Announcement PDF Australia: Perth,Western Australia USA: Houston, Texas Metallium Ltd ASX: MTM | OTCQX: MTMCF ENGAGE WITH THIS ANNOUNCEMENT ON INVESTORHUB: HERE ASX Release 21 October 2025 Metallium Backs New US–Australia Critical Minerals Agreement Metallium Limited (“Metallium” or the “Company”) (ASX: MTM; OTCQX: MTMCF) welcomes the signing of the United States–Australia Framework for Securing Supply of Critical Minerals and Rare Earths, announced in Washington DC on 20 October 2025 by President Donald J. Trump and Prime Minister Anthony Albanese1 . The landmark Framework commits both nations to mobilising at least US$1 billion in joint project financing, accelerating permitting, and supporting development of diversified, secure, and sustainable supply chains for critical minerals and rare earth elements. The initiative directly addresses Chinese dominance in the refining and processing of these materials, which are essential for defence, clean energy, semiconductor, and advanced manufacturing applications. OVERVIEW Metallium Ltd is an Australian-U.S. company investing in the United States to commercialise Flash Joule Heating (FJH) technology developed at Rice University in Houston, Texas. Through its wholly owned U.S. subsidiary, Flash Metals USA Inc., Metallium is developing a scalable processing facility in Texas that converts waste, mine tailings, and concentrates into high-purity critical metals including rare earths, gallium, indium, antimony and germanium. This facility represents one of the only near-term, non-Chinese processing solutions capable of operating at commercial scale within the United States. By combining Australian capital, U.S. technology, and local feedstocks, Metallium is building a domestic refining platform designed to supply key metals vital to clean energy, defence, and semiconductor industries. STRATEGIC CONTEXT China currently controls approximately 70 percent of global rare earth mining and more than 90 percent of processing capacity (BBC News, 2025)2 . The newly signed U.S.–Australia Framework marks a major step in rebalancing this dependency through targeted investment, permitting reform, and coordinated industrial policy. Under the Framework, the two governments will jointly identify priority projects, provide financing and offtake support, and establish new mechanisms to protect domestic markets from non-market practices. Within six months, at least US$1 billion in combined financing will be directed to qualifying projects in both countries expected to deliver refined product to allied markets. ALIGNMENT WITH THE U.S.–AUSTRALIA FRAMEWORK Of particular relevance to Metallium is Section I, Point 6 of the Framework, which explicitly recognises “Scrap” as a strategic feedstock, committing both nations to invest in minerals recycling technology and to coordinate management of critical- mineral and rare-earth scrap to support supply-chain diversification. This commitment mirrors Metallium’s U.S. program, which employs Flash Joule Heating to recover gallium, indium, germanium, and rare earth elements from electronic waste, refinery residues, and other secondary materials. Metallium’s approach creates a circular, low-emission, and scalable pathway to critical-metal recovery, directly aligned with the Framework’s objectives to strengthen allied-nation supply chains and reduce dependence on China. DELIVERING U.S. POLICY OUTCOMES Metallium’s investment and operations directly support the Trump Administration’s industrial strategy by: • Creating skilled U.S. jobs through construction and operation of the Texas demonstration plant. • Re-establishing domestic refining capacity for defence, semiconductor, and electric-vehicle supply chains. • Deploying clean, allied-nation technology that reduces reliance on Chinese-controlled refining. • Contributing to the U.S.–Australia Critical Minerals Supply Security Response Group as an active private-sector partner delivering circular solutions. 1 The White House (2025) Fact Sheet: President Donald J. Trump closes billion-dollar deals with Australia. 20 October. Available at: LINK 2 Hoskins, P. and Bicker, L., 2025, ‘China tightens export rules for crucial rare earths’. BBC News, 9 October. Available at: https://www.bbc.com/news/articles/ckgzl0nwvd7o 2 ASX: MTM | OTCQX: MTMCF Metallium Managing Director & CEO, Michael Walshe, commented: “This agreement formalises the very principles Metallium was founded on, allied-nation cooperation, technology-led resource independence, and sustainable processing within the United States. “The Framework’s recognition of scrap and recycling as strategic feedstocks validates our model of turning e-waste and tailings into secure, low-emission metal supply. Metallium is proud to represent how Australian investment and U.S. technology can deliver critical-metal independence for America and its allies.”. KEY MESSAGE Metallium is delivering exactly what Washington and Canberra have committed to achieving, a fast, practical, and scalable path to rare-earth and critical-metal independence from China. By integrating Australian capital, U.S. innovation, and domestic feedstocks, Metallium is building the first operational, commercial-scale solution capable of producing strategic materials within the United States in months, not years. This announcement has been authorised for release by the Managing Director. For further information, please contact: Michael Walshe Managing Director & CEO Metallium Ltd info@MetalliumInc.com | +61 8 6391 0112 Andrew Keys Investor Relations 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 | +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 6008 3 ASX: MTM | OTCQX: MTMCF CAUTIONARY STATEMENT REGARDING VALUES & FORWARD-LOOKING INFORMATION The figures, valuations, forecasts, estimates, opinions and projections contained herein involve elements of subjective judgment and analysis and assumption. Metallium does not accept any liability in relation to any such matters, or to inform the Recipient of any matter arising or coming to the company’s notice after the date of this document which may affect any matter referred to herein. Any opinions expressed in this material are subject to change without notice, including as a result of using different assumptions and criteria. This document may contain forward-looking statements. Forward- looking statements are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “expect”, and “intend” and statements than an event or result “may”, “will”, “should”, “could”, or “might” occur or be achieved and other similar expressions. Forward-looking information is subject to business, legal and economic risks and uncertainties and other factors that could cause actual results to differ materially from those contained in forward-looking statements. Such factors include, among other things, risks relating to property interests, the global economic climate, commodity prices, sovereign and legal risks, and environmental risks. Forward-looking statements are based upon estimates and opinions at the date the statements are made. Metallium undertakes no obligation to update these forward-looking statements for events or circumstances that occur subsequent to such dates or to update or keep current any of the information contained herein. The Recipient should not place undue reliance upon forward-looking statements. Any estimates or projections as to events that may occur in the future (including projections of revenue, expense, net income and performance) are based upon the best judgment of Metallium from information available as of the date of this document. There is no guarantee that any of these estimates or projections will be achieved. Actual results will vary from the projections and such variations may be material. Nothing contained herein is, or shall be relied upon as, a promise or representation as to the past or future. Metallium, its affiliates, directors, employees and/or agents expressly disclaim any and all liability relating or resulting from the use of all or any part of this document or any of the information contained herein.