공시 • Jan 22
NorthIsle Copper and Gold Inc. Provides Update on Its Progress At the North Island Project During 2025
NorthIsle Copper and Gold Inc. announced discussion of Drill Results: During 2025, the Company completed 20,297 metres of drilling across 58 holes, comprising 9,478 metres across 26 holes of infill drilling, 9,007 metres across 26 holes of exploration drilling, and 1,811 metres across 6 holes of geotechnical drilling. 2025 drilling activity focused principally on the Northwest Expo, Red Dog, and West Goodspeed areas. The 2025 exploration program was designed with two primary objectives: Resource definition in support of the North Island PFS; and advance the understanding of property-wide geology and the exploration thesis across the North Island porphyry belt. At Northwest Expo, 9,867 metres of drilling across 26 holes were completed in 2025. The Company’s activities at Northwest Expo focused on infill drilling with the objective of upgrading Inferred Resources to the Indicated category in support of the North Island PFS. Preliminary XRF data from Veracio TruScan scanning indicate continuity within the core of the inferred resources intersected by infill drilling. Assay results for the final 9,867 metres of drilling at Northwest Expo are targeted for release during First Quarter 2026. 1,761 metres across 7 holes were drilled at Red Dog during 2025, where infill drilling is ongoing. Similar to Northwest Expo, the Company’s activity at Red Dog focused on infill drilling to upgrade resources in support of the North Island PFS. Preliminary results from infill drilling at Red Dog, supported by XRF analysis using Veracio TruScan, have confirmed mineralization within the Inferred Resources and identified additional zones of copper mineralization. These new zones will be further evaluated upon completion of the drilling campaign and receipt of assay results from the approximately 3,000 metres of planned drilling. Assay results for the final 3,000 metres of drilling at Red Dog are targeted for release in Second Quarter 2026. Drilling at West Goodspeed has outlined a broad zone of copper-gold mineralization extending from near surface to depth across the central and northwestern portions of the system. 6,653 meters across 20 holes were drilled at West Goodspeed in 2025. To date, mineralization has been outlined over more than 1.2 kilometres of strike and to a vertical depth of approximately 280 metres below surface (see news release “Northisle Announces Continued Growth of West Goodspeed Target to over 1.2km Strike with Additional High-Grade Intervals”, dated November 17, 2025). The 2025 results confirm the extent of the system and copper and gold grades observed in previously disclosed drilling, while also providing a better understanding of the lithological and structural controls that govern mineralization in this part of the North Island Project. The Company is assessing the potential for a future drilling campaign to test further extensions of mineralization to the east and at depth. At the Cougar target, the Company identified copper-gold mineralization in three holes with a total of 1,275 metres of drilling completed in 2025. This drilling intersected multiple zones of copper mineralization across several holes. Hole NW25-38 returned two mineralized intervals, including 18.0 metres grading 0.19% Cu Eq., followed by a broader interval of 29.9 metres grading 0.36% Cu Eq. Hole NW25-39 intersected three mineralized intervals, comprising 14.0 metres grading 0.23% Cu Eq., 29.7 metres grading 0.37% Cu Eq., and a deeper interval of 29.7 metres grading 0.34% Cu Eq. Hole NW25-40 returned a continuous mineralized interval of 42.0 metres grading 0.31% Cu Eq. These results confirm the presence of copper mineralization at Cougar, a target initially outlined by a magnetic anomaly located approximately 1.0 kilometres northeast of NW Expo and 2.3 kilometres northwest of Red Dog (see news release “Northisle Provides Update on Largest Ever Field Program at North Island”, dated October 6, 2025). The proximity of hole EC-242, which intersected 61.0 metres grading 0.30% Cu Eq. from 210.3 metres and 23.2 metres grading 0.46% Cu Eq. from 278.6 metres (see news release “Northisle Announces Positive Results of Surface Exploration Program”, dated January 23, 2023), and which is located approximately 280 metres west of the Cougar target, indicates a broad footprint of copper-gold mineralization in this sector. An assessment of the exploration potential at Cougar is currently underway. Regional Exploration Program: Stream Sediment Program: Northisle plans to follow up on stream sediment anomalies identified during the 2025 regional sampling program. This work will focus on evaluating anomalous signatures that may indicate the presence of previously unrecognized porphyry-style mineralization and will be used to further refine the ranking of priority areas (see news release “Northisle Provides Update on Largest Ever Field Program at North Island”, dated October 6, 2025). Results from this follow-up stream sediment program are expected to support the advancement of the highest-priority areas to drill-ready targets for evaluation in 2026. District-Scale 3D Geological Modeling: Northisle continues to advance its district-scale 3D geological model through the integration of regional geophysical surveys with an improved understanding of porphyry-style mineralization across its principal deposits (see news release “Northisle Provides Update on Largest Ever Field Program at North Island”, dated October 6, 2025). Geophysical inversions are constrained using available geological information, including surface mapping and drilling data from the 2025 campaign. The evolving district-scale models are being used to evaluate the potential for extensions of known porphyry mineralization at depth at NW Expo, Red Dog, West Goodspeed, and Hushamu, as well as to identify other areas within the district that exhibit geophysical signatures comparable to those associated with known mineralization. 2026 Property-wide Exploration Plan: Northisle plans to continue the systematic exploration of its property in 2026, pursuing two primary objectives: improve the geological understanding and expand the mineral inventory of the North Island Project in support of the North Island PFS; further evaluate the regional potential of the 50-kilometre North Island porphyry district. To support the North Island PFS, the Company intends to evaluate potential of new target areas within and nearby the Northwest Corridor, including Cougar and Hep, as well as the extension of existing deposits and targets. In principle, the Company’s exploration activities will focus on identifying: (i) additional porphyry-style mineralization, and (ii) higher grade material, which has the potential to be incorporated into the North Island Project PFS.
