Trevali Mining Corp reported record lead and zinc production in both the fourth quarter and the full-year 2017 due to the company's acquisition of two zinc-lead mines in August from Glencore plc.The Canada-based company paid $417.9 million for an 80% stake in the Rosh Pinah mine in Namibia and a 90% stake in the Perkoa mine in Burkina Faso in West Africa.
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