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: 30 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: 854,893 2.39% 109,661 0.31% | (2) Cash-settled derivatives: | 121,929 0.34% 853,657 2.39% | (3) Stock-settled derivatives (including options) | and agreements to purchase/sell: 0 0.00% 0 0.00% | TOTAL: 976,822 2.73% 963,318 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 6,240 32.7400 EUR | EUR 0.02 ordinary Purchase 5,734 32.7465 EUR | EUR 0.02 ordinary Purchase 2,968 32.7263 EUR | EUR 0.02 ordinary Purchase 2,476 32.7371 EUR | EUR 0.02 ordinary Purchase 2,442 32.5508 EUR | EUR 0.02 ordinary Purchase 1,630 32.5792 EUR | EUR 0.02 ordinary Purchase 857 32.6679 EUR | EUR 0.02 ordinary Purchase 685 32.6569 EUR | EUR 0.02 ordinary Purchase 490 32.7118 EUR | EUR 0.02 ordinary Purchase 264 32.8600 EUR | EUR 0.02 ordinary Purchase 187 33.0200 EUR | EUR 0.02 ordinary Purchase 136 32.4505 EUR | EUR 0.02 ordinary Purchase 136 32.6294 EUR | EUR 0.02 ordinary Purchase 128 32.7384 EUR | EUR 0.02 ordinary Purchase 125 32.6565 EUR | EUR 0.02 ordinary Purchase 113 32.7382 EUR | EUR 0.02 ordinary Purchase 101 32.9000 EUR | EUR 0.02 ordinary Purchase 90 32.7640 EUR | EUR 0.02 ordinary Purchase 79 32.7870 EUR | EUR 0.02 ordinary Purchase 60 32.8400 EUR | EUR 0.02 ordinary Purchase 49 32.5000 EUR | EUR 0.02 ordinary Purchase 25 32.6564 EUR | EUR 0.02 ordinary Purchase 16 32.8650 EUR | EUR 0.02 ordinary Purchase 14 32.6000 EUR | EUR 0.02 ordinary Purchase 14 32.8000 EUR | EUR 0.02 ordinary Purchase 13 32.7200 EUR | EUR 0.02 ordinary Purchase 13 32.9600 EUR | EUR 0.02 ordinary Purchase 12 33.0600 EUR | EUR 0.02 ordinary Purchase 12 32.4600 EUR | EUR 0.02 ordinary Purchase 12 32.6800 EUR | EUR 0.02 ordinary Purchase 12 32.6600 EUR | EUR 0.02 ordinary Purchase 12 33.0000 EUR | EUR 0.02 ordinary Purchase 5 32.7800 EUR | EUR 0.02 ordinary Purchase 3 32.4200 EUR | EUR 0.02 ordinary Purchase 3 32.6566 EUR | EUR 0.02 ordinary Purchase 3 32.9400 EUR | EUR 0.02 ordinary Purchase 3 32.3800 EUR | EUR 0.02 ordinary Purchase 2 32.5400 EUR | EUR 0.02 ordinary Purchase 2 32.7000 EUR | EUR 0.02 ordinary Purchase 1 32.8200 EUR | EUR 0.02 ordinary Purchase 1 32.6400 EUR | EUR 0.02 ordinary Purchase 1 32.5200 EUR | EUR 0.02 ordinary Sale 5,305 32.7400 EUR | EUR 0.02 ordinary Sale 4,252 32.8681 EUR | EUR 0.02 ordinary Sale 2,968 32.7263 EUR | EUR 0.02 ordinary Sale 2,229 32.7347 EUR | EUR 0.02 ordinary Sale 1,370 32.6568 EUR | EUR 0.02 ordinary Sale 1,221 32.5508 EUR | EUR 0.02 ordinary Sale 993 32.7929 EUR | EUR 0.02 ordinary Sale 980 32.7118 EUR | EUR 0.02 ordinary Sale 779 32.7380 EUR | EUR 0.02 ordinary Sale 394 32.7452 EUR | EUR 0.02 ordinary Sale 276 32.7358 EUR | EUR 0.02 ordinary Sale 244 32.8600 EUR | EUR 0.02 ordinary Sale 242 32.6249 EUR | EUR 0.02 ordinary Sale 172 32.7117 EUR | EUR 