Highland Copper Receives Approval FOR Updated AIR Permit Application

March 4, 2025

TSX.V : HI | OTCQB : HDRSF Page 1 of 2

HIGHLAND COPPER RECEIVES APPROVAL FOR UPDATED AIR PERMIT APPLICATION

Vancouver, Canada, March 4, 2025 – Highland Copper Company Inc. (TSXV: HI; OTCQB: HDRSF)

(“Highland Copper” or the “Company”) is pleased to announce the approval of its updated air

permit application (known as Permit to Install in Michigan) from the Michigan Department of

Environment, Great Lakes, and Energy (EGLE).

This newly issued air permit replaces the existing permit granted to the Copperwood Project

(“Copperwood” or the “Project”) in 2018. The updated permit provides flexibility for the Project to

supplement incoming power from the main electrical supply with on-site generators when needed,

ensuring a reliable and efficient energy strategy for operations.

As part of the state and federal permitting process, EGLE held a public comment period that

concluded on December 10, 2024, and conducted a virtual public hearing on October 30, 2024.

Following a thorough review and careful consideration of all comments su bmitted, EGLE’s Air

Quality Division (AQD) formally approved the application on February 27, 2025.

Barry O’Shea, CEO of Highland Copper, commented: "We are pleased to receive this approval from

EGLE, which reflects the thorough and fair regulatory review process in Michigan. The issuance of

this permit underscores that Copperwood has been designed to meet rigorous environmental

standards and operate r esponsibly within the community. We appreciate the continued support

from state authorities and the local community, whose engagement has been instrumental

throughout this process."

Highland Copper remains committed to advancing the Copperwood Project responsibly, ensuring

that development aligns with government regulations, environmental best practices, and

community expectations. The Company looks forward to continuing to work collaboratively with all

stakeholders as it progresses toward bringing Copperwood into production.

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

the symbol "HDRSF."

TSX.V : HI | OTCQB : HDRSF Page 2 of 2

More information about the Company is available on the Company’s website at

www.highlandcopper.com and on SEDAR+ at www.sedarplus.ca.

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.

For further information or media requests, please contact:

Barry O’Shea, CEO

Email: [email protected]

Website: www.highlandcopper.com