Highland Copper Completes Environmental Mitigation Program Demonstrating Benefit of Concurrent Reclamation at Copperwood Project
September 10, 2025
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HIGHLAND COPPER COMPLETES ENVIRONMENTAL MITIGATION PROGRAM DEMONSTRATING
BENEFIT OF CONCURRENT RECLAMATION AT COPPERWOOD PROJECT
Vancouver, British Columbia – September 10, 2025 – Highland Copper Company Inc. (TSXV: HI; OTCQB:
HDRSF) (“Highland” or the “Company”) is pleased to announce the successful completion of its early site
work and related environmental mitigation program at its 100%-owned, fully permitted Copperwood Project
in Michigan, USA.
The program was completed safely, within budget, and in full compliance with the Michigan Wetlands and
Streams Permit. The early site works program focused on preparing the site for future construction while
proactively implementing environmental safeguards and controls. The work has been subject to ongoing
inspection from the Michigan Department of Environment, Great Lakes , and Energy (“EGLE”) and has met
all key regulatory obligations . Importantly, the environmental mitigation program has demonstrated the
positive impact of concurrent reclamation. Completion of this initiative not only ensures that permits remain
in good standing but also demonstrates Highland’s ongoing commitment to responsible development.
A central component of the program was a significant investment in environmental stewardship to minimize
and mitigate the project's impact. Key activities included:
• Wetland Creation: The construction of approximately 18 acres of compensating wetlands to offset
impacted areas.
• Revegetation: The successful planting of nearly 20,000 native trees, wildflowers, sedges, and
rushes in the newly created habitats throughout the stream diversion and wetlands.
• Long-Term Preservation: Commitment to establish a 717-acre wetland preservation area, with a
conservation easement and long -term management plan being finalized to ensure permanent
protection beyond the life of mining operations.
Barry O’Shea, CEO of Highland Copper, commented: “ Michigan has stringent regulation to ensure mining
projects minimize and mitigate their impact. Highland takes this commitment seriously and has
demonstrated this with its environmental mitigation work at this early stage of its development. We are also
showing that re clamation does not need to start at closure. It can be done concurrent with development.
We are particularly pleased that the stream and wetland projects are maturing well into high -quality
habitats.”
The following photos show how the wetland creation and revegetation efforts are quickly maturing. A variety
of seeded and planted species are taking hold, along with abundant wildlife . These mitigation projects are
continuing to develop into a self-sustaining systems, rich in biodiversity.
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Figure 1 – A section of the East Stream diversion channel, comparing April (left) and August (right) 2025. Vigorous
vegetation growth across the reconstructed stream areas has stabilized the new channels against erosion while
creating high-quality wildlife habitat.
Figure 2 – Plant growth in the Gipsy wetland mitigation area has been impressive. The images above show
vegetation development in wetland cell ‘C1’ from May (left) to August (right) 2025.
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Figure 3 – The Choate Road crossing over Bluff Creek was improved to replace a set of culverts with a
clear-span bridge. Shown above are the culverts (before) and the new bridge (after). This stream mitigation
project was designed to improve fish passage and stream habitat quality. Additional restoration of in-
stream features, both up and down-stream from the bridge, will be completed in September 2025.
Figure 4 – Stream restoration in several sections of Bluff Creek is designed to improve stream flow
properties and habitat quality. Shown above is a location where the eroded outside bank (left - April 2025)
is in the process of being reconstructed (right - August 2025).
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About Highland Copper Company
Highland Copper Company Inc. is a Canadian company focused on exploring and developing copper
projects in the Upper Peninsula of Michigan, U.S.A. The Company owns the Copperwood deposit through
long-term mineral leases and 34% of the White Pine North proje ct through a joint venture with Kinterra
Copper USA LLC. The Company also owns surface rights securing access to the Copperwood deposit and
providing space for infrastructure at Copperwood as required. The Company has 736,363,619 common
shares issued and outstanding. Its common shares are listed on the TSX Venture Exchange under the symbol
"HI" and trade on the OTCQB Venture Market under symbol "HDRSF".
More information about the Company is available on the Company’s website at www.highlandcopper.com
and on SEDAR+ at www.sedarplus.com.
Cautionary Note Regarding Forward-Looking Information
This news release contains “forward -looking statements” and “forward -looking information” (collectively
“forward-looking statements”) within the meaning of applicable Canadian securities legislation. These
statements include, without limitation, statements with respect to: the anticipated benefits of early site work
program at Copperwood. The forward-looking statements are subject to a number of assumptions, including
those set out in the technical reports entitled “Feasibility Study Update Copperwood Project Michigan, USA”
and the Company’s annual information form for the year ended June 30, 2024 (the “AIF”). These underlying
assumptions may prove to be incorrect. Important factors that could materially impact the Company's
expectations include: changes in project parameters as plans continue to be refined; availability of services,
materials and skilled lab our to complete work programs, testing and drilling; effects of regulation by
governmental agencies; the fact that permit extensions, renewals and amendments are subject to regulatory
approvals, which may be conditioned, delayed or denied; advancement to a construction decision at
Copperwood is subject to additional studies, for which the Company will req uire additional funds, which
may not be available on a timely basis and accordingly could delay a construction decision; unexpected cost
increases, which could include significant increases in estimated capital and operating costs and the effects
of inflation; fluctuations in metal prices and currency exchange rates; general market and industry
conditions, the results of baseline studies and test work may result in unforeseen issues which could delay
or hamper advancement of the projects, and the other risks set out in the Company’s public disclosure
documents, including the AIF, filed on SEDARPlus. Although the Company believes that the assumptions
and factors used in preparing the forward -looking statements in this news release are reasonable, undue
reliance should not be placed on forward looking statements. All forward -looking statements in this press
release are based on information available to the Company as of the date hereof, and the C ompany
undertakes no obligation to update forward-looking statements except as required by law.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
release.
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For further information or media requests, please contact:
Barry O’Shea, CEO
Email: [email protected]
Website: www.highlandcopper.com