Marquee Resources has confirmed consistently high-grade antimony mineralisation at its Mt Clement (Eastern Hills) Project, setting the stage for a maiden JORC resource estimate expected within two weeks.
- Consistent high-grade antimony intersected in all seven initial RC drill holes
- Significant precious metal credits including gold, silver, and lead
- Maiden JORC-compliant resource estimate due imminently
- Phase 2 drilling to target depth and strike extensions starting late September
- Project strategically positioned adjacent to Australia’s largest undeveloped antimony deposit
Strategic Critical Mineral Discovery
Marquee Resources Limited (ASX, MQR) has delivered a compelling update from its Mt Clement (Eastern Hills) Project in Western Australia, confirming robust and consistent high-grade antimony mineralisation across all seven reverse circulation drill holes completed in its initial campaign. This announcement arrives as the company prepares to release its maiden JORC-compliant resource estimate within approximately two weeks, a milestone that could significantly enhance Marquee’s standing in the critical minerals sector.
Antimony, a mineral critical to flame retardants, alloys, semiconductors, and military technologies, is currently dominated by supply from China and Russia. Marquee’s Mt Clement Project, contiguous with Black Cat Syndicate’s Eastern Hills deposit, Australia’s largest undeveloped antimony resource, positions the company to play a pivotal role in establishing a secure Western supply chain for this strategic mineral.
Drilling Results Highlight Multiple Mineralised Zones
The initial drilling program, comprising 1,346 metres over seven holes, confirmed mineralisation continuity and revealed multiple sub-parallel antimony-lead bearing lodes associated with quartz-sulphide veining. Notably, assays returned significant intervals such as 8 metres at 1.05% antimony and 2.85% lead, including higher-grade sections up to 1.48% antimony. Precious metal credits were also evident, with gold and silver assays adding further value to the project’s economics.
Executive Chairman Charles Thomas emphasised the importance of these results, stating that every hole confirmed high-grade mineralisation and that the upcoming maiden resource will validate the company’s exploration model. The presence of stacked mineralised horizons and extensions at depth, as demonstrated by the deepest hole intersecting mineralisation at 232 metres, underscores the potential scale of the deposit.
Next Steps and Exploration Outlook
Marquee is poised to commence a Phase 2 drilling program in late September 2025, targeting both depth and strike extensions to further delineate the mineralised system. Planning for a Phase 3 campaign is already underway, signaling the company’s commitment to aggressively advancing the project. The maiden JORC resource estimate will provide a critical benchmark for investors and industry watchers, offering clarity on the deposit’s size and grade distribution.
Geologically, the Mt Clement Project lies within the Ashburton Basin, characterized by Proterozoic meta-sedimentary and meta-volcanic rocks. The mineralisation style, featuring boulangerite and jamesonite assemblages with galena and arsenopyrite, aligns with regional analogues and supports the prospectivity of the area. Marquee’s exploration approach, backed by rigorous sampling and assay protocols, aims to refine the understanding of this complex system.
Strategic Implications for Critical Minerals Supply
With global recognition of antimony’s critical status growing, Marquee’s timing could not be better. The company’s proximity to Black Cat Syndicate’s large resource and its own promising results position Mt Clement as a potential cornerstone asset in Australia’s critical minerals landscape. As supply chain security becomes a priority for Western markets, Marquee’s progress will be closely monitored by investors seeking exposure to strategic mineral projects with clear development pathways.
Bottom Line?
The imminent maiden JORC resource and upcoming drilling phases will be pivotal in defining Marquee’s role in the critical antimony supply chain.
Questions in the middle?
- What will the maiden JORC resource reveal about the total size and grade of the Mt Clement deposit?
- How will Phase 2 drilling results impact the project’s resource classification and potential mine planning?
- What are the implications of precious metal credits for the overall project economics and investor appeal?