Mr. Paul Olmsted reports

NORTHWEST COPPER ADVANCES 10,000 METRE DRILL PROGRAM AS UPDATED PEA NEARS COMPLETION

Northwest Copper Corp. has provided a corporate update as it enters an active second half of 2026. Northwest remains focused on two key priorities at its Kwanika-Stardust project: advancing its 10,000-metre exploration program at Kwanika and completing the updated preliminary economic assessment.

"We have an exciting period ahead for Northwest," said Paul Olmsted, chief executive officer of Northwest. "We are focused on delivering several significant milestones in the coming weeks. More than 6,500 metres of our 2026 exploration program have now been completed, initial assay results are expected shortly and our updated PEA is nearing completion. Together, these initiatives are designed to demonstrate the potential of Kwanika-Stardust and provide a clear path toward the project's next stage of development."

Exploration at Kwanika

Northwest's fully financed 2026 exploration program at Kwanika continues to advance, with more than 6,500 metres of drilling completed through the end of July. The program is designed to expand and upgrade Kwanika's mineral resources in both the Western and Pit zones.

The company remains on track to complete its targeted 10,000-metre program, with drilling expected to continue through the end of the 2026 field season. Initial assay results are expected in late August or early September. Results from the program are expected to enhance Northwest's understanding of the mineralized system, with the objective of upgrading and expanding Kwanika's mineral resources and informing future exploration programs, resource updates and more advanced economic studies.

Updated PEA

The company's immediate focus is on completing the updated PEA. Engineering, mine planning and economic evaluations are nearing completion, and the company remains on track to complete the study in the coming weeks. The study will help define the next phase of development by highlighting optimization and exploration opportunities and providing a framework for future resource growth and engineering studies.

Technical aspects of this news release have been reviewed, verified and approved by Geoff Chinn, PGeo, vice-president, business development and exploration, for Northwest, who is a qualified person as defined by National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

About Northwest Copper Corp.

Northwest is a copper-gold exploration and development company with a pipeline of advanced and early-stage projects in British Columbia, including Kwanika-Stardust, Lorraine-Top Cat and East Niv. With a robust portfolio in an established mining jurisdiction, Northwest is well positioned to participate in strengthening global copper and gold markets. The company is committed to responsible mineral exploration, working collaboratively with first nations to help ensure future development incorporates stewardship best practices and respects traditional land use.

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