TUNGSTEN MINING NL — Capital/Financing Update 2025

Nov 6, 2025

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ASX Announcement

7th November 2025

Tungsten Mining completes U.S. OTC listing following significant North American interest

Tungsten Mining NL (ASX:TGN and OTCQB:TGNMF) ( “ TGN, ” “ Tungsten Mining, ” or “ the Company ”), is pleased to announce that it has completed its listing on the OTC (Over-TheCounter) exchange in the United States under the stock symbol TGNMF . This strategic action follows significant North American interest and is an integral part of the Company’s ongoing expansion into the global critical minerals market.

Highlights

• Tungsten Mining is now listed on the OTCQB exchange, enabling US investors to trade the Company’s shares efficiently

• Tungsten Mining has formed TUNGSTEN USA LLC to facilitate operations and investor relations locally in the United States

• A new office has been established in Denver, Colorado to support the Company’s expansion and strengthen its presence in the North American market

• Tungsten Mining’s Directors will be travelling to the US later this month to engage with potential investors, financial institutions and other stakeholders

Tungsten Mining is committed to delivering critical minerals to international markets from its globally significant Mt. Mulgine deposit in Western Australia. Tungsten is recognised by the U.S. Department of Defense as a critical mineral due to its essential role in defence, aerospace and clean energy technologies, and by providing North American investors direct access to an Australian-based tungsten company, the business is placing itself within a broader U.S. policy of building of strategic partnerships with reliable producers in secure jurisdictions.

Tungsten Mining Chairman Gary Lyons commented:

“ Tungsten Mining is pleased to have completed its listing on the OTC exchange. Our recently released Mount Mulgine scoping study confirms the significance of the asset, its connection to key infrastructure, and its proximity to the regional hub of Geraldton in Western Australia’s Murchison region. We look forward to engaging with our new US investor base to communicate this value, and remain committed to meeting the growing demand for critical minerals while delivering sustainable value to our stakeholders.”

ENDS

For further information: Teck Wong Gary Lyons Chief Executive Officer Chairman Ph: +61 8 9486 8492 Ph: +61 8 9486 8492 E: teck@tungstenmining.com E: gary@garylyons.com.au

This ASX announcement was authorised for release by the board of Tungsten Mining NL.

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About Tungsten Mining NL

Australian tungsten developer, Tungsten Mining NL is an Australian-based resources company listed on the Australian Securities Exchange (ASX:TGN). Its prime focus is the exploration and development of tungsten projects in Australia.

Through exploration and acquisition, the Company has established a globally significant tungsten resource inventory in its portfolio of advanced mineral projects across Australia. This provides a platform for the Company to become a major player within the global primary tungsten market through the development of low-cost tungsten concentrate production.

About tungsten

Tungsten (chemical symbol W), occurs naturally on Earth, not in its pure form but as a constituent of other minerals, only two of which support commercial extraction and processing - wolframite ((Fe, Mn) WO4) and scheelite (CaWO4).

Tungsten also has the highest melting point of all elements except carbon – around 3400°C - giving it excellent high temperature mechanical properties and the lowest expansion coefficient of all metals. It is a metal of considerable strategic importance, essential to modern industrial development (across aerospace and defence, electronics, automotive, extractive and construction sectors) with uses in cemented carbides, high-speed steels and super alloys, tungsten mill products and chemicals.

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