Announcement PDF Metallium Ltd (ACN 645 885 463) ASX: MTM | OTCQX: MTMCF Australia: Perth, Western Australia USA: Houston, Texas ASX Release 8 September 2025 Cleansing Notice – Section 708A(5)(e) and 708A(6) Metallium Limited (“Metallium” or the “Company”) (ASX: MTM; OTCQX: MTMCF) wishes to advise that it has issued 690,000 ordinary fully paid shares (Shares) (the Securities) upon the conversion of unlisted options without disclosure under Part 6D.2 of the Corporations Act as follows: ASX Security Code MTMAT No of Options exercised 690,000 No of shares issued 690,000 Exercise Price A$0.12 Proceeds from Exercise $82,800 This notice is given by the Company under section 708A(5)(e) and 708A(6) of the Corporations Act 2001 (Cth) (Act). The Act restricts the on-sale of securities issued without disclosure unless the sale is exempt under section 708 or 708A of the Act. By giving this notice, the Shares detailed in the Appendix 2A announced on 8 September 2025 will fall within the exemption in section 708A(5) of the Act. In accordance with Section 708A(6) of the Act, the Company gives notice under section 708A(5)(e) of the Act that: (a) the Company issued the Securities without disclosure to investors under Part 6D.2 of the Act; (b) this notice is given pursuant to section 708A(5)(e) of the Act; (c) as at the date of this notice, the Company has complied with: i. the provisions of Chapter 2M of the Act as they apply to the Company; and ii. sections 674 and 674A of the Act; and (d) as at the date of this notice, there is no information: i. that has been excluded from a continuous disclosure notice in accordance with the ASX Listing Rules; and ii. that investors and their professional advisors would reasonably require for the purpose of making an informed assessment of: A. the assets and liabilities, financial position and performance, profits and losses and prospects of the Company; or B. the rights and liabilities attaching to the Shares. This announcement has been authorised for release by the Board of Directors. ENGAGE WITH THIS ANNOUNCEMENT ON INVESTORHUB: HERE ASX: MTM | OTCQX: MTMCF For further information, please contact: Michael Walshe Managing Director & CEO Metallium Ltd info@MetalliumInc.com | +61 8 6391 0112 Andrew Keys Investor Relations & Corporate Communications Keys Thomas Associates Andrew.keys@keysthomas.com | +61 400 400 380 ABOUT METALLIUM LIMITED Metallium Ltd (ABN 27 645 885 463), is pioneering a low-carbon, high-efficiency approach to recovering critical and precious metals from mineral concentrates and high-grade waste streams. The company’s patented Flash Joule Heating (FJH) technology enables the extraction of high-value materials—including gallium, germanium, antimony, rare earth elements, and gold—from feedstocks such as refinery scrap, e-waste, and monazite. Aligned with U.S. strategic supply chain objectives, Metallium has recently secured its first commercial site in Texas via its wholly owned subsidiary, Flash Metals USA Inc., marking a major step toward near-term production and revenue generation. To learn more, visit: Website: metalliuminc.com Contact: info@metalliuminc.com Investor Hub: investorhub.metalliuminc.com 𝕏 x.com/Metallium_MTM USA Office: 12 Greenway Plaza, Suite 1100, Houston, Texas USA 77046 Australia Office: Unit 4, 22 Railway Road, Subiaco, Western | +61 8 6391 0112 www.linkedin.com/company/metalliumltd 2