Highland Copper Identifies Key Optimization Opportunities Through Detailed Engineering at the Copperwood Project

VANCOUVER, British Columbia, June 03, 2026 (GLOBE NEWSWIRE) -- Highland Copper Company Inc. (TSXV: HI; OTCQB: HDRSF) ("Highland Copper" or “Highland” or the "Company") is pleased to provide an update on ongoing engineering and project optimization efforts at its Copperwood project (“Copperwood” or the “Project”) located in Michigan, U.S.A. The results of the optimization work, including the previously announced process plant redesign, are expected to be incorporated into an updated feasibility study (the “Updated FS”).