The 100% owned Yarbu Gold Project was acquired by TSC in late 2020, as an early stage greeenfield’s project in a highly prospective areas for Archean gold deposits.


  • Yarbu Gold Project located on Marda-Diemals greenstone belt adjacent to Ramelius Resources (ASX: RMS) Marda Gold Project containing 280koz Au JORC 2012 compliant resource.
  • TSC’s Yarbu project is in large, underexplored tenement holding covering the known gold mineralised Clampton Fault.
  • There is clear evidence the Clampton Fault is prospective for Archean shear-hosted gold deposits, as the historical Clampton Mine is south of TSC’s Yarbu Gold Project, Clampton Mine produced 7,800oz Au (9,534t @ 25.4g/t Au) between 1933-50.
  • TSC’s tenements cover 22km long zone of the Clampton Fault, which has very limited historical drilling.
  • Historical drill holes on traverses spaced 4.5km apart testing the Clampton Fault hit 1m @ 1.1g/t Au and 1m @ 0.56g/t Au have never followed up.
  • The Company is planning an extensive geochemistry program focusing on the Clampton Fault and accessory structures to generate drill targets in 2021.


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  • Strong gold in soil geochemical anomalies identified around Yarbu Project
  • Anomalies overlie known mineralised structures and favourable host lithologies
  • Anomalies highlight complex structural settings within Yarbu
  • Minimal exploration undertaken over much of the Yarbu tenements
  • Field reconnaissance auger program to commence early May
  • Newly reprocessed historical geophysical data has highlighted previously unknown folding within TSC’s ground

Twenty Seven Co. Limited (ASX: TSC) (“TSC” or “the Company”) is pleased to report that the collation and review of historical soil geochemistry, coupled with the reprocessing of open file historical geophysical surveys1, has confirmed the presence of favourable structural settings at TSC’s 100%-owned Yarbu Gold Project (“Yarbu”) which warrant first-pass exploration investigation.

As part of the ongoing exploration of Yarbu, the Company’s geologists have spent several weeks digitizing historical geochemical sampling and drilling undertaken by previous exploration companies across the Yarbu tenement package and surrounding areas.  Historical data has been obtained in this regard through the Western Australian Department of Mines, Industry Regulation and Safety (DMIRS) WAMEX Mineral Exploration Reporting website.

Significant regional historical gold (Au) in soil geochemistry as well as associated Arsenic (As), and Lead (Pb) corresponds to gold mineralisation identified in historical drilling, suggesting Yarbu could contain multiple structural gold targets that have never been tested by modern geochemical techniques.


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