C3 Metals intersects 164.6 m at 0.35% CuEq at Khaleesi, Peru

Toronto, Ontario--(Newsfile Corp. - September 15, 2026) - C3 Metals Inc. (TSXV: CCCM) (OTCQB: CUAUF) ("C3 Metals" or the "Company") is pleased to announce results from three additional holes drilled at its 100%-owned Khaleesi copper project ("Khaleesi" or "the Project") in southern Peru. Drilling has further extended mineralization along section lines KHZ5950 and KHZ5750 (Figure 1), with drill hole KHZ5825-004 intersecting broad intervals of copper mineralization (Table 1).

Khaleesi Highlights

Mineralization expanded below glacial till cover: KHZ5825-004 intersected pervasive porphyry- and skarn-style alteration with primary and secondary copper mineralization. A 119.5m zone of diorite reported 0.24% copper, 0.035 g/t gold, 0.79 g/t silver, 47 ppm molybdenum (0.30% CuEq) from approximately 48m vertical depth. This was followed downhole by a 164.6m intercept of pyroxene and magnetite skarn that reported 0.28% copper, 0.028 g/t gold, 0.93 g/t silver, 51 ppm molybdenum (0.35% CuEq) from approximately 280m vertical depth (304.5m downhole depth).

Mineralization confirmed to a vertical depth of approximately 500m and over 500m in east-west dimension (Figure 2).

Dan Symons, President and CEO, stated , "We continue to drill broad intervals of copper mineralization at grades that are very consistent with the mineral reserve grades reported from the nearby Constancia mine operated by Hudbay Minerals. A mineralized intrusive and skarn zone to a depth of 500m immediately beneath a thin layer of glacial till cover has now been established. This zone is currently more than 500m in east-west dimension and remains open to the north, east and west. Importantly, a combination of new gravity and magnetic geophysical data is correlating extremely well with magnetite skarn hosted copper mineralization in drilling. This new geophysi