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: 07 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: 904,783 2.53% 108,145 0.30% | (2) Cash-settled derivatives: | 113,715 0.32% 890,620 2.49% | (3) Stock-settled derivatives (including options) | and agreements to purchase/sell: 0 0.00% 0 0.00% | TOTAL: 1,018,498 2.85% 998,765 2.79% | (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 26,368 32.5400 EUR | EUR 0.02 ordinary Purchase 12,888 32.9796 EUR | EUR 0.02 ordinary Purchase 9,636 32.8605 EUR | EUR 0.02 ordinary Purchase 5,233 32.7857 EUR | EUR 0.02 ordinary Purchase 5,153 32.7027 EUR | EUR 0.02 ordinary Purchase 3,344 32.5465 EUR | EUR 0.02 ordinary Purchase 2,193 32.9530 EUR | EUR 0.02 ordinary Purchase 2,064 32.5411 EUR | EUR 0.02 ordinary Purchase 1,160 32.5334 EUR | EUR 0.02 ordinary Purchase 1,034 33.0112 EUR | EUR 0.02 ordinary Purchase 639 32.8604 EUR | EUR 0.02 ordinary Purchase 572 33.3400 EUR | EUR 0.02 ordinary Purchase 345 32.7400 EUR | EUR 0.02 ordinary Purchase 220 33.1200 EUR | EUR 0.02 ordinary Purchase 196 33.4600 EUR | EUR 0.02 ordinary Purchase 178 33.1638 EUR | EUR 0.02 ordinary Purchase 155 33.1921 EUR | EUR 0.02 ordinary Purchase 147 33.1600 EUR | EUR 0.02 ordinary Purchase 132 33.1000 EUR | EUR 0.02 ordinary Purchase 130 33.4000 EUR | EUR 0.02 ordinary Purchase 105 33.0600 EUR | EUR 0.02 ordinary Purchase 103 33.1699 EUR | EUR 0.02 ordinary Purchase 50 33.0544 EUR | EUR 0.02 ordinary Purchase 29 33.1800 EUR | EUR 0.02 ordinary Purchase 27 32.8429 EUR | EUR 0.02 ordinary Purchase 25 33.1142 EUR | EUR 0.02 ordinary Purchase 22 33.2000 EUR | EUR 0.02 ordinary Purchase 22 33.1900 EUR | EUR 0.02 ordinary Purchase 22 32.8200 EUR | EUR 0.02 ordinary Purchase 20 32.9600 EUR | EUR 0.02 ordinary Purchase 10 32.7800 EUR | EUR 0.02 ordinary Purchase 10 33.4800 EUR | EUR 0.02 ordinary Purchase 10 33.3000 EUR | EUR 0.02 ordinary Purchase 10 32.8400 EUR | EUR 0.02 ordinary Purchase 10 33.0200 EUR | EUR 0.02 ordinary Purchase 2 33.1566 EUR | EUR 0.02 ordinary Sale 22,698 32.5400 EUR | EUR 0.02 ordinary Sale 10,466 32.7857 EUR | EUR 0.02 ordinary Sale 6,181 32.9476 EUR | EUR 0.02 ordinary Sale 5,153 32.7027 EUR | EUR 0.02 ordinary Sale 4,118 32.5380 EUR | EUR 0.02 ordinary Sale 2,068 33.0112 EUR | EUR 0.02 ordinary Sale 2,012 32.9451 EUR | EUR 0.02 ordinary Sale 1,927 33.1896 EUR | EUR 0.02 ordinary Sale 854 32.6700 EUR | EUR 0.02 ordinary Sale 791 32.8122 EUR | EUR 0.02 ordinary Sale 631 32.7400 EUR | EUR 0.02 ordinary Sale 597 33.0594 EUR | EUR 0.02 ordinary Sale 542 32.8318 EUR | EUR 0.02 ordinary Sale 483 33.1200 EUR | EUR 0.02 ordinary Sale 286 33.3400 EUR | EUR 0.02 ordinary Sale 235 33.1297 EUR | EUR 0.02 ordinary Sale 184 32.6092 EUR | EUR 