Sunshine Silver weighs doubling mill capacity
The proposed plant would process up to 2,000 tonnes a day compared with about 1,000 tonnes in the initial assessment.
Sunshine Silver Mining & Refining is planning to double the capacity of its mill to process up to 2,000 tonnes of silver ore per day, according to its second-quarter filing. The proposed plant would be located near Kellogg, Idaho, and would expand production as drilling continues to expand the resource. The company's CFO, Heather White, stated that completing feasibility studies by the first half of next year would help determine the additional capital needed to fund the larger mill.
The smaller operation, estimated at $286.9 million in capital costs, was forecast to produce 6.7 million ounces of silver annually over a 24-year mine life. The new mill's larger capacity would give Sunshine more flexibility in the Upper Country area, where drilling suggests potential resource growth. Additional feasibility studies are expected in the first half of next year, evaluating the construction of a new antimony plant and the restarting of the existing silver-copper refinery, which has a nameplate capacity of 10 million ounces of silver per year.
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