SKY METALS LIMITED Delivers Breakthrough Tin Ore Sorting – 44x Grade Upgrade & 93% Mass Reduction Paving the Way for Low-CAPEX Tallebung Tin Production.

Monday, August 18, 2025
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9:16 am
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SKY METALS LIMITED reports breakthrough ore sorting results from 75 tonnes of bulk samples at its Tallebung Tin Project in NSW, achieving impressive tin grade upgrades and over 93% mass reduction. The findings point to reduced CAPEX and OPEX, with pilot processing and off-take marketing now on the horizon.

Sky Metals Limited has reported breakthrough ore sorting results from its flagship Tallebung Tin Project in central New South Wales. The company processed over 75 tonnes of bulk samples using a full‑scale TOMRA XRT ore sorter in a two‐stage circuit that delivered impressive tin grade upgrades and recoveries. In the first stage, tin grades jumped from 0.17% to 2.32%—a 13‑fold increase—with 94.8% tin recovery and more than 93% mass rejection. This significant mass reduction is anticipated to lower both capital and operating expenses in any future mining operation. The second stage further upgraded the tin grade to 10.8%, representing an additional 4.6‑fold increase with a 70% recovery. The announcement highlighted complementary enhancements in by-product recoveries, with silver upgraded from 7.44g/t to 75.9g/t at an 80% recovery rate, while tungsten also showed encouraging results. The testing successfully validated earlier metallurgical work and confirmed that the ore sorting technology performs reliably even in highly weathered, friable surface material—a zone generally regarded as challenging for such processes. The upgraded material will now progress to dense medium separation at ALS Perth, followed by pilot‑scale gravity processing at ALS Burnie to produce a saleable tin concentrate to support off‑take discussions. Managing Director and CEO Oliver Davies underscored the importance of these results, noting the scalability and robustness of the current flowsheet. The significant reduction in processed material combined with outstanding metallurgical performance reinforces the company’s strategy to advance the project and position itself to meet growing market demand for tin, essential in sectors like electronics and solar technology. In evaluating the news, the bullish perspective is supported by the substantial grade improvements, high recovery rates, and clear potential for cost reduction, which together point toward a favorable outlook for the project’s economics. On the bearish side, some caution is warranted given that the testing was conducted on highly weathered and friable near-surface material, which may not fully represent deeper, more consistent mineralization. Further pilot‑scale processing results and future drilling outcomes will be key to confirming the long‑term viability of these encouraging findings.

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