Prospect Ridge Confirms Discovery Of Copper-Gold Porphyry with Final Drill Results from 100% Owned Camelot Copper-Gold Project in B.C.'s Cariboo Mining District

VANCOUVER, BC / ACCESS Newswire / February 25, 2026 / Prospect Ridge Resources Corp. (the "Company" or "Prospect Ridge") (CSE:PRR)(OTC:PRRSF)(FRA:OED) is pleased to announce assay results from the Company's 100% owned Camelot copper-gold project, located ~33 km from Imperial Metals' Mount Polley mine in British Columbia's prolific Cariboo Mining District.

A total of 2,034 m was drilled in ten holes (CAM25-001 to CAM25-010) that tested a ~1.7 km long prospective geochemical and geophysical trend (Figure 1). Visual core and portable X-ray fluorescence spectrometer (pXRF) results for all ten holes were disclosed in news releases dated December 4 and 22, 2025 while assays from DDH CAM25-09 were provided in a news release dated January 22, 2026. This news release provides assay results from the remaining nine holes, copper (Cu) and gold (Au) equivalent calculations for CAM25-009, and new assay results from infill sampling of unassayed portions from historical diamond drill hole LL-22-01.

The 2025 drill program targeted historical Cu-in-soil anomalies coincident with chargeability highs as well as, in some cases, moderate to high resistivity and magnetic anomalies. Exploration targets were interpreted in the context of an alkalic porphyry model, where such coincident geophysical and geochemical features may indicate pyrite-chalcopyrite mineralization associated with magnetite-bearing potassic alteration. The target area is covered by till and had not been drilled until this 2025 program, with historical hole LL-22-01 drilled just northeast of the anomalous area.

Samples of core from CAM25-009 will be on display at the Company's booth (#2412B) at the Prospector and Developers Association of Canada (PDAC) conference on March 3-4, 2026, in Toronto, Ontario.

Len Brownlie, Ph.D., CEO of Prospect Ridge noted "Through the diligent efforts of our Board, Technical Advisory Committee and Equity Exploration we have discovered a copper- and gold-mineralized alkalic porphyry system with a large geophysical footprint. Highlights of this discovery include the results of hole CAM25-009 as well as infill sampling of hole LL-22-01 (drilled away from the geophysical target), both of which returned between 150 to 160 meters of core that averaged 0.1 g/t Au and 0.1 % Cu. Au-to-Cu ratios determined from core assays, indicate a positive 1:1 correlation between gold (g/t) and copper (%) grades, confirming that gold may represent a meaningful by-product of copper mineralization.

Results of the program have also improved understanding of geophysical and geological signatures that best correlate with Cu-Au mineralization. For example, copper mineralization in hole CAM25-009 is associated with chargeability highs on the shoulder of a moderate magnetic anomaly, providing us with a newly recognized targeting criterion. Furthermore, the dominance of pyrite over chalcopyrite suggests that we have not yet found the core of the porphyry system that is theorized to have stronger (calc-)potassic alteration and higher Cu-Au grades.

This inaugural drill program, where nine of ten holes intercepted at least short intervals of copper mineralization, has advanced our knowledge and understanding of our targeting criteria and provided hints that Camelot maybe a potential polyphase porphyry cluster. Going forward, areas of high chargeability (>27 mV/V) on the shoulders of moderate magnetic anomalies will be a high priority target for deeper drilling at Camelot. We look forward to planning a follow-up work program for Camelot in 2026 that entails advanced vectoring techniques to ensure a productive drill program".

Figure 1: Historic and current drill holes and IP data compilation over airborne total magnetic intensity (TMI), after Bakness, 2023ⁱ

Drilling Results

The discovery of a new copper-gold porphyry system at Camelot was highlighted by drill hole CAM25-009 with assays that returned 0.07 g/t Au and 0.08 % Cu over 156.6 meters from 23.4 meters depth, as described in a news release dated January 22, 2026. Assay results from this hole are again presented in Table 1, which now also includes calculated gold (AuEq) and copper (CuEq) equivalent values based on metal prices of $3,000/oz gold, $4.00/lb for copper, and $30/oz silver, and assumed recoveries of 80% for each metal.

Historical drill hole LL-22-01 was collared from approximately the same location as CAM25-009 but drilled in the opposite direction and to a depth of 250 meters. Original sampling was continuous from the surface to a core depth of 64 meters, then spaced to one 2 m sample for every 15 meters of core in the lowermost 186 meters of the hole (Figure 2). Infill sampling and assay in this lowermost 186 m of drill core were integrated with historical sampling to return a composite of 0.07 g/t Au and 0.06 % Cu over 153 meters, starting from 5 meters core depth.

Table 1: Newly reported assay results from CAM25-001 to 008, 010, and infill sampling of LL-22-01, as well as Au and Cu equivalencies for previously released CAM25-009.