Share	Sale	28	41.71 EUR
Ordinary Share	Purchase	170	41.73 EUR
Ordinary Share	Sale	170	41.73 EUR
Ordinary Share	Purchase	130	41.74 EUR
Ordinary Share	Sale	130	41.74 EUR
Ordinary Share	Purchase	616	41.78 EUR
Ordinary Share	Sale	616	41.78 EUR
Ordinary Share	Purchase	18	41.79 EUR
Ordinary Share	Sale	18	41.79 EUR
Ordinary Share	Purchase	24	41.8 EUR
Ordinary Share	Sale	24	41.8 EUR
Ordinary Share	Purchase	625	41.82 EUR
Ordinary Share	Sale	625	41.82 EUR
Ordinary Share	Purchase	1485	41.84 EUR
Ordinary Share	Sale	1485	41.84 EUR
Ordinary Share	Purchase	12	41.86 EUR
Ordinary Share	Sale	12	41.86 EUR
Ordinary Share	Purchase	680	41.88 EUR
Ordinary Share	Sale	680	41.88 EUR
Ordinary Share	Purchase	521	41.89 EUR
Ordinary Share	Sale	521	41.89 EUR
Ordinary Share	Purchase	44	41.9 EUR
Ordinary Share	Sale	44	41.9 EUR
Ordinary Share	Purchase	24	41.94 EUR
Ordinary Share	Sale	24	41.94 EUR
Ordinary Share	Purchase	39	41.96 EUR
Ordinary Share	Sale	39	41.96 EUR
Ordinary Share	Purchase	87	41.98 EUR
Ordinary Share	Sale	87	41.98 EUR
Ordinary Share	Purchase	5333	42 EUR
Ordinary Share	Sale	5333	42 EUR
Ordinary Share	Purchase	1	42.11 EUR
Ordinary Share	Sale	1	42.11 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	Increasing a long position	236	41.08 EUR
Ordinary Share	Equity Swap	Increasing a short position	450	41.08 EUR
Ordinary Share	Equity Swap	Reducing a long position	100	41.08 EUR
Ordinary Share	Equity Swap	Increasing a long position	41	41.1 EUR
Ordinary Share	Equity Swap	Reducing a long position	1017	41.1 EUR
Ordinary Share	Equity Swap	Increasing a long position	822	41.12 EUR
Ordinary Share	Equity Swap	Increasing a short position	6	41.12 EUR
Ordinary Share	Equity Swap	Increasing a long position	1423	41.14 EUR
Ordinary Share	Equity Swap	Increasing a short position	27	41.14 EUR
Ordinary Share	Equity Swap	Reducing a long position	313	41.14 EUR
Ordinary Share	Equity Swap	Increasing a long position	1064	41.15 EUR
Ordinary Share	Equity Swap	Reducing a long position	21	41.15 EUR
Ordinary Share	Equity Swap	Increasing a long position	172	41.16 EUR
Ordinary Share	Equity Swap	Increasing a short position	86	41.16 EUR
Ordinary Share	Equity Swap	Reducing a long position	105	41.16 EUR
Ordinary Share	Equity Swap	Increasing a long position	492	41.17 EUR
Ordinary Share	Equity Swap	Reducing a long position	1	41.17 EUR
Ordinary Share	Equity Swap	Increasing a long position	126	41.18 EUR
Ordinary Share	Equity Swap	Reducing a long position	176	41.18 EUR
Ordinary Share	Equity Swap	Increasing a long position	567	41.2 EUR
Ordinary Share	Equity Swap	Reducing a long position	186	41.2 EUR
Ordinary Share	Equity Swap	Increasing a long position	518	41.21 EUR
Ordinary Share	Equity Swap	Increasing a long position	774	41.22 EUR
Ordinary Share	Equity Swap	Reducing a long position	1	41.22 EUR
Ordinary Share	Equity Swap	Increasing a long position	248	41.23 EUR
Ordinary Share	Equity Swap	Increasing a long position	113	41.26 EUR
Ordinary Share	Equity Swap	Increasing a long position	719	41.27 EUR
Ordinary Share	Equity Swap	Increasing a long position	94	41.28 EUR
Ordinary Share	Equity Swap	Opening a long position	7034	41.28 EUR
Ordinary Share	Equity Swap	Reducing a short position	15155	41.28 EUR
Ordinary Share	Equity Swap	Increasing a short position	4906	41.28 EUR
Ordinary Share	Equity Swap	Opening a short position	8974	41.28 EUR
Ordinary Share	Equity Swap	Reducing a long position	22409	41.28 EUR
Ordinary Share	Equity Swap	Increasing a long position	19	41.3 EUR
