Marquee Resources has added further technical definition to its Mt Clement (Eastern Hills) Antimony Gold Project in Western Australia, with the first assay results from Phase 2 reverse circulation drilling confirming mineralisation across all recognised zones and delivering the company’s first drill intersection into the Dugite structure.
The outcomes deepen the geological understanding of a system that already carries a maiden Mineral Resource Estimate and sits alongside one of Australia’s more prominent undeveloped antimony positions.
Highlights
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Phase 2 drilling comprised 2,908m across 14 RC holes, with assays received for 7 holes in the initial batch.
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Antimony mineralisation was intersected in every hole reported, across the Taipan, Dugite and Gwardar zones.
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Key intercepts include 6m at 1.32% Sb, 15.1g/t Ag and 2.74% Pb from 230m in MQRC396, including 3m at 2.49% Sb, 28.6g/t Ag and 5.17% Pb.
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First drill intersection into the Dugite Zone establishes a new mineralised domain within the project area.
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Two shipments of high grade antimony lead silver material have been delivered to Yantai Jinao, where metallurgical test work has commenced.
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Remaining Phase 2 assays are expected in January 2026, followed by an updated JORC Mineral Resource Estimate and Phase 3 drilling planned for Q1 2026.
The current program follows drilling completed in the back half of 2025 and brings total drilling at Mt Clement (Eastern Hills) to 4,254m across 21 RC holes.
Results reported to date confirm the presence of antimony mineralisation across multiple structures and depth levels, with continuity now demonstrated within all three recognised zones.
The first drilling of the Dugite Zone represents a notable step, as this structure had not previously been tested by Marquee and now adds a further layer of scale potential to the project.
Drill intersections reported from the Taipan Zone include higher grade antimony accompanied by silver and lead credits at depth, while Dugite drilling returned 8m at 0.58% Sb from 150m in MQRC397, including 2m at 1.52% Sb, and 5m at 0.35% Sb from 57m in MQRC398, including 1m at 1.42% Sb.
Gwardar mineralisation was intersected in MQRC403, returning 8m at 0.58% Sb from 120m, including 2m at 1.15% Sb, with all reported intervals representing downhole lengths and true thicknesses yet to be determined.
These results extend beyond parts of the existing inferred resource envelope, strengthening the geological basis for further resource definition, with the maiden Mineral Resource Estimate at Mt Clement (Eastern Hills), declared in September 2025, reported at 1.14Mt at 0.6% SbEq for 6,800t SbEq contained metal, including 6,000t of antimony.
An Exploration Target of approximately 3Mt to 6Mt at grades of approximately 0.4% to 0.8% Sb has also been outlined, noting that the potential quantity and grade are conceptual in nature and subject to further drilling.
Marquee Resources Executive Chairman, Charles Thomas commented:
“Importantly, the Phase 2 drilling has materially extended mineralisation beyond the maiden MRE envelope and demonstrates that the system remains robust at depth and along strike.”
In parallel with drilling, metallurgical work has progressed with two consignments of high grade antimony lead silver ore delivered to Yantai Jinao in China, with initial test work meeting expectations for grade and sample quality and prompting submission of a higher grade follow up sample intended to better reflect potential production scenarios.
Discussions with Yantai Jinao are ongoing, with a meeting between executives scheduled for early February.
Mt Clement is located approximately 30km southwest of Black Cat Syndicate’s Paulsens gold mine and is contiguous with Black Cat’s Eastern Hills antimony resource, described by Black Cat as Australia’s largest undeveloped antimony deposit.
With antimony designated as a critical mineral in Australia, the United States and Europe, the immediate focus for Marquee is on completing Phase 2 assays, updating its JORC resource base and advancing technical work ahead of the next phase of drilling.