Trilogy Metals has reported positive results from a prefeasibility study (PFS) of its Arctic copper-zinc-lead-silver-gold project in the Ambler mining district of northwest Alaska. Average annual payable production is estimated at more than 159 million pounds (lb) of copper, 199 million lb of zinc, 33 million lb of lead, 30,600 ounces (oz) of gold, and 3.3 million oz of silver in separate copper, zinc, and lead concentrates, with the majority of the silver and gold reporting to the lead concentrate.
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