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: 26 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: 853,379 2.39% 109,671 0.31% | (2) Cash-settled derivatives: | 121,929 0.34% 850,674 2.38% | (3) Stock-settled derivatives (including options) | and agreements to purchase/sell: 0 0.00% 0 0.00% | TOTAL: 975,308 2.73% 960,345 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 8,072 32.9025 EUR | EUR 0.02 ordinary Purchase 6,052 32.6022 EUR | EUR 0.02 ordinary Purchase 5,678 32.9000 EUR | EUR 0.02 ordinary Purchase 2,866 32.9019 EUR | EUR 0.02 ordinary Purchase 2,691 32.8628 EUR | EUR 0.02 ordinary Purchase 1,858 32.5258 EUR | EUR 0.02 ordinary Purchase 1,758 32.5204 EUR | EUR 0.02 ordinary Purchase 1,757 32.6864 EUR | EUR 0.02 ordinary Purchase 762 32.9955 EUR | EUR 0.02 ordinary Purchase 676 32.5359 EUR | EUR 0.02 ordinary Purchase 500 32.7639 EUR | EUR 0.02 ordinary Purchase 439 32.6145 EUR | EUR 0.02 ordinary Purchase 402 32.6044 EUR | EUR 0.02 ordinary Purchase 397 32.6309 EUR | EUR 0.02 ordinary Purchase 344 32.7565 EUR | EUR 0.02 ordinary Purchase 328 32.6434 EUR | EUR 0.02 ordinary Purchase 301 32.6251 EUR | EUR 0.02 ordinary Purchase 248 32.6497 EUR | EUR 0.02 ordinary Purchase 220 32.6300 EUR | EUR 0.02 ordinary Purchase 209 32.6400 EUR | EUR 0.02 ordinary Purchase 187 32.6019 EUR | EUR 0.02 ordinary Purchase 184 32.6619 EUR | EUR 0.02 ordinary Purchase 178 32.6000 EUR | EUR 0.02 ordinary Purchase 138 32.4833 EUR | EUR 0.02 ordinary Purchase 135 32.6632 EUR | EUR 0.02 ordinary Purchase 113 32.6200 EUR | EUR 0.02 ordinary Purchase 113 32.5800 EUR | EUR 0.02 ordinary Purchase 109 32.5400 EUR | EUR 0.02 ordinary Purchase 107 32.5200 EUR | EUR 0.02 ordinary Purchase 103 32.6392 EUR | EUR 0.02 ordinary Purchase 98 32.5902 EUR | EUR 0.02 ordinary Purchase 97 32.4526 EUR | EUR 0.02 ordinary Purchase 81 32.4200 EUR | EUR 0.02 ordinary Purchase 78 32.6225 EUR | EUR 0.02 ordinary Purchase 68 32.7566 EUR | EUR 0.02 ordinary Purchase 67 32.7200 EUR | EUR 0.02 ordinary Purchase 60 32.5000 EUR | EUR 0.02 ordinary Purchase 57 32.5280 EUR | EUR 0.02 ordinary Purchase 56 32.5700 EUR | EUR 0.02 ordinary Purchase 56 32.5600 EUR | EUR 0.02 ordinary Purchase 52 32.4100 EUR | EUR 0.02 ordinary Purchase 48 32.7564 EUR | EUR 0.02 ordinary Purchase 48 32.4800 EUR | EUR 0.02 ordinary Purchase 43 32.5190 EUR | EUR 0.02 ordinary Purchase 42 32.3800 EUR | EUR 0.02 ordinary Purchase 38 32.6310 EUR | EUR 0.02 ordinary Purchase 27 32.7000 EUR | EUR 0.02 ordinary Purchase 26 32.6600 EUR | EUR 0.02 ordinary Purchase 20 32.5242 EUR | EUR 0.02 ordinary Purchase 20 32.4600 EUR | EUR 0.02 ordinary Purchase 15 32.4400 EUR | EUR 0.02 ordinary Purchase 14 32.6800 EUR | EUR 0.02 ordinary Purchase 13 32.5505 EUR | EUR 0.02 ordinary Purchase 11 32.6100 EUR | EUR 0.02 ordinary Sale 11,687 32.9000 EUR | EUR 0.02 ordinary Sale 5,762 32.5233 EUR | EUR 0.02 ordinary Sale 3,606 32.5251 EUR | EUR 0.02 ordinary Sale 2,691 32.8628 EUR | EUR 0.02 ordinary Sale 878 32.6145 EUR | EUR 0.02 ordinary Sale 776 32.8277 EUR | EUR 0.02 ordinary Sale 519 32.8959 EUR | EUR 0.02 ordinary Sale 486 32.6483 EUR | EUR 0.02 ordinary Sale 420 32.7955 EUR | EUR 0.02 ordinary Sale 381 32.9955 EUR | EUR 0.02 ordinary Sale 332 32.4974 EUR | EUR 0.02 ordinary Sale 250 32.5879 EUR | EUR 0.02 ordinary Sale 245 32.6029 EUR | EUR 0.02 ordinary