Northisle Reports Additional Results from 2025 Drilling at West Goodspeed at its North Island Project

Northisle Copper and Gold Inc. has released additional drilling results from its 2025 exploration campaign at the West Goodspeed target within its North Island Project in British Columbia. The latest batch of six drill holes continues to demonstrate the presence of wide mineralization intervals near surface, complemented by additional high-grade intervals at depth, reinforcing the geological continuity of the deposit.

The exploration program has successfully expanded the known mineralized footprint, with the company confirming mineralization across a corridor spanning more than 1,000 meters in strike length. This represents a significant expansion of the known mineralized zone and demonstrates the potential scale of the West Goodspeed-Red Dog mineralized system. Notably, the company has received results from only 50% of the exploration drilling completed in this corridor, suggesting substantial additional data is pending that could further enhance the resource understanding.

The positive results have provided management with sufficient confidence to expand the drilling program to areas northwest of West Goodspeed, indicating a systematic approach to testing the broader mineralized system. This methodical exploration strategy suggests the company is building toward a more comprehensive understanding of the deposit's geometry and grade distribution, which will be critical for future resource estimation and development planning.

For the broader copper and gold exploration sector, these results highlight the continued potential for significant discoveries in British Columbia's established mining districts. The combination of near-surface mineralization and deeper high-grade intervals presents an attractive exploration profile that could support both open-pit and underground mining scenarios, depending on future development studies.