PolyMet Mining Corporation is a U.S.-based mining company focused on the development of the NorthMet copper-nickel-precious metals project located in northeastern Minnesota. The company’s primary business activity is the exploration, permitting, and potential operation of an open-pit mine and hydrometallurgical processing facility designed to produce copper, nickel, cobalt, platinum group metals, and gold. PolyMet’s strategy centers on advancing the project through environmental reviews, detailed engineering studies, and stakeholder engagement with regulators and local communities.
Founded in 1981 and listed on the NYSE American under the ticker PLM, PolyMet has evolved from an exploration stage company to a near-term development enterprise. The firm completed a Final Environmental Impact Statement in collaboration with the U.S. Forest Service and the Minnesota Department of Natural Resources, marking a key regulatory milestone. PolyMet has also engaged strategic partners for offtake agreements and technical support to secure the resources needed for project construction and operation.
The NorthMet project is situated near the city of Hoyt Lakes in St. Louis County, serving regional economies through anticipated capital investments, infrastructure upgrades, and job creation. PolyMet emphasizes sustainable mining practices, water treatment systems, and reclamation plans designed to meet or exceed environmental standards. The company works closely with tribal governments, local businesses, and environmental organizations to address concerns and foster long-term community benefits.
PolyMet’s leadership team is headed by President and Chief Executive Officer Julie Szajkowski, who brings extensive experience in mining operations and project development. The board and management combine expertise in geology, metallurgy, engineering, finance, and environmental management. Together, they aim to deliver a responsible mining project that provides critical base and precious metals for the electrification and clean energy transition while contributing to the economic vitality of northeastern Minnesota.
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