Carolina Rush Reports Final Results of Initial Brewer Porphyry Drill Program, Intersects Near-Mine Epithermal Gold-Copper Mineralization

Carolina Rush Corporation (RUSH) released results on July 13, 2026, from the final hole of its initial deep drill program at the Brewer Gold-Copper Project, designated Hole B26C-039. The drilling encountered significant intercepts, including 51.15 metres grading 0.62 g/t Au and 0.22% Cu from 214.0 metres downhole, which includes a higher-grade interval of 12.12 metres grading 1.04 g/t Au and 0.60% Cu from 217.5 metres. This hole serves as a 50-metre step-out from the nearest hole in the current Mineral Resource Estimate, demonstrating lateral continuity outside the existing resource footprint. The mineralisation is hosted in diatreme breccia, with gold and copper (chalcocite) associated with hydrothermal alteration.

The release summarizes the broader three-hole program. Hole 37 encountered deep porphyry-style veining with low-grade copper. Hole 38 intersected sub-economic porphyry-related Cu-Au mineralisation below the lithocap. Hole 39 expands the known near-mine epithermal resource. With these results, OceanaGold’s minimum US$1.5M Q2-2026 exploration commitment has been satisfied.

Carolina Rush Corporation (RUSH) is a junior explorer operating a pre-resource, small indicated/inferred oxide/breccia deposit near its mine, alongside a grassroots deep porphyry target.

The company reported results from Hole 39, which fell outside the current resource boundary. The deposit currently holds approximately 402 koz of indicated/inferred resources. The intercept from Hole 39 returned a grade of approximately 0.36 g/t Au, which is only marginally above the existing resource grade. The 50 m step-out adds limited ounces, likely in the tens of thousands, and does not significantly transform the project.

Market reaction has been mixed. The stock price declined from approximately C$0.20 in late January 2026 to between C$0.09 and C$0.11 following sub-economic results from deeper porphyry holes 37 and 38. The market had previously priced in a potential porphyry discovery, a narrative that has been damaged by those earlier results. While this near-mine step-out is incremental and positive news that may help stabilize the share price, it does not restore the lost porphyry premium.

The overall investment thesis continues to hinge on future deep drilling funded by OceanaGold.

Carolina Rush Corporation (RUSH) is a Canadian junior explorer listed on the TSX Venture Exchange and OTCQB (PUCCF) that focuses on the Brewer Gold-Copper Project in Jefferson, South Carolina. The project is a former high-sulphidation epithermal gold mine that produced approximately 178,000 ounces of gold from oxide heap leach operations until 1995. The current exploration model targets a porphyry copper-gold system at depth beneath the existing epithermal lithocap.

A mineral resource estimate completed in March 2025 at a 0.4 g/t gold cutoff indicates 192,000 ounces of gold and 16.7 million pounds of copper in the indicated category, and 210,000 ounces of gold and 8.3 million pounds of copper in the inferred category. Backfill material adds an additional 139,000 ounces of inferred gold. While the presentation’s grade numbers contain likely typographical errors, actual grades are approximately 0.36 g/t gold and 0.05% copper based on the contained metal figures.

OceanaGold may earn up to an 80% interest in the project by spending US$20 million by the end of 2030, with the Stage 1 minimum of US$1.5 million already satisfied. The Haile Gold Mine is located 13 km away.

Carolina Rush has approximately 90.8 million shares outstanding, 31.7 million warrants exercisable at approximately C$0.205, and 6.1 million options, resulting in a fully diluted share count of 128.5 million. The company held approximately C$3.0 million in cash as of Q1-2026 but is reliant on partner funding.