AT4 Commences Wet Table Trials at Del Sol as Tungsten and Antimony Refining Pathways Advance

American Tungsten & Antimony Limited (ASX: AT4; OTCQB: ATALF) has commenced wet table gravity concentration trials at the Del Sol hydrometallurgical refinery in Nevada, working on scheelite-bearing tungsten mineralisation from its Dutch Mountain Project and on approximately three tonnes of stibnite-bearing material hauled from White Spar in Arizona.

Engineering proposals for the proposed ammonium paratungstate expansion have been received, with the preferred firm to be appointed within two weeks, and a full restart trial of the Del Sol antimony flake circuit is targeted before the end of the September quarter. Our full report covers both work streams, the two permit applications now before the Nevada Division of Environmental Protection, and how the engineering package connects to the Company’s US$18 million DOE award negotiations.

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