• Highland Copper advanced optimization work at its Copperwood copper project in Michigan, targeting an updated feasibility study in Q1 2027.
• Engineering review weighs lower cut-off grades using a long-term copper price of about US$4.8 per pound to expand mineable resources.
• Bulk ore sorting studies could add the Upper Copper Bearing Sequence to mine plans, covering 10,200,000 tonnes of measured and indicated resources at 1.1% copper.
• Process plant redesign targets 87.6% copper recovery versus 86% in the 2023 feasibility study, with lower energy and reagent costs.
• FEED is expected to reach 40% completion in 2026, positioning the project for financing and technical due diligence.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Highland Copper Company Inc. published the original content used to generate this news brief via GlobeNewswire (Ref. ID: 202606030700PRIMZONEFULLFEED9731039) on June 03, 2026, and is solely responsible for the information contained therein.