Miguel antimony-silver project in Mexico's Queretaro state, the
company reported in a statement.
Additionally, the permit for mill construction is expected in two
weeks, CEO John Lawrence told BNamericas.
In addition, a pipeline from a wastewater treatment plant is under
construction, the statement said.
Initial feed for the flotation mill will be from dumps from previous
mining operations, which are estimated to hold some 10,000t of mill
feed.
Meanwhile, mining will occur on four mine faces in existing,
historically mined pits. The company aims to start mining by June 1,
Lawrence said.
Sample assays from the faces, each more than 3m high, included 3.72%
antimony, 0.04oz/t gold (1.09g/t), 3.72oz/t silver; 1.69% antimony,
0.04oz/t gold, 1.82oz/t silver; 2.63% antimony, 0.01oz/t gold,
8.72oz/t silver; and 4.74% antimony, 0.02oz/t gold and 18.4oz/t
silver.
Concentrates of antimony, silver and gold from the 150t/d mill will be
processed at US Antimony's smelter at Estacion Madero in Mexico's
Coahuila state.
US Antimony describes itself as the only significant US-based producer
of antimony products, since China controls 89% of the world antimony
production.
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