Tambourah Metals Uncovers High-Grade Antimony Discovery at Australian Project

Tambourah Metals Ltd-TMB-TMB letters in desert landscape.

Tambourah Metals Ltd

  • ASX Code: TMB
  • Market Cap: $3,530,161
  • Shares On Issue (SOI): 147,090,046
  • Cash: $1,819,000 (as of 31 March 2025)
  • High-Grade Antimony Discovery Puts Tambourah Metals on Critical Minerals Map

    Tambourah Metals Ltd (ASX: TMB) has confirmed exceptional grades of antimony, silver, and copper at its Speewah North project, strategically positioning the company in the booming critical minerals sector as antimony prices have surged from US$12,000 to US$60,000 per tonne.

    Initial Sampling Confirms Outstanding High-Grade Results

    Initial rock sampling at Tambourah's Speewah North project has delivered impressive assay results from the 6km long Chapman-Catto's corridor, including:

    • 4.54% antimony in rock samples
    • 517 ppm silver (equivalent to 16 oz/t)
    • 3.62% copper

    These results validate historic sampling and provide compelling evidence of a significant antimony-silver-copper system across the project area, located 110km southwest of Kununurra in Western Australia's resource-rich Kimberley region.

    "We are very pleased with the high antimony, silver and copper results from our initial sampling that have confirmed and identified new areas for further work within the Chapmans – Catto corridor. The Company plans to extend mapping and sampling along the prospective eastern contact of the Speewah Dome," commented Rita Brooks, Tambourah Executive Chairperson.

    Strategic Positioning in Critical Minerals Supply Chain

    Antimony has been designated a critical mineral by major economies including the United States, European Union, and Australia due to its applications in flame retardants, lead-acid batteries, and military applications. With prices skyrocketing to US$60,000 per tonne, the high-grade antimony discovery by Tambourah Metals Ltd comes at an opportune time.

    The company's 181 sq.km Speewah North project benefits from proximity to planned infrastructure development, including Tivan's Speewah Fluorite deposit just 4km south which has secured major project status and attracted investment from Sumitomo Corporation.

    Understanding Antimony: A Critical Mineral in Short Supply

    Antimony is classified as a critical mineral due to its essential applications and supply constraints. This metallic element plays a crucial role in several key industries:

    • Flame Retardants: Antimony trioxide is widely used in flame-retardant formulations for plastics, textiles, and electronics.
    • Batteries: Used in lead-acid batteries to improve charging characteristics and battery life.
    • Military Applications: Essential component in ammunition, night-vision devices, and infrared detection systems.
    • Semiconductor Industry: Used in the production of diodes, infrared detectors, and Hall-effect devices.

    Global antimony production is dominated by China (approximately 60% of world supply), with significant concerns about supply security driving price increases. In fact, similar concerns have led to other discoveries like high-grade antimony at Ricciardo by Warriedar Resources. Australia has limited domestic antimony production, making new high-grade antimony discoveries particularly valuable for supply chain security.

    The combination of antimony with silver and copper at Speewah North enhances the project's economic potential, potentially allowing for multiple revenue streams from a single operation.

    Exploration Program Advancing Toward Drilling

    Tambourah has outlined a systematic approach to advance the Speewah North project:

    1. Extend outcrop mapping and sampling over the eastern margin of the Speewah Dome
    2. Further detailed investigation of the Chapman-Catto corridor
    3. Assessment of additional antimony-silver targets identified during data review
    4. Progression toward a targeted drilling program

    This methodical approach allows the company to maximize the effectiveness of future drilling campaigns by clearly defining the most prospective zones within the extensive mineralized system. Moreover, this approach mirrors successful strategies employed by companies like Hammer Metals with their gold-copper discoveries in North Queensland.

    Investment Case Strengthened by Critical Minerals Portfolio

    Tambourah Metals offers investors exposure to a diversified critical minerals portfolio across Western Australia, with the high-grade antimony discovery by Tambourah Metals Ltd adding significant value to the company's existing gold and critical minerals projects.

    Key investment considerations include:

    Aspect Details
    Market Position Positioned in critical minerals with soaring demand
    High-Grade Results 4.54% antimony, 517 ppm silver, 3.62% copper
    Infrastructure Access via highways, proximity to developing projects
    Corporate Well-structured with experienced management
    Catalysts Ongoing sampling, mapping and planned drilling

    The company's strategic focus on antimony at Speewah North aligns perfectly with global trends toward securing supply chains for materials essential to technology and defense industries. Furthermore, there are potential revenue opportunities similar to what M2M has found with golden crown stockpiles in other resource projects.

    Why Investors Should Track Tambourah Metals

    Tambourah Metals represents a compelling opportunity for investors seeking exposure to the critical minerals sector through a junior explorer with confirmed high-grade assets. The company's focused exploration approach at Speewah North has already delivered exceptional antimony-silver-copper grades that warrant close attention.

    With antimony prices reaching record levels and global supply concerns intensifying, the high-grade antimony discovery by Tambourah Metals Ltd comes at an ideal time. The company is well-positioned to build on these initial results with a systematic exploration program leading toward resource definition.

    For investors looking to capitalize on the critical minerals boom, Tambourah Metals offers ground-floor exposure to high-grade antimony at a time when this critical mineral has never been more valuable or strategically important. Additionally, those interested in similar success stories might consider early gold production opportunities or high-grade gold discoveries that have similarly rewarded early investors.

    Looking for Exclusive Alerts on the Next Major Antimony Discovery?

    Discovery Alert's proprietary Discovery IQ model delivers real-time notifications when significant mineral discoveries are announced on the ASX, helping you identify high-potential opportunities before the broader market. Explore how historic discoveries have generated substantial returns by visiting the Discovery Alert discoveries page and position yourself to capitalise on the next critical minerals opportunity.

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    Discovery Alert does not guarantee the accuracy or completeness of the information provided in its articles. The information does not constitute financial or investment advice. Readers are encouraged to conduct their own due diligence or speak to a licensed financial advisor before making any investment decisions.

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