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A small mineral with outsized impact takes centre stage as we explore how high-grade antimony, refined onshore, can reshape America’s critical minerals backbone. We sit down with Kerrie Matthews, Managing Director and CEO of Locksley Resources, to chart a clear path from drill bit to product: rigorous structural mapping, a data-driven maiden drill program at the Desert Antimony Mine, and a pilot plant designed around real metallurgy rather than wishful thinking. The stakes aren’t academic. With defence, flame retardants, and supply security on the line, the United States needs more than ore; it needs refining capacity, standards, and speed.
Kerrie breaks down how layered geophysics, geochemistry, and underground analysis improved the model before drilling kicked off, helping target above historic workings for faster, more meaningful results. We dive into batch sampling that returned weighted averages around 18% Sb and peaks above 25%, what that means for processing efficiency, and why high-grade feed can shrink plant footprint and operating costs. Then we zoom out to the policy landscape: the executive focus on downstream bottlenecks, a DPA Title III application to accelerate the pilot facility, and early engagement with funding channels that can bring refinery capacity back onshore.
Scale and diversification also come into play. The newly identified Beefeater shear, a 10 to 15 metre wide corridor that mirrors the Desert Antimony Mine structure, hints at a larger multi-vein system, with Hendricks offering further upside. On the rare earths front, El Campo’s proximity to MP Materials and strong surface TREO samples set the stage for a compelling follow-on drill program. We round it out with process innovation: advancing antimony purity targets, moving toward trioxide, and partnering with Rice University on Deepsolv™ pathways to inform a cleaner, smarter hydrometallurgical design.
If you care about resilient supply chains, practical project delivery, and the real work of turning geology into metals, this conversation brings clarity and momentum. Subscribe, share with a friend who follows critical minerals, and leave a review to tell us what you want to hear next.