Key Highlights

  • Trench channel TTD-002 returned 4.9m at 0.48 g/t Au and 7.71% Sb, with 1.2m at 30.20% Sb within that interval.
  • The highest interval equates to 104.06 g/t AuEq across 1.2m, from ten trenches and 62 channel intervals.
  • The geology has broad similarities with the Sunday Creek gold-antimony system in Victoria, about 100km away.
  • True widths and continuity between exposures and at depth remain unconfirmed, and drill planning is under way.

Infinity Mining Limited (ASX:IMI) has reported gold and antimony assays from initial channel sampling at Tanjil Dome, where exploration is being carried out in a joint venture with Mining One Consultants. The announcement dated 11 November 2026 covers ten trenches comprising 62 channel intervals over 58.1m, testing quartz veins and stibnite in heavily weathered intrusive rocks.

The trench results

Trench TTD-002 returned 4.9m at 0.48 g/t gold and 7.71% antimony, equal to 26.92 g/t AuEq. Within that interval, 1.2m returned 0.46 g/t gold and 30.20% antimony, equal to 104.06 g/t AuEq. TTD-001 returned 1.6m at 0.46 g/t gold and 2.23% antimony, with 0.6m at 19.13 g/t AuEq within it.

Other trenches returned lower antimony but gold grades of around 1 to 1.7 g/t, including 5.0m at 1.30 g/t at TTD-006 and 1.0m at 1.70 g/t at TTD-005. Antimony content in those holes was low, at about 0.02%.

Geology and the regional comparison

The company said gold-antimony mineralisation at Tanjil Dome is associated with quartz veining and altered dyke rocks, which shares broad geological similarities with aspects of the Sunday Creek system, an ASX-listed gold-antimony deposit in Victoria.

The trenches tested limited exposures within a broader soil anomaly of about 1km. Eight channels cluster in the main trench area and two lie about 200m to the north. The company said the soil anomaly is a geochemical footprint, and continuous mineralisation across that extent has not been established.

Sampling limits and the drilling plan

Channel samples from trenches are short, selective and surface-based. The company said true widths and continuity between exposures and at depth remain unconfirmed, so the grades reported are not a measure of the average grade of a deposit.

The results will guide further trench mapping and a maiden drill program, which the company is preparing. Drilling will be needed to test whether the high-grade veins continue below surface.

Final Word

The Tanjil Dome trenches show very high antimony and gold grades in some narrow channels, along with a wider soil anomaly that has not yet been shown to be continuous. The trench mapping and maiden drilling will determine whether the veins are repeatable and extend to depth.