Announcement PDF Australia: Perth, Western Australia USA: Houston, Texas METALLIUM LIMITED ASX: MTM | OTCQX: MTMCF | OTCQX ADR: MTLMY ENGAGE WITH THIS ANNOUNCEMENT ON INVESTORHUB: HERE ASX Release 22 May 2026 Cleansing Notice – Section 708A(5)(e) and 708A(6) Metallium Limited (“Metallium” or the “Company”) (ASX: MTM; OTCQX: MTMCF; OTCQX ADR: MTLMY) wishes to advise that on 21 May 2026 it issued 1,407,143 ordinary fully paid shares (Shares) at a deemed issue price of $0.51. 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 lodged on 22 May 2026 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 Company Secretary 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 2 ASX: MTM | OTCQX: MTMCF and MTLMY (ADR) 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 | +61 8 6391 0112 Investor Hub: investorhub.metalliuminc.com 𝕏 x.com/Metallium_MTM www.linkedin.com/company/metalliumltd USA Office: 12 Greenway Plaza, Suite 1100, Houston, Texas USA 77046 Australia Office: Unit 4, 22 Railway Road, Subiaco, Western Australia