A single executive action in Washington has fundamentally altered the regulatory landscape for mineral exploration in northern Minnesota. President Donald Trump’s decision to permanently lift a 20-year mining moratorium on over 225,000 acres within the Superior National Forest removes what had been the single largest obstacle facing developers in the Duluth Complex — and places Green Bridge Metals squarely in the path of opportunity.
The new legislation, which cannot be reversed by future administrations, annuls a ban imposed by the previous government and reopens the region to mineral development. For Green Bridge, the timing is critical. The company’s flagship Serpentine copper-nickel project sits within the Mesabi District, directly adjacent to the well-known NorthMet and Sunrise deposits. The Duluth Complex is widely regarded as the world’s largest undeveloped source of copper, nickel and platinum group metals, and Serpentine alone carries an inferred resource of nearly 280 million tonnes, grading 0.37% copper and 0.12% nickel.
Drilling Data and Regulatory Hurdles
While the political backdrop has brightened, the company is navigating a more complicated operational picture. On the exploration front, Green Bridge has completed its initial drilling campaign at the Titac-South project, where three diamond drill holes totaling roughly 1,200 meters encountered visually identifiable sulfide mineralization over intervals of up to 450 meters. The company is now awaiting certified laboratory results before releasing any copper-grade data. An existing inferred resource at Titac South stands at 46.6 million tonnes with a titanium dioxide content of 15%.
Meanwhile, the company is pushing ahead with permitting for Serpentine. An exploration plan has been submitted to the Minnesota Department of Natural Resources for a site roughly 5.5 kilometers southeast of the town of Babbitt, covering diamond drilling at up to 12 locations and geophysical surveys. The mineral leases are held by Encampment Minerals Inc., which has designated Green Bridge Metals USA as operator — an arrangement already approved by the DNR. The company stresses this is an exploration phase, not a mining proposal.
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A Regulatory Setback in Canada
Less smoothly, Green Bridge was forced into an embarrassing correction in late April. Following a review by the British Columbia Securities Commission, the company withdrew a landing page hosted by an investor relations service and terminated the associated IR program. The page had contained economic assessments of the Serpentine resource, estimates of potential mineral content and comparisons with neighboring projects — all without the qualifications and disclaimers required under National Instrument 43-101. Crucially, no qualified person had reviewed the content. All affected statements have been formally retracted, and technical disclosures are now being overseen by Qualified Person Ajeet Millard.
Catalysts on the Horizon
Despite the regulatory hiccup, the company’s near-term calendar is packed with potential catalysts. The Titac-South assays are expected to be the next price-moving event. At Serpentine, Green Bridge plans a first diamond drilling program in the second half of 2026, comprising six to ten holes totaling 2,000 to 2,500 meters. Beyond confirming the copper-nickel resource, the program will also assess the potential for platinum group metals and cobalt. A preliminary economic assessment is targeted within the next 18 months.
The macro environment is supportive. S&P Global forecasts an average copper price of roughly $12,100 per tonne this year, driven by tight supply. Green Bridge’s stock has responded accordingly, climbing around 48% over the past year to close recently at C$0.23. In euro terms, the shares have more than doubled year-to-date, though they have slipped nearly 11% in the past seven days. With a relative strength index of 36.7, the stock is approaching oversold territory — a technical setup that often precedes a rebound if the next batch of drill results delivers.
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