Lunnon Metals Limited’s Lady Herial Breakthrough: Robust Metallurgical Results Signal A$44.7M Free Cash Flow Potential & Low A$2,100/oz Production Cost

Thursday, August 14, 2025
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8:17 am
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Lunnon Metals Limited announced strong metallurgical test results from its Lady Herial deposit, with high gold recoveries reinforcing scoping study targets. This promising performance supports the potential of an accessible open-pit asset, offering an exciting opportunity for novice traders in the gold production space.

Lunnon Metals Limited has released detailed metallurgical test results from its Lady Herial gold deposit that add further credence to the company’s developing production plans. Two new dedicated diamond drill holes returned promising intercepts of 9.0 meters at 4.27 g/t gold and 14.6 meters at 3.09 g/t gold, with the deposit’s gravity recovery averaging over 42%. The tests, conducted at ALS Global and designed to simulate the operating conditions of the nearby St Ives Gold Plant, confirmed overall gold recoveries of 91.4% after a 12‐hour residence and 94.6% after 24 hours of leaching with a P80 grind size of 150 microns. These conditions parallel the plant’s typical residence time of 18 to 20 hours, ensuring that the processing parameters used in the recent scoping study remain robust. The announcement highlights low reagent consumption—averaging 0.22 kg per tonne of sodium cyanide and 1.8 kg per tonne of lime—which, paired with excellent recovery rates, supports the economic viability of mining from the open pit at Lady Herial. Previous scoping studies have underpinned a financial model that projects pre-tax free cash flows between A$37.3 million and A$52.1 million at an A$5,000 per ounce gold price, while achieving an impressive all-in cost of roughly A$2,100 per ounce. The company’s forthcoming plans include ongoing grade control drilling to update its Mineral Resource Estimate and continued discussions with Gold Fields Limited toward finalizing a potential Ore Purchase Agreement. The detailed test work has reinforced the metallurgical properties expected at Lady Herial, and the favorable outcomes align well with the processing flowsheet of the established St Ives facility. With regulatory permitting underway for the open pit and advanced negotiations with Gold Fields, the project is poised to become a key catalyst for Lunnon Metals’ growth over the next year. Market sentiment from this news suggests a bullish outlook, as the strong technical results, robust recovery rates, and compelling economic projections bolster investor confidence. The positive test work and low operating costs indicate that the Lady Herial project could unlock significant value as gold prices remain elevated in a favorable market environment. However, a bearish perspective remains cautious, as the project’s success is still subject to environmental approvals, unforeseen scale-up challenges in full-scale plant operations, and potential volatility in the gold market. Beginner traders should weigh these factors carefully while considering the potential for upside in Lunnon Metals Limited’s development trajectory.

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