NorthWest Reports Results from Two Holes at Its Kwanika Property Highlighted by 26 Metres of 0.72% Copper and 1.30 g/t Gold (1.91% CuEq) from 268 Metres TORONTO, Nov. 27, 2025 (GLOBE NEWSWIRE) -- NorthWest Copper Corp. (“NorthWest” or the “Company”) (TSX-V: NWST) is pleased to announce additional positive drill results from two holes from its 2025 program at the Company’s 100% owned Kwanika project in British Columbia. Drill hole K-25-281 delivered an excellent result highlighted by an intercept of 26 metres grading 0.72% Cu, 1.30 g/t Au (1.91% copper equivalent 1 , “CuEq”) confirming the Company’s understanding and expectations of higher-grade zones within the Kwanika Central Zone. Both drill holes also delivered broad intervals of near-surface copper-gold mineralization, strengthening the Company’s confidence in the initial phase of the project’s open pit potential. The two drill holes achieved several key objectives including: K-25-281 extended the upper Central Zone by 30 metres to the northeast, in an area that is significantly wider than expected, with the Central Zone remaining open to the northeast, K-25-281 confirmed the presence of higher-grade mineralization in the lower Central Zone over substantial thicknesses, Increased understanding of a potential link between the Central Zone and Pit Zone, and Improved confidence in the continuity of near-surface mineralization over significant widths. By successfully achieving these objectives, the results underscore the potential to define and expand on the size of higher-grade mineralization within the Central Zone. This supports the Company’s strategy of focusing on high-grade domains within the existing mineral resource to enhance the economics of a future Preliminary Economic Assessment (“PEA”). In parallel, the consistent near-surface mineralization encountered in the Pit Zone reinforces the opportunity for a high-grade starter pit, which could provide a strong foundation for further improvements in the economics of a future PEA. Paul Olmsted, CEO of NorthWest stated: “In 2025, the Company changed its strategy to prioritize higher-grade zones within the existing mineralization at Kwanika. Results from the first seven holes of the 2025 exploration program have largely met or exceeded expectations, reinforcing the potential for meaningful grade improvements by focusing on higher-grade domains. The program to define these higher-grade zones is progressing exceptionally well, metallurgical test work is advancing rapidly, and we anticipate announcing initial results before the end of the year. This information will be used to support an updated mineral resource estimate, which will form the basis for evaluating alternative top-down underground mining methods. Our objective is clear: to deliver a more capital-efficient and economically robust open pit and underground development plan in an updated PEA compared to the 2023 PEA 2 .” Drill Hole Highlights: K-25-281 Pit Zone: 38 metres of 0.48% Cu, 0.12g/t Au (0.61% CuEq) from 44 metres 26 metres of 0.51% Cu, 0.36g/t Au (0.85% CuEq) from 150 metres Central Zone: 40 metres of 0.63% Cu, 0.95 g/t Au (1.50% CuEq) from 254 metres including: 26 metres of 0.72% Cu, 1.30 g/t Au (1.91% CuEq) from 268 metres. K-25-282 Pit Zone: 75.7 metres of 0.93% Cu, 0.30g/t Au (1.23% CuEq) from 22.3 metres including: 43.7 metres of 1.26% Cu, 0.41g/t Au (1.66% CuEq) from 22.3 metres Geoff Chinn, VP Business Development and Exploration of NorthWest added: “It is encouraging to see both holes intersect higher-grade, near-surface mineralization over significant widths, well suited to support a potential starter pit. In addition, a previously unmodelled higher-grade copper zone is emerging immediately south of Pit Zone 5, potentially improving on our understanding of mineralization within the broader Pit Zone. Hole K-25-281 supports our interpretation of two wide, continuous higher-grade mineralized intervals in the Central Zone grading between 1.5% and 2.5% CuEq over combined true thicknesses between 30 and 45 metres separated by late dykes. This hole also intersected a wide upper Central Zone interval that extends the zone by at least 30 meters towards the northeast. We also observe a clear trend of increasing gold-to-copper ratios from east to west in the Central Zone, with the Pit Zone showing a similar pattern, although rotated from south to north. This progression suggests a potential link between the two zones, and we expect that additional drill results in the coming weeks should help clarify this relationship.” Kwanika Exploration Program On April 10, 2025, NorthWest announced a refined model for its flagship Kwanika project (“Target Model”), highlighting three key higher-grade zones: the Pit, Central and Western Zones. These zones target grades of 1.5% to 2.5% CuEq over combined true thicknesses of 30 to 45 metres, to be assessed against a more selective top-down bulk underground mining method. The 2025 exploration program is des