0.02 ordinary Sale 128 32.7384 EUR | EUR 0.02 ordinary Sale 98 32.8200 EUR | EUR 0.02 ordinary Sale 84 32.8400 EUR | EUR 0.02 ordinary Sale 75 32.5717 EUR | EUR 0.02 ordinary Sale 71 32.8280 EUR | EUR 0.02 ordinary Sale 68 32.6294 EUR | EUR 0.02 ordinary Sale 51 32.9000 EUR | EUR 0.02 ordinary Sale 49 32.5000 EUR | EUR 0.02 ordinary Sale 45 32.7640 EUR | EUR 0.02 ordinary Sale 41 32.7512 EUR | EUR 0.02 ordinary Sale 39 32.8210 EUR | EUR 0.02 ordinary Sale 21 32.7014 EUR | EUR 0.02 ordinary Sale 16 32.8650 EUR | EUR 0.02 ordinary Sale 14 32.6000 EUR | EUR 0.02 ordinary Sale 14 32.8000 EUR | EUR 0.02 ordinary Sale 13 32.9600 EUR | EUR 0.02 ordinary Sale 13 32.7200 EUR | EUR 0.02 ordinary Sale 12 33.0600 EUR | EUR 0.02 ordinary Sale 12 32.6800 EUR | EUR 0.02 ordinary Sale 12 32.4600 EUR | EUR 0.02 ordinary Sale 12 33.0000 EUR | EUR 0.02 ordinary Sale 12 32.6600 EUR | EUR 0.02 ordinary Sale 5 32.7800 EUR | EUR 0.02 ordinary Sale 3 33.0200 EUR | EUR 0.02 ordinary Sale 3 32.4200 EUR | EUR 0.02 ordinary Sale 3 32.9400 EUR | EUR 0.02 ordinary Sale 3 32.3800 EUR | EUR 0.02 ordinary Sale 2 32.5400 EUR | EUR 0.02 ordinary Sale 2 32.7000 EUR | EUR 0.02 ordinary Sale 1 32.5200 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 95 32.1603 EUR | EUR 0.02 ordinary SWAP Decreasing Short 207 32.7405 EUR | EUR 0.02 ordinary CFD Decreasing Short 490 32.7092 EUR | EUR 0.02 ordinary CFD Closing Long 31 32.1400 EUR | EUR 0.02 ordinary CFD Opening Short 105 32.1400 EUR | EUR 0.02 ordinary SWAP Decreasing Short 779 32.7380 EUR | EUR 0.02 ordinary SWAP Increasing Short 125 32.6565 EUR | EUR 0.02 ordinary SWAP Increasing Short 25 32.6564 EUR | EUR 0.02 ordinary SWAP Increasing Short 3 32.6566 EUR | EUR 0.02 ordinary SWAP Increasing Short 3 32.8000 EUR | EUR 0.02 ordinary CFD Increasing Short 1,364 32.6200 EUR | EUR 0.02 ordinary CFD Closing Short 105 32.8600 EUR | EUR 0.02 ordinary SWAP Decreasing Short 71 32.8280 EUR | EUR 0.02 ordinary SWAP Increasing Short 4,677 32.7465 EUR | EUR 0.02 ordinary SWAP Increasing Short 935 32.7465 EUR | EUR 0.02 ordinary SWAP Increasing Short 122 32.7465 EUR | EUR 0.02 ordinary SWAP Decreasing Short 41 32.7512 EUR | EUR 0.02 ordinary SWAP Increasing Short 1 32.7400 EUR | EUR 0.02 ordinary SWAP Increasing Short 2 32.7400 EUR | EUR 0.02 ordinary SWAP Increasing Short 849 32.7400 EUR | EUR 0.02 ordinary SWAP Increasing Short 50 32.9000 EUR | EUR 0.02 ordinary SWAP Decreasing Short 993 32.7929 EUR | EUR 0.02 ordinary SWAP Increasing Short 184 33.0200 EUR | EUR 0.02 ordinary SWAP Decreasing Short 4,252 32.8681 EUR | EUR 0.02 ordinary SWAP Increasing Short 1,630 32.5792 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 Jul 2026 | Contact name: Large Holdings Regulatory Operations | Telephone number: 020 3134 7213 |
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