Sale 233 32.3901 EUR | EUR 0.02 ordinary Sale 219 32.5942 EUR | EUR 0.02 ordinary Sale 218 32.5400 EUR | EUR 0.02 ordinary Sale 216 32.6400 EUR | EUR 0.02 ordinary Sale 178 32.6000 EUR | EUR 0.02 ordinary Sale 164 32.6434 EUR | EUR 0.02 ordinary Sale 162 32.4200 EUR | EUR 0.02 ordinary Sale 151 32.4931 EUR | EUR 0.02 ordinary Sale 128 32.5591 EUR | EUR 0.02 ordinary Sale 113 32.5800 EUR | EUR 0.02 ordinary Sale 110 32.6300 EUR | EUR 0.02 ordinary Sale 107 32.5200 EUR | EUR 0.02 ordinary Sale 95 32.6200 EUR | EUR 0.02 ordinary Sale 84 32.5628 EUR | EUR 0.02 ordinary Sale 67 32.7200 EUR | EUR 0.02 ordinary Sale 60 32.5000 EUR | EUR 0.02 ordinary Sale 56 32.5600 EUR | EUR 0.02 ordinary Sale 56 32.5700 EUR | EUR 0.02 ordinary Sale 50 32.5014 EUR | EUR 0.02 ordinary Sale 42 32.3800 EUR | EUR 0.02 ordinary Sale 30 32.5779 EUR | EUR 0.02 ordinary Sale 27 32.7000 EUR | EUR 0.02 ordinary Sale 26 32.5100 EUR | EUR 0.02 ordinary Sale 26 32.6600 EUR | EUR 0.02 ordinary Sale 26 32.4600 EUR | EUR 0.02 ordinary Sale 23 32.7130 EUR | EUR 0.02 ordinary Sale 22 32.6100 EUR | EUR 0.02 ordinary Sale 20 32.5275 EUR | EUR 0.02 ordinary Sale 19 32.5768 EUR | EUR 0.02 ordinary Sale 18 32.6700 EUR | EUR 0.02 ordinary Sale 15 32.4400 EUR | EUR 0.02 ordinary Sale 14 32.6800 EUR | EUR 0.02 ordinary Sale 12 32.4800 EUR | EUR 0.02 ordinary Sale 4 32.5832 EUR | EUR 0.02 ordinary Sale 4 32.4700 EUR | EUR 0.02 ordinary Sale 1 32.5432 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 Opening Short 118 32.6528 EUR | EUR 0.02 ordinary SWAP Decreasing Short 19 32.5768 EUR | EUR 0.02 ordinary CFD Decreasing Short 81 32.4174 EUR | EUR 0.02 ordinary CFD Increasing Short 57 32.5280 EUR | EUR 0.02 ordinary SWAP Increasing Short 676 32.5359 EUR | EUR 0.02 ordinary SWAP Opening Short 48 32.7564 EUR | EUR 0.02 ordinary SWAP Increasing Short 344 32.7565 EUR | EUR 0.02 ordinary SWAP Increasing Short 68 32.7566 EUR | EUR 0.02 ordinary SWAP Increasing Short 519 32.5887 EUR | EUR 0.02 ordinary CFD Increasing Short 46 32.6226 EUR | EUR 0.02 ordinary SWAP Increasing Short 184 32.6619 EUR | EUR 0.02 ordinary SWAP Increasing Short 827 32.9025 EUR | EUR 0.02 ordinary SWAP Increasing Short 6,056 32.9025 EUR | EUR 0.02 ordinary SWAP Increasing Short 1,189 32.9025 EUR | EUR 0.02 ordinary SWAP Decreasing Short 439 32.6145 EUR | EUR 0.02 ordinary SWAP Increasing Short 97 32.4526 EUR | EUR 0.02 ordinary SWAP Decreasing Short 68 32.5460 EUR | EUR 0.02 ordinary SWAP Increasing Short 187 32.6019 EUR | EUR 0.02 ordinary SWAP Increasing Short 65 32.6400 EUR | EUR 0.02 ordinary SWAP Increasing Short 397 32.6309 EUR | EUR 0.02 ordinary SWAP Increasing Short 2 32.9000 EUR | EUR 0.02 ordinary SWAP Increasing Short 2,866 32.9019 EUR | EUR 0.02 ordinary SWAP Decreasing Short 5 32.9000 EUR | EUR 0.02 ordinary SWAP Decreasing Short 4,407 32.9000 EUR | EUR 0.02 ordinary SWAP Increasing Short 18 32.6200 EUR | EUR 0.02 ordinary SWAP Decreasing Short 478 32.4991 EUR | EUR 0.02 ordinary SWAP Increasing Short 404 32.6287 EUR | EUR 0.02 ordinary SWAP Increasing Short 6,052 32.6022 EUR | EUR 0.02 ordinary SWAP Decreasing Short 5,762 32.5233 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: 29 Jun 2026 | Contact name: Large Holdings Regulatory Operations | Telephone number: 020 3134 7213 |
RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END RETAKCBDDBKDKAB