Announcement PDF ASX Announcement 24 November 2025 Pinnacle Minerals Ltd Issued Capital Australian Registered Office Directors ACN: 655 033 677 ASX: PIM 115,563,317 Shares 59,987,507 Options Unit 6, Level 1, 389 Oxford Street Mount Hawthorn WA 6016 T: + 61 8 9426 0666 E: admin@pinnacleminerals.com.au WILLIAM WITHAM –-Executive Chairman LINCOLN LIU – Non-Executive Director STEPHEN ROSS – Non-Executive Director www.pinnacleminerals.com.au PINNACLE SUCCESSFULLY COMMENCES TRADING ON OTCQB TO EXPAND U.S. INVESTOR ACCESS TRADING ON OTCQB UNDER TICKER CODE: PIMLF Pinnacle Minerals Limited (ASX: PIM; OTCQB: PIMLF) (“Pinnacle” or “the Company”) is pleased to announce it has commenced trading on the OTCQB® Market in the United States under the ticker “PIMLF”. The OTCQB listing follows the Company’s announcement on 16 October 2025 of its intention to acquire eight Antimony, Gold and Silver projects in highly prospective regions of Idaho and Washington state in USA. The quotation on the premium tier of the U.S. OTC Markets allows Pinnacle to provide North American investors with easier access to trade the Company’s shares in their local market and time zone. The Board considers the additional quotation an opportunity to increase the Company’s visibility and broaden its global investor base. Highlights • Successfully commenced trading on the OTCQB® under the ticker symbol PIMLF • Enables broker-dealer support (via Blue Sky compliance), allowing the Company’s shares to be legally offered and recommended to both retail and institutional investors across a broad range of U.S. states • Offers exposure to one of the most liquid equity markets that includes well-known U.S.- listed critical metals companies such as MP Materials (NYSE: MP), Perpetua Resources Corp. (NASDAQ: PPTA), Critical Metals Corp. (NASDAQ: CRML), and NioCorp Developments (NASDAQ: NB) • The OTCQB listing provides improved access for U.S. investors. PIM’s Thunder Mountain Gold project is located near, and is in the same geological corridor as, Perpetua Resources’ Stibnite Antimony-Gold Mine, a project familiar to many U.S. critical minerals investors • Non-dilutive dual-listing: no capital raising or new share issuance required • Strengthens the Company’s U.S. profile for potential Department of War (DoW) funding programs • Increases visibility for inclusion in U.S. government fast-track permitting initiatives • Opens PIM up to potential U.S. corporate opportunities, such as acquisitions, mergers, and joint ventures with U.S. based groups • The U.S. listing comes at a time of heightened investor interest in antimony (fueled by its role in the defense, semiconductor, and clean energy sectors) as well as elevated antimony, gold and silver prices www.pinnacleminerals.com.au 2 About OTCQB The OTCQB is a premium tier of the OTC Markets Group, designed for established and developing U.S. and international companies. To qualify, companies must meet financial, governance, and compliance standards. PIM’s listing aligns with its strategy to grow its presence in the U.S. and engage with a market supportive of domestic critical minerals projects. The Company’s primary listing and quotation remains on the ASX. The OTCQB quotation does not involve the issuance of any new securities and does not change the total number of shares on issue. With trading active on both the ASX and OTCQB, and with initial exploration underway at the U.S. projects, PIM is well-positioned to benefit from rising investor demand for exposure to the critical minerals sector. Other notable ASX-listed companies that have dual listed in the US include Resolution Minerals Limited (ASX:RML), Dateline Resources Ltd (ASX:DTR), MTM Critical Metals Ltd (ASX:MTM), Locksley Resources Ltd (ASX:LKY), European Lithium (ASX:EUR), Challenger Gold Ltd (ASX:CEL) and Sayona Mining Ltd (ASX:SYA). This announcement has been authorised for release by the board. END About Pinnacle Minerals Pinnacle Minerals Ltd (ASX: PIM) is a technology minerals exploration company focused on creating shareholder value through the discovery and development of high-quality battery and critical minerals projects in the United States, Canada, Western Australia, and South Australia. The Company’s U.S. projects are located in one of North America’s most prospective critical minerals regions, near Perpetua Resources’ world-class Stibnite Gold-Antimony Project. Pinnacle also holds assets in James Bay, Quebec, proximal to the Adina Lithium Project (ASX: WR1), and in Australia, the Company’s exploration assets are prospective for rare earth elements (SA) and heavy mineral sands (WA). For further information, please contact: Executive Chairman William Witham Pinnacle Minerals Limited E: admin@pinnacleminerals.com.au T: +61 417 097 172