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A copper and gold discovery on Chile’s coastal range is turning from a secondary find into the centerpiece of a much larger mining project. Hot Chili Limited (OTCQX: HHLKF, ASX: HCH) has spent the past several months drilling at a site called La Verde, located about 18 miles south of the company’s planned processing hub for its broader Costa Fuego copper and gold project in the Atacama region. What began as a supporting discovery is now shaping up to carry much of the project’s future value.
The latest results, announced this week, come from two types of drilling. The first, called reverse circulation drilling, tests shallow ground close to the surface. The second, diamond drilling, reaches deeper and confirms how far the mineralized zone extends. Both methods returned strong numbers. One hole, DKP053, intersected 250 meters of rock grading 0.50% copper equivalent starting just 209 feet below surface, with a smaller section running as high as 0.72% copper equivalent. Nearby holes DKP054, DKP056 and DKP058 returned similar results, all within roughly 328 feet of the surface.
Why does shallow mineralization matter so much? In mining, rock that sits close to the surface is generally cheaper and faster to extract than rock buried hundreds of meters down. A cluster of high-grade material near the surface can effectively become a starter pit, the first area a company mines when a project begins production. That lowers upfront costs and can shorten the time between construction and revenue. The company describes this shallow zone as a genuine enrichment area rather than a scattered set of isolated results, meaning the grades appear continuous across a meaningful footprint rather than concentrated in a few lucky holes.
Deeper drilling is telling a different but complementary story. A hole called DKD049 was deliberately placed 575 feet from an earlier hole that had already produced the widest and highest grade intersection at La Verde to date. The new hole confirmed the mineralization keeps expanding to the east at depth. Another hole, DKP028D, extended a previously drilled zone by 656 feet and confirmed growth to the west. Together, these results suggest La Verde is not a small, contained deposit but a genuinely large system still being mapped out in multiple directions.
Twenty-one more drill holes still have assay results pending, and the company recently brought a second laboratory online to process samples faster, after regional rainstorms slowed earlier work. That backlog should start clearing in the coming months.
The bigger milestone analysts are watching for is a maiden mineral resource estimate for La Verde, expected later this year. That report will translate all these individual drill results into a single estimate of how much copper and gold the deposit likely contains, the figure that ultimately determines a mine’s economic potential. From there, the company plans to fold La Verde into an updated feasibility study for the entire Costa Fuego project, with an environmental review targeted for submission in the second quarter of 2027.
None of this guarantees a mine gets built. Exploration results, even encouraging ones, still require years of engineering, permitting and financing before ore ever reaches a processing plant. But for a project already ranked among the largest independent copper developments not owned by a major mining company, a second deposit growing this quickly adds real weight to the argument that Costa Fuego’s story is still being written.
