Announcement PDF Metallium Ltd (ACN 645 885 463) ASX: MTM | OTCQX: MTMCF Australia: Perth, Western Australia USA: Houston, Texas ASX Release 18 July 2025 Change of Company Name to METALLIUM LIMITED Metallium Limited (“Metallium” or the “Company”) (ASX: MTM; OTCQX: MTMCF) formerly MTM Critical Metals Limited, is pleased to announce that, following shareholder approval at the general meeting held on 30 June 2025, the Company’s name has officially been changed in the records of the Australian Securities and Investments Commission (ASIC) and will change officially on the Australian Securities Exchange (ASX) from the commencement of trading on Tuesday 22nd July 2025. The Company’s ASX trading ticker will remain as MTM. The new name signals the Company’s intention to take advantage of the opportunity of becoming a U.S.-centric industrial technology platform focused on the recovery of strategic metals from waste and ore using its exclusive FJH technology. Metallium Managing Director & CEO, Michael Walshe, commented: “The transition to the name Metallium Ltd marks a defining moment in our company’s evolution and is appropriate to reflect the new focus of our Company. The name Metallium combines ‘Metal’ with the suffix ‘-ium’ - shared by many of our target elements like gallium, germanium, dysprosium, terbium, neodymium, praseodymium, and reflecting our focus on recovering strategic metals from waste and ore. It also allows us to seamlessly retain our existing ASX stock ticker, MTM (MeTalliuM).” “This new identity reflects our shift from a pure mineral exploration focus as MTM Critical Metals to a pioneering role in the processing of critical minerals using the transformative Flash Joule Heating (FJH) technology. As we unlock the value of previously difficult to treat resources, Metallium represents not just what we do, but what we’re enabling for the global clean energy future.” 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