American Tungsten Corp. reported positive initial metallurgical test results from its IMA Tungsten Project at the IMA Mine in Lemhi County, Idaho, indicating the tungsten-silver mineralized material responds well to dense media and gravity separation. Bench-scale work by Sepro Laboratories achieved up to 94.4% WO3 recovery using staged Falcon gravity concentration with regrinding, while heavy liquid separation delivered 91.1% WO3 recovery at a 33.8% mass pull. Flotation tests also effectively concentrated sulfides, recovering 83.2% copper, 72.0% silver and 59.1% molybdenum with minimal WO3 loss, supporting potential for an efficient processing flowsheet as the company plans further metallurgical and process design testing.

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