Edge Copper Intersects 290 ft at 0.40% CuT in Hole ZND0028 Beyond the PEA Design Pit at the Northwestern End of Zonia

Edge Copper Corporation (EDCU) has released assay results from seven additional diamond drill holes at its Zonia Copper Project in Arizona. The principal hole, ZND0028, intersected 290 ft (88.4 m) at 0.40% CuT from a depth of 441 ft, which included a higher-grade interval of 50 ft (15.2 m) at 1.69% CuT. This intersection extends oxide mineralization beyond the current Preliminary Economic Assessment (PEA) Design Pit limit at the northwestern end and below the modeled oxide base.

Other reported holes include infill results, such as ZND0011 (350 ft at 0.31% CuT), ZND0037 (575 ft at 0.26% CuT), and ZND0020 (472 ft at 0.22% CuT). The company’s drilling strategy has shifted to perimeter testing, bringing the total number of holes reported to 27. Edge Copper announced upcoming sulfide zone assays scheduled for Q3 2026, metallurgical testwork for late August, and an updated mineral resource expected in Q4 2026.

Edge Copper Corporation (EDCU) reported results that are incrementally positive, demonstrating mineralization beyond the current pit shell. This finding could modestly expand the resource if multiple holes confirm the trend. However, the grades are not outstanding for a porphyry, and the demonstration of continuity is lacking, as a single hole does not prove a larger volume.

The market had already priced in some exploration success earlier in the year, with the stock rising to $1.03 following initial drill results and a Preliminary Economic Assessment (PEA). Since then, the share price has declined to $0.46, reflecting financing dilution and perhaps waning enthusiasm. The news is unlikely to materially re-rate the stock on its own; it reinforces the existing thesis but does not transform it.

Edge Copper Corporation (EDCU) is a junior explorer and developer focused on the 100%-owned Zonia Copper Project in Arizona, a past-producing heap-leach SX/EW operation situated on private land. The company’s management team includes experienced mine builders with backgrounds at Copper Mountain, Augusta Resource, and Brio Gold, and is supported by a strategic collaboration with GeologicAI.

A Preliminary Economic Assessment (PEA) released in March 2026 outlines an open-pit/heap-leach operation with a 10-year mine life. The project is projected to produce 76 million pounds of copper cathode annually at a C1 cash cost of $2.15 per pound.

The mineral resource, effective January 30, 2026, includes an Indicated category of 194 million tonnes grading 0.25% copper and an Inferred category of 86 million tonnes grading 0.20% copper. Following financing completed in June 2026, the company’s capital structure consists of approximately 167 million shares outstanding, $20 million in cash, no debt, and a market capitalization of approximately C$92 million.