NorthWest Intersects 27.7 Metres of 1.23% Copper and 1.53g/t Gold (2.63% CuEq) at Kwanika Starting at 198 Metres

TORONTO, Nov. 06, 2025  — NorthWest Copper Corp. (“NorthWest” or the “Company”) (TSX-V: NWST) is pleased to announce excellent assay results from the third drill hole of its 2025 expanded diamond drilling program at its 100% owned Kwanika project in British Columbia. Hole K-25-271 successfully intersected multiple copper-gold zones, highlighted by a significant intercept of 27.7 metres grading 1.23 % Cu, 1.53 g/t Au (2.63% copper equivalent 1 , “CuEq”) within the Central Zone. Results to date, including this hole, support management’s belief that the 2023 Preliminary Economic Assessment 2 (the “2023 PEA”) significantly understates the economic potential of the Kwanika project as the 2023 PEA does not reflect the positive impact of targeting higher-grade mineralization within the current mineral resource. Results to date are intersecting these higher-grade zones as expected.

Drill results thus far have met or exceeded expectations.

To highlight, drill hole K-25-271 yielded multiple positive outcomes. Primarily, the hole intersected the up-dip extension of the Central Zone shallower than expected, potentially filling a 100-metre gap in the mineralization between the Pit and Central Zones. Additionally, the hole extended the Western Zone down-dip beyond the Company’s original expectations, confirming that mineralization remains open both laterally and at depth for further expansion. Finally, the hole extended the low-grade mineralization around the Pit Zone by roughly 30 metres towards the west, indicating possible increases to open pit mineral resources.

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