Announcement PDF ASX Release 4 September 2026 For more information, Investors: James Durrant , Managing Director P +61 (0) 8 6383 6593 please contact: Engage and Contribute: Investor Hub W ree.investorhub.com/welcome RareX Limited RareX HQ P +61 (0) 8 6383 6593 RareX Limited ASX:REE , REEO Level 1, 1 Alvan Street E info@rarex.com.au @rarex_asx ABN: 65 105 578 756 Subiaco WA 6008 ree.investorhub.com/welcome Australia rarex.com.au Late Lodgement of Appendices 3Y RareX Limited (ASX: REE, REEO – RareX, or the Company) attaches Appendices 3Y "Change of Director’s Interest Notice" for James Durrant and Danny Goeman. The Appendices 3Y relate to the lapse of unvested performance rights which occurred on 10 February 2026 (Mr Durrant) and unlisted options which occurred on 1 March 2026 (Mr Goeman). In relation to the late lodgement of these notices, the Company provides the following information in accordance with ASX Listing Rules 3.19A and 3.19B, and ASX Compliance requirements: • The Appendices 3Y were lodged outside of the 5-business-day window required under ASX Listing Rule 3.19A.2 due to an administrative oversight. As the transaction involved the automatic lapse of unlisted options and performance rights rather than an active on-market trade or a change in beneficial ownership, the administrative process to trigger the corporate notification was inadvertently missed. The oversight was identified during a routine internal reconciliation, and the corrective notices were prepared and lodged immediately thereafter. • The Company and its Directors remain fully aware of their continuous disclosure responsibilities under the Corporations Act 2001 (Cth) and ASX Listing Rules. RareX Limited has a robust Securities Trading Policy and established disclosure frameworks in place, which include: • Letter Agreements: Contractual agreements signed by all Directors upon appointment requiring prompt disclosure to the Company Secretary of any changes to their notifiable interests. • Regular Monitoring: Board updates and standing agenda items to ensure director interests and expiring unlisted securities are systematically cross-referenced. • The Company considers its existing disclosure arrangements and policies to be adequate and generally well-enforced. This late lodgement represents an isolated administrative incident. However, following this review, the Company has enhanced its internal corporate calendar tracking mechanisms to automatically trigger notifications to the Company Secretary ahead of any upcoming option expiry milestones to guarantee future compliance. Yours faithfully, Oonagh Malone Company Secretary RareX Limited About RareX Limited – ASX: REE RareX is a critical minerals company specialising in rare earths and gallium, niobium as well as scandium in hard rock carbonatites. The exploration focus of the business is the Khaleesi Project in the East Yilgarn which is a district-scale, elevated gallium & niobium, alkaline intrusive complex, and the Piper Project bulls-eye anomaly in the northern territory along trend from both Nolans Bore and the Luni niobium deposit. The Company’s engineering focus is on the metallurgy of the Cummins Range Project - a carbonatite hosted rare earths and phosphate project, containing magnet grade rare earths and battery grade phosphates, and substantial gallium and scandium. RareX have formed a consortium partnership with Iluka and have made a proposal for the Mrima Hill rare earth project in Kenya. RareX maintains material investments in Kincora Copper (ASX:KCC), Cosmos Exploration (ASX:C1X), which recently merged with EAU Lithium, and Canada Rare Earth Corporation (LL.V). For further information on the Company and its projects visit www.rarex.com.au * The forecast financial information was released on 22 August 2023. The Company confirms that the material assumptions underpinning the production target and forecast financial information continue to apply and have not materially changed RareX Limited RareX HQ P +61 (0) 8 6383 6593 RareX Limited ASX:REE , REEO Level 1, 1 Alvan Street E info@rarex.com.au @rarex_asx ABN: 65 105 578 756 Subiaco WA 6008 ree.investorhub.com/welcome Australia rarex.com.au Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 1 Rule 3.19A.2 Appendix 3Y Change of Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/09/01 Amended 01/01/11 Name of entity RareX Limited ABN 65 105 578 756 We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act. Name of Director James Durrant Date of last notice 30 January 2026 Part 1 - Change of director’s relevant interests in securities In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part. Direct or indirect interest Indirect Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest. See below Date of change 10 February 2026 No. of securities held prior to change Ms Toni Louise Gianatti – spouse of Mr Durrant • 5,181,749 ordinary shares • 2,000,000 performance rights vesting on positive PFS for Cummins Range and 24 months service expiring 10 February 2026 • 909,091 ordinary shares • 454,545 quoted