0.02 ordinary Sale 179 33.2470 EUR | EUR 0.02 ordinary Sale 178 33.1638 EUR | EUR 0.02 ordinary Sale 131 33.2053 EUR | EUR 0.02 ordinary Sale 107 33.0200 EUR | EUR 0.02 ordinary Sale 100 33.0544 EUR | EUR 0.02 ordinary Sale 98 33.4600 EUR | EUR 0.02 ordinary Sale 89 33.1600 EUR | EUR 0.02 ordinary Sale 66 33.1000 EUR | EUR 0.02 ordinary Sale 53 32.7762 EUR | EUR 0.02 ordinary Sale 52 33.0650 EUR | EUR 0.02 ordinary Sale 49 32.7409 EUR | EUR 0.02 ordinary Sale 49 32.8331 EUR | EUR 0.02 ordinary Sale 37 33.0151 EUR | EUR 0.02 ordinary Sale 29 33.1800 EUR | EUR 0.02 ordinary Sale 22 32.8200 EUR | EUR 0.02 ordinary Sale 22 33.2000 EUR | EUR 0.02 ordinary Sale 20 32.9600 EUR | EUR 0.02 ordinary Sale 12 33.2033 EUR | EUR 0.02 ordinary Sale 10 33.3000 EUR | EUR 0.02 ordinary Sale 10 32.7800 EUR | EUR 0.02 ordinary Sale 10 32.8400 EUR | EUR 0.02 ordinary Sale 2 33.0600 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 60 33.1603 EUR | EUR 0.02 ordinary SWAP Decreasing Short 53 32.7763 EUR | EUR 0.02 ordinary SWAP Decreasing Short 72 32.8972 EUR | EUR 0.02 ordinary CFD Decreasing Short 1,876 32.5747 EUR | EUR 0.02 ordinary CFD Decreasing Short 4,879 32.9189 EUR | EUR 0.02 ordinary SWAP Decreasing Long 286 33.3426 EUR | EUR 0.02 ordinary SWAP Decreasing Short 4,118 32.5380 EUR | EUR 0.02 ordinary SWAP Increasing Short 2,064 32.5411 EUR | EUR 0.02 ordinary SWAP Increasing Short 3,139 32.5465 EUR | EUR 0.02 ordinary SWAP Increasing Short 95 32.5465 EUR | EUR 0.02 ordinary SWAP Increasing Short 110 32.5465 EUR | EUR 0.02 ordinary SWAP Decreasing Short 184 32.6092 EUR | EUR 0.02 ordinary SWAP Increasing Short 157 33.0870 EUR | EUR 0.02 ordinary SWAP Decreasing Short 1,927 33.1896 EUR | EUR 0.02 ordinary SWAP Increasing Short 12,888 32.9796 EUR | EUR 0.02 ordinary SWAP Decreasing Short 37 33.0151 EUR | EUR 0.02 ordinary SWAP Increasing Short 1,725 32.5400 EUR | EUR 0.02 ordinary SWAP Decreasing Short 287 33.1180 EUR | EUR 0.02 ordinary SWAP Increasing Short 4,320 32.5400 EUR | EUR 0.02 ordinary SWAP Increasing Short 5 32.5400 EUR | EUR 0.02 ordinary SWAP Increasing Short 126 33.0826 EUR | EUR 0.02 ordinary SWAP Decreasing Short 56 33.1200 EUR | EUR 0.02 ordinary SWAP Increasing Short 66 33.1000 EUR | EUR 0.02 ordinary SWAP Decreasing Short 776 33.1027 EUR | EUR 0.02 ordinary SWAP Decreasing Short 791 32.8122 EUR | EUR 0.02 ordinary SWAP Increasing Short 103 33.1699 EUR | EUR 0.02 ordinary SWAP Decreasing Short 6,013 32.9476 EUR | EUR 0.02 ordinary SWAP Increasing Short 9,636 32.8605 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: 08 Jul 2026 | Contact name: Large Holdings Regulatory Operations | Telephone number: 020 3134 7213 |
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