Toronto, Ontario--(Newsfile Corp. - June 25, 2026) - Carolina Rush Corporation (TSXV: RUSH) (OTCQB: PUCCF) ("Carolina Rush" or the "Company") reports results from B26C-038 ("Hole 38"), the second of three deep holes drilled at the Brewer Gold-Copper Project in South Carolina, USA under its exploration earn-in agreement with OceanaGold Corporation (TSX: OGC) (NYSE: OGC) ("OceanaGold") (see news release dated September 16, 2025).
Results from Hole 38 provide the first evidence of porphyry-style copper-gold mineralization and alteration below Brewer's extensive lithocap - a zone of intensely altered rocks that can form above copper-gold porphyry systems. Integrated with the deeper drilling, the results strengthens the Company's interpretation that Brewer is a structurally tilted porphyry copper-gold system. The higher-temperature core of the system is interpreted to be down-dip and northwest of the former mine area, and untested by drilling to date.
Highlights
Hole 38 represents the first drill hole at Brewer to intersect copper-gold mineralization below the lithocap, marking a significant change from previous deep drilling at Brewer;
Hole 38 intersected several intervals of anomalous copper-gold mineralization, including:
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60 meters of 681 ppm Cu and 0.24 g/t Au from 1,027 meters; and
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68 meters of 470 ppm Cu and 0.15 g/t Au from 936 meters;
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Individual samples, typically 2 meters in length, returned values up to 0.15% Cu and 0.68 g/t Au;
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Copper mineralization is dominated by chalcopyrite and hosted within chlorite and minor potassic alteration (with relict biotite and early quartz veins), interpreted as direct evidence porphyry style alteration and copper-gold mineralization;
Hole 38, drilled to a depth of 1,374 meters, has extended Brewer's alteration system to >1km below surface and confirms the Brewer system has been tilted southeastward, and now dips shallowly to the northwest;
Results continue to strengthen the Company's interpretation that the core of the copper-gold porphyry system is to the west and northwest and remains untested by drilling.
Reported intervals are downhole lengths, true widths have not yet been determined.
Carolina Rush CEO Layton Croft stated: "Hole 38 represents an important step forward in our understanding of the Brewer system. Unlike hole 37, Hole 38 intersected broad zones of chalcopyrite-bearing copper-gold mineralization below the lithocap within a newly identified chlorite and minor potassic alteration zone that we believe represents a vector toward a potential porphyry source. Intersecting mineralization below the lithocap is particularly important, as many copper-gold porphyry systems worldwide are recognized once drilling penetrates beneath these intensely altered upper zones into the underlying mineralized system. While the grades intersected to date are not economic, their importance is as a vector - they point down-dip to the northwest, toward the higher-temperature core of the system, which has not yet been drilled. These results significantly strengthen our exploration model and provide increasing evidence that Brewer hosts an extensive hydrothermal system with potential for deeper copper-gold mineralization to the west and northwest."