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Talon Metals outlines Minnesota mine and proposed Mercer County processing facility; commissioners defer moratorium decision
Summary
Talon Metals described an underground nickel mine in Minnesota and a proposed ore-processing facility sited near Mercer County, N.D.; company and commissioners discussed timeline, tailings management and public engagement, and postponed a decision on lifting the county's ore-processing moratorium to the next meeting.
Jessica Johnson, external affairs lead for Talon Metals, told the Mercer County Board of Commissioners that Talon’s proposed project would bring ore from an underground nickel mine in Tamarack, Minnesota, to a separate processing facility the company has proposed near Mercer County.
Johnson said the project has federal funding and is entering formal environmental review. "We started the environmental review process on this design here in Minnesota," she said, and added that the company has submitted a draft environmental assessment to the U.S. Department of Energy as part of a DOE grant supporting development of the processing facility.
The presentation outlined how ore would be moved by rail from the Minnesota mine to the North Dakota processing plant, crushed and ground, and separated by flotation into a nickel-copper concentrate that would be shipped onward. Johnson described the company’s base-case tailings plan as dry-stack piles and said Talon is researching ways to treat tailings into byproducts rather than waste. "We are looking at mixing our tailings with fly ash," she said, which the company says would chemically stabilize and harden the material.
Why it matters: the project would affect local land use, rail operations and water, air and waste-management questions that residents and local officials identified repeatedly during the meeting. Commissioners pressed the company for a timeline, information on environmental review and the handling of processed material; residents were advised that the DEQ and DOE review processes will be public once a land package is secured.
Key details Talon provided included: the company holds a Department of Energy award it described as roughly $114 million to support the processing facility; a separate Defense Logistics Agency award of about $2.6–2.7 million funds research into recovering additional products from tailings; and an existing portion of offtake for nickel concentrate with Tesla. Johnson said Talon aims to secure the site land package in the first quarter of the year, complete feasibility and the EA in 2025, pursue permitting in 2026, begin construction in 2027 and aim for first production around 2029 if schedules align.
Commissioners asked technical and community-focused questions. Commissioner Rick Baumann asked specifically about waste and disposal; Johnson said the company’s environmental assessment lists a dry-stack tailings approach and that Talon is investigating byproduct recovery and mixing tailings with fly ash to neutralize and harden the material. Commissioner Jean Wolf and others pressed for details about water sourcing, air and water quality monitoring, mitigation measures and public engagement; Johnson said the DOE-led EA and related materials would be public and Talon would provide regular updates and technical staff briefings when the process advances.
Board action and next steps The commission did not vote on permits or zoning for the project. Commissioners discussed whether to lift a local ore-processing moratorium tied to county policy; they agreed to defer any decision to the next regular meeting so the board can review additional information and receive input from staff, legal counsel and state agencies. Commissioners and Talon agreed to more frequent information-sharing: Johnson said she will email the slide deck from the presentation and offered to arrange follow-up briefings by Talon technical staff.
Context and accountability Talon identified Argonne National Laboratory as a research partner on byproduct work and said some processing steps were modeled on the currently operating Eagle Mine in Michigan. Johnson emphasized the project is subject to federal and state permitting and said the DOE cannot complete its EA until the land package is secured. Commissioners asked that Talon coordinate public briefing events and regular updates to the commission.
Provenance: the presentation and Q&A are recorded in the meeting transcript beginning with Johnson’s introduction and slides and concluding with her offer to send materials and continue engagement. The board recessed the moratorium discussion to the next meeting so members can gather more information and public input.