options exercisable at $0.035 expiring 22 October 2028 Sibon Legacy Pty Ltd as trustee for the Durrant Family Trust – Ms Gianatti is a director and shareholder • 5,000,000 ordinary shares • 15,000,000 unquoted options exercisable at $0.018 and expiring 27 December 2027 • 15,000,000 unquoted options exercisable at $0.046 and expiring 13 October 2028 • 15,000,000 performance rights vesting upon the grant of a mining licence in respect of the Mrima Hill rare earth-niobium phosphate manganese project in Kenya to an entity in which the Company has direct or indirect equity interest • 15,000,000 performance rights vesting on the Company’s Shares achieving a volume weighted average market price over 15 consecutive trading days of at least $0.05 Class Performance rights vesting on positive PFS for Cummins Range and 24 months service expiring 10 February 2026 Number acquired Nil Number disposed 2,000,000 Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 2 Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation Nil No. of securities held after change Ms Toni Louise Gianatti – spouse of Mr Durrant • 5,181,749 ordinary shares • 2,000,000 performance rights vesting on positive PFS for Cummins Range and 24 months service expiring 10 February 2026 • 909,091 ordinary shares • 454,545 quoted options exercisable at $0.035 expiring 22 October 2028 Sibon Legacy Pty Ltd as trustee for the Durrant Family Trust – Ms Gianatti is a director and shareholder • 5,000,000 ordinary shares • 15,000,000 unquoted options exercisable at $0.018 and expiring 27 December 2027 • 15,000,000 unquoted options exercisable at $0.046 and expiring 13 October 2028 • 15,000,000 performance rights vesting upon the grant of a mining licence in respect of the Mrima Hill rare earth-niobium phosphate manganese project in Kenya to an entity in which the Company has direct or indirect equity interest • 15,000,000 performance rights vesting on the Company’s Shares achieving a volume weighted average market price over 15 consecutive trading days of at least $0.05 Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back Lapse of performance rights unvested Part 2 – Change of director’s interests in contracts Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part. Detail of contract N/A Nature of interest N/A Name of registered holder (if issued securities) N/A Date of change N/A No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed N/A Interest acquired N/A Interest disposed N/A Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation N/A Interest after change N/A Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 3 Part 3 – +Closed period Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required? N/A If so, was prior written clearance provided to allow the trade to proceed during this period? N/A If prior written clearance was provided, on what date was this provided? N/A Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 1 Rule 3.19A.2 Appendix 3Y Change of Director’s Interest Notice Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. Introduced 30/09/01 Amended 01/01/11 Name of entity RareX Limited ABN 65 105 578 756 We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act. Name of Director Danny Goeman Date of last notice 16 October 2025 Part 1 - Change of director’s relevant interests in securities In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part. Direct or indirect interest Direct Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest. Date of change 1 March 2026 No. of securities held prior to change 555,556 ordinary shares 4,500,000 unquoted options exercisable at $0.10 each and expiring 1 March 2026 6,000,000 unquoted options exercisable at $0.018 and expiring 27 December 2027 8,000,000 unquoted options exercisable at $0.046 and expiring 13 October 2028 Class Unquoted options exercisable at $0.10 each and expiring 1 March 2026 Number acquired Nil Number disposed 4,500,000 Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation Nil No. of securities held after change 555,556 ordinary shares 6,000,000 unquoted options exercisable at $0.018 and expiring 27 December 2027 8,000,000 unquoted options exercisable at $0.046 and expiring 13 October 2028 Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. Appendix 3Y Page 2 01/01/2011 Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back Lapse of unlisted options unexercised Part 2 – Change of director’s interests in contracts Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part. Detail of contract N/A Nature of interest N/A Name of registered holder (if issued securities) N/A Date of change N/A No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed N/A Interest acquired N/A Interest disposed N/A Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation N/A Interest after change N/A Part 3 – +Closed period Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required? N/A If so, was prior written clearance provided to allow the trade to proceed during this period? N/A If prior written clearance was provided, on what date was this provided? N/A