Highland Copper Completes Phase 1 Engineering and Announces Positive Results from Trade-Off Studies at Its Copperwood Project

VANCOUVER, British Columbia, Oct. 15, 2025 (GLOBE NEWSWIRE) -- Highland Copper Company Inc. (TSXV: HI; OTCQB: HDRSF) (“Highland” or the “Company”) has successfully completed Phase 1 detailed engineering (“Phase 1”) for its 100%-owned Copperwood Project in Michigan, USA. Phase 1 represented a comprehensive re-evaluation of the project, and in key areas, confirmation of overall project design. The work has delivered meaningful improvements to both the process plant and mine, strengthening the overall project, improving its environmental footprint and advancing Copperwood toward Phase 2 detailed engineering (“Phase 2”). Phase 2 will advance engineering to approximately 35-40%, supporting a potential construction decision and technical due diligence for project financing in 2026. Phase 2 will also update capital and operating costs to reflect inflation and other changes since the Feasibility Study.