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: 16 Jul 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: 927,662 2.58% 110,156 0.31% | (2) Cash-settled derivatives: | 114,400 0.32% 913,540 2.54% | (3) Stock-settled derivatives (including options) | and agreements to purchase/sell: 0 0.00% 0 0.00% | TOTAL: 1,042,062 2.90% 1,023,696 2.85% | (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 6,903 31.0782 EUR | EUR 0.02 ordinary Purchase 4,878 30.7298 EUR | EUR 0.02 ordinary Purchase 4,725 30.8200 EUR | EUR 0.02 ordinary Purchase 3,000 31.3289 EUR | EUR 0.02 ordinary Purchase 2,242 30.8212 EUR | EUR 0.02 ordinary Purchase 2,231 30.8210 EUR | EUR 0.02 ordinary Purchase 1,802 30.8168 EUR | EUR 0.02 ordinary Purchase 1,781 30.9172 EUR | EUR 0.02 ordinary Purchase 1,326 31.0140 EUR | EUR 0.02 ordinary Purchase 1,313 31.4332 EUR | EUR 0.02 ordinary Purchase 1,245 31.1198 EUR | EUR 0.02 ordinary Purchase 1,240 30.6561 EUR | EUR 0.02 ordinary Purchase 1,151 30.8284 EUR | EUR 0.02 ordinary Purchase 1,052 30.9317 EUR | EUR 0.02 ordinary Purchase 959 30.8093 EUR | EUR 0.02 ordinary Purchase 562 31.0004 EUR | EUR 0.02 ordinary Purchase 448 31.5292 EUR | EUR 0.02 ordinary Purchase 369 32.1952 EUR | EUR 0.02 ordinary Purchase 361 31.6000 EUR | EUR 0.02 ordinary Purchase 197 30.6310 EUR | EUR 0.02 ordinary Purchase 176 32.2500 EUR | EUR 0.02 ordinary Purchase 118 30.5818 EUR | EUR 0.02 ordinary Purchase 104 30.5700 EUR | EUR 0.02 ordinary Purchase 72 30.7733 EUR | EUR 0.02 ordinary Purchase 71 32.2000 EUR | EUR 0.02 ordinary Purchase 55 30.7800 EUR | EUR 0.02 ordinary Purchase 48 31.1000 EUR | EUR 0.02 ordinary Purchase 28 32.0000 EUR | EUR 0.02 ordinary Purchase 13 30.6492 EUR | EUR 0.02 ordinary Purchase 3 30.9866 EUR | EUR 0.02 ordinary Sale 22,626 30.9548 EUR | EUR 0.02 ordinary Sale 6,903 31.0782 EUR | EUR 0.02 ordinary Sale 4,736 31.1786 EUR | EUR 0.02 ordinary Sale 4,614 30.8200 EUR | EUR 0.02 ordinary Sale 4,360 30.8181 EUR | EUR 0.02 ordinary Sale 3,604 30.8168 EUR | EUR 0.02 ordinary Sale 2,626 31.4332 EUR | EUR 0.02 ordinary Sale 2,187 30.8261 EUR | EUR 0.02 ordinary Sale 1,345 31.0138 EUR | EUR 0.02 ordinary Sale 1,290 30.6046 EUR | EUR 0.02 ordinary Sale 1,245 31.1198 EUR | EUR 0.02 ordinary Sale 544 31.0150 EUR | EUR 0.02 ordinary Sale 528 30.8267 EUR | EUR 0.02 ordinary Sale 517 31.1184 EUR | EUR 0.02 ordinary Sale 423 31.0558 EUR | EUR 0.02 ordinary Sale 395 31.1724 EUR | EUR 0.02 ordinary Sale 354 30.8176 EUR | EUR 0.02 ordinary Sale 273 30.7800 EUR | EUR 0.02 ordinary Sale 254 30.5600 EUR | EUR 0.02 ordinary Sale 118 30.5818 EUR | EUR 0.02 ordinary Sale 224 31.5292 EUR | EUR 0.02 ordinary Sale 197 30.6800 EUR | EUR 0.02 ordinary Sale 197 30.6310 EUR | EUR 0.02 ordinary Sale 176 32.2500 EUR | EUR 0.02 ordinary Sale 146 32.0000 EUR | EUR 0.02 ordinary Sale 134 31.9000 EUR | EUR 0.02 ordinary Sale 120 31.9100 EUR | EUR 0.02 ordinary Sale 113 31.6000 EUR | EUR 0.02 ordinary Sale 104 30.5700 EUR | EUR 0.02 ordinary Sale 55 30.7809 EUR | EUR 0.02 ordinary Sale 37 31.3896 EUR | EUR 0.02 ordinary Sale 24 31.1000 EUR | EUR 0.02 ordinary Sale 18 30.8755 EUR | EUR 0.02 ordinary Sale 7 30.8867 EUR | EUR 0.02 ordinary Sale 2 30.6200 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 423 31.0558 EUR | EUR 0.02 ordinary CFD Increasing Short 100 32.1800 EUR | EUR 0.02 ordinary CFD Increasing Short 113 31.6025 EUR | EUR 0.02 ordinary CFD Closing Short 73 31.4332 EUR | EUR 0.02 ordinary CFD Opening Long 1,240 31.4332 EUR | EUR 0.02 ordinary CFD Increasing Short 3 30.9866 EUR | EUR 0.02 ordinary SWAP Increasing Long 108 30.5575 EUR | EUR 0.02 ordinary SWAP Decreasing Short 4,360 30.8181 EUR | EUR 0.02 ordinary SWAP Increasing Short 2,242 30.8212 EUR | EUR 0.02 ordinary SWAP Opening Long 1,873 30.9580 EUR | EUR 0.02 ordinary SWAP Decreasing Short 307 30.9998 EUR | EUR 0.02 ordinary CFD Decreasing Short 1,812 30.8143 EUR | EUR 0.02 ordinary CFD Closing Long 1,240 30.6561 EUR | EUR 0.02 ordinary CFD Decreasing Short 18 30.8755 EUR | EUR 0.02 ordinary SWAP Decreasing Short 7 30.8867 EUR | EUR 0.02 ordinary SWAP Increasing Short 4,878 30.7298 EUR | EUR 0.02 ordinary SWAP Increasing Short 72 30.7733 EUR | EUR 0.02 ordinary SWAP Decreasing Short 517 31.1184 EUR | EUR 0.02 ordinary SWAP Increasing Short 2,231 30.8210 EUR | EUR 0.02 ordinary SWAP Increasing Short 24 31.1000 EUR | EUR 0.02 ordinary SWAP Decreasing Short 27 32.0000 EUR | EUR 0.02 ordinary SWAP Decreasing Short 254 31.9047 EUR | EUR 0.02 ordinary SWAP Increasing Short 224 31.5292 EUR | EUR 0.02 ordinary SWAP Increasing Short 135 31.6000 EUR | EUR 0.02 ordinary SWAP Decreasing Short 218 30.7800 EUR | EUR 0.02 ordinary SWAP Decreasing Short 197 30.6800 EUR | EUR 0.02 ordinary SWAP Increasing Short 1,781 30.9172 EUR | EUR 0.02 ordinary SWAP Decreasing Short 22,626 30.9548 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: 17 Jul 2026 | Contact name: Large Holdings Regulatory Operations | Telephone number: 020 3134 7213 |
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