Pacgold Limited (ASX:PGO) maiden drilling confirms high-grade antimony system at St George

Pacgold Limited (ASX:PGO) maiden drilling confirms high-grade antimony system at St George

December 22, 2025 Off By MarketOpen

Pacgold has delivered a technically important early result from its maiden reverse circulation drilling at the St George Gold Antimony Project in north Queensland, confirming that high-grade antimony mineralisation extends below surface and is hosted within multiple coherent structures.

The results provide the first modern subsurface validation of historical workings and surface sampling at St George, establishing the project as the initial anchor point within a much larger antimony corridor that has seen limited contemporary exploration.

Highlights

  •  Maiden RC drilling intersected multiple thick, continuous structures carrying high-grade antimony
  • Best intercepts include 8m @ 2.3% Sb, with internal intervals up to 1m @ 11.9% Sb
  • Drilling confirms subsurface continuity beneath historic surface workings
  • A total of 826m across 9 holes completed, with assays pending for 7 holes
  • St George forms part of a newly defined antimony corridor extending over 20km of strike

The St George drilling program was designed as a first pass test of structurally controlled quartz veins that historically supported small scale antimony mining during the 1960s.

Pacgold completed 9 RC holes for 826m in November, targeting down dip extensions beneath high-grade surface mineralisation across 200m of strike.

Assays have now been received for the first 2 holes, SGRC001 and SGRC002, both of which intersected multiple zones of antimony mineralisation with associated gold.

The strongest results were returned from SGRC001, which intersected 8m @ 2.3% Sb from 16m downhole, including narrower intervals grading 4.2% Sb and 11.9% Sb, as well as a further 3m @ 3.7% Sb from 39m.

SGRC002 intersected 8m @ 2.3% Sb from surface, including 2m @ 8.2% Sb, confirming that mineralisation persists both laterally and vertically beneath known workings.

Mineralisation is hosted within north trending quartz veins developed in interbedded sandstone and shale sequences of the Hodgkinson Province, a region with a long history of structurally controlled gold and antimony mineralisation.

Several holes logged visible stibnite within quartz veining, consistent with laboratory assay results, while remaining aligned with JORC guidance that visual observations are not substitutes for analytical data.

Managing Director Matthew Boyes said the initial drilling outcomes had validated the geological model underpinning the project, stating that

“the maiden drilling results at St George confirm extensions of high-grade antimony mineralisation below surface and demonstrate strong continuity within multiple mineralised structures, reinforcing our view that the historic workings represent part of a much larger system that remains almost completely untested.”

Beyond the immediate drilling results, St George is emerging as part of a broader regional antimony corridor that now extends over more than 20km of mapped strike.

Soil geochemistry, surface rock chip sampling, and mapped mineralisation have identified multiple prospects including Ridgeline, Fence, and Big Watson, several of which remain untested by drilling.

Pacgold has indicated that follow up drilling programs are being designed, with heritage clearance and approvals underway, while additional assays from the remaining 7 holes are expected in early 2026.

From a broader corporate perspective, the St George results sit alongside Pacgold’s Queensland exploration portfolio and its acquisition of the White Dam Gold Operation in South Australia, which provides established processing infrastructure and operational capacity.

The company retains the ability to earn up to a 100% interest in the St George tenement package, which covers approximately 905km² across granted and application stage permits.

As antimony continues to attract attention as a strategically constrained commodity, Pacgold’s confirmation of high-grade subsurface mineralisation at St George represents a substantive technical step in defining the scale and continuity of this emerging district.

With further assays pending and multiple priority targets yet to be drill tested, the next phase of work will focus on systematically advancing geological understanding across a corridor that has seen limited modern exploration to date.

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