Ordinary Share	Equity Swap	Increasing a long position	68	41.34 EUR
Ordinary Share	Equity Swap	Reducing a long position	106	41.37 EUR
Ordinary Share	Equity Swap	Reducing a long position	170	41.38 EUR
Ordinary Share	Equity Swap	Reducing a long position	159	41.4 EUR
Ordinary Share	Equity Swap	Reducing a long position	301	41.41 EUR
Ordinary Share	Equity Swap	Reducing a long position	28	41.42 EUR
Ordinary Share	Equity Swap	Reducing a long position	493	41.43 EUR
Ordinary Share	Equity Swap	Increasing a long position	626	41.44 EUR
Ordinary Share	Equity Swap	Reducing a long position	149	41.44 EUR
Ordinary Share	Equity Swap	Reducing a long position	125	41.45 EUR
Ordinary Share	Equity Swap	Reducing a long position	22	41.46 EUR
Ordinary Share	Equity Swap	Reducing a long position	110	41.47 EUR
Ordinary Share	Equity Swap	Increasing a long position	498	41.48 EUR
Ordinary Share	Equity Swap	Increasing a long position	436	41.5 EUR
Ordinary Share	Equity Swap	Increasing a long position	492	41.51 EUR
Ordinary Share	Equity Swap	Increasing a long position	246	41.55 EUR
Ordinary Share	Equity Swap	Reducing a long position	74	41.56 EUR
Ordinary Share	Equity Swap	Increasing a long position	165	41.6 EUR
Ordinary Share	Equity Swap	Reducing a long position	15	41.6 EUR
Ordinary Share	Equity Swap	Increasing a long position	4	41.62 EUR
Ordinary Share	Equity Swap	Reducing a long position	277	41.62 EUR
Ordinary Share	Equity Swap	Reducing a long position	35	41.63 EUR
Ordinary Share	Equity Swap	Increasing a long position	530	41.64 EUR
Ordinary Share	Equity Swap	Increasing a long position	7	41.65 EUR
Ordinary Share	Equity Swap	Reducing a long position	10	41.65 EUR
Ordinary Share	Equity Swap	Reducing a long position	120	41.66 EUR
Ordinary Share	Equity Swap	Increasing a long position	226	41.68 EUR
Ordinary Share	Equity Swap	Reducing a long position	229	41.69 EUR
Ordinary Share	Equity Swap	Reducing a long position	250	41.7 EUR
Ordinary Share	Equity Swap	Reducing a long position	28	41.71 EUR
Ordinary Share	Equity Swap	Increasing a long position	170	41.73 EUR
Ordinary Share	Equity Swap	Reducing a long position	130	41.74 EUR
Ordinary Share	Equity Swap	Increasing a long position	129	41.78 EUR
Ordinary Share	Equity Swap	Opening a short position	22	41.78 EUR
Ordinary Share	Equity Swap	Reducing a long position	465	41.78 EUR
Ordinary Share	Equity Swap	Reducing a long position	18	41.79 EUR
Ordinary Share	Equity Swap	Reducing a long position	24	41.8 EUR
Ordinary Share	Equity Swap	Increasing a long position	605	41.82 EUR
Ordinary Share	Equity Swap	Reducing a long position	20	41.82 EUR
Ordinary Share	CFD	Increasing a long position	75	41.84 EUR
Ordinary Share	Equity Swap	Increasing a long position	1410	41.84 EUR
Ordinary Share	Equity Swap	Reducing a long position	12	41.86 EUR
Ordinary Share	Equity Swap	Increasing a long position	680	41.88 EUR
Ordinary Share	Equity Swap	Increasing a long position	521	41.89 EUR
Ordinary Share	Equity Swap	Increasing a long position	44	41.9 EUR
Ordinary Share	Equity Swap	Opening a long position	2	41.94 EUR
Ordinary Share	Equity Swap	Reducing a short position	22	41.94 EUR
Ordinary Share	Equity Swap	Reducing a long position	39	41.96 EUR
Ordinary Share	Equity Swap	Increasing a long position	48	41.98 EUR
Ordinary Share	Equity Swap	Reducing a long position	39	41.98 EUR
Ordinary Share	Equity Swap	Increasing a long position	5333	42 EUR
Ordinary Share	Equity Swap	Reducing a long position	1	42.11 EUR

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