Northstar Gold Corp. announced assay results from the remaining 3 Phase I diamond drill holes recently completed at the historic Cam Copper Mine on the Company's 100%-owned Miller Copper-Gold Property, situated 18 kilometres southeast of Kirkland Lake, Ontario. Cam Copper is a road accessible shaft mine and small-scale, past producer of high-grade 'direct shipping' copper ore centred on the historic Boston Creek Copper Trend.

Cam Copper Mine is centred on a newly recognized high-grade "Besshi-type" volcanogenic massive sulphide (VMS) copper system situated at the northwest end of a 0.9 km long southeast trending belt of VMS horizons. Besshi-type VMS deposits are an important global source of base metals, simplistically characterized as vented, broad sheet-like layers of magnetite, iron-copper-lead-zinc-arsenic sulphides, cobalt, sulphosalts, silver and possibly gold deposited on an ancient sea floor, hosted in volcano-sedimentary rock packages. Northstar completed 720 metres of drilling in 4 diamond drill holes (CC01-23 to CC04-23) at Cam Copper Mine between October 20th and October 30th, 2023.

The Company reports all 4 drill holes intersected lenses of Cu-rich volcanogenic massive sulphides, including massive and stringer chalcopyrite in drill hole CC03-23 grading 14.8% Cu over 2.45m from 116.55m to 119m in Zone 2. Zones 1, 3 and 4 also remain open along strike and at depth. The Company reports the following assay highlights from the Cam Copper Phase I drilling program: Zone 1.12% Cu over 3.6m from 25.0m to 28.6m including 19.45% Cu and 14.85 g/t Ag over 0.5m from 28.1m to 28.6m in CC01-23. Zone 2. possible Hydrothermal Vent.

Semi-massive sulphides with milled cherty fragments in Zone 2 (Photo 4), averaging 8.17% Cu over 1.5 metres from 178.0m to 179.5m in drill hole CC02-23, 80 metres below the 200' level of the historic mine workings, suggests close proximity to a nearby seafloor hydrothermal vent, in an area never before drill tested. Evidence of massive and stringer Chalcopyrite over 2.45m in adjacent drill hole CC03-23 strongly implies the possibility of significant Zone 2 vertical and down plunge expansion potential to the southeast. Zone 3 semi-massive chalcopyrite from DDH CC01-23 grading 5.91% Cu over 1.5m.

Hole No., Collar UTM - Zone 17, Azimuth (Degrees), Dip Angle (Degrees), From (m), To (m), Core Length (m), Cu (%), Zn (%), Ag (g/t), Comments, CC01-23, CC01-23, 580634E, 5316828N, -48, 25, Incl., 28.1, 77.8, 107, 135, incl., 135.5, 28.6, 28.6, 28., 28.6, 78.3, 107.75, 136.5, 136.5, 136., 136, 3.6, 3.6, 5.6, 3.5, 0.5, 0.75, 1.50, incl., 0.5, 3.12, 19.45, 2.55, 12.71, 5.91, 9.92, 0.62, 14.85, 16.47, 16.47, Zone 1", Massive cpy QCV w/cpy Zone 3 "Estimated true widths are between 0.64 (64%) and 0.70 (70%) of apparent widths. Northstar is positioning to conduct a Phase 2 Cam Copper drill program to test the down plunge extension of mineralized zones, prioritizing expansion of the Zone 2 massive sulphide lens and stockwork intersected in DDH CC03-23. Assay results of the 19 samples ranged from 0.99% - 31.31% - 31.