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Historical and recent drilling support a mineralized vector toward a large multi-parameter MT, IP and magnetic target MTP-01; systematic drill testing underway

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VANCOUVER, British Columbia, Sept. 09, 2026 (GLOBE NEWSWIRE) — Pecoy Copper Corp. (“Pecoy Copper” or the “Company”) (TSXV: PCU; FSE: D5E; OTCQB: PCUUF) is pleased to announce an updated integrated geophysical interpretation following the 2026 drill results and the recently completed Spartan magnetotelluric (“MT”) survey at its 100%-owned Pecoy Copper-Gold-Molybdenum-Silver Project (“Pecoy” or the “Project”) in southern Peru.

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Integration of the three-dimensional (“3D”) MT resistivity model with new and historical drilling, geology, induced polarization (“IP”) chargeability and magnetics has identified four principal MT target areas (“MTP-01 to MTP-04”) across and beyond the currently drilled mineralized footprint. The targets include responses associated with the known South Breccia and EDM mineralized zones, together with large or previously untested responses warranting further investigation.

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MTP-01 is the principal untested Northwest opportunity. Immediately southeast, historical PEC-056, PEC-058 and PEC-062 establish a broad mineralized Cu-Mo/EDM domain at MTP-02; while farther northwest, PEC-063 and recently reported PEC26-067 extend mineralized drilling evidence toward MTP-01. PEC26-067 returned 209.0 m grading 0.40% Cu from 15.0 m, including 42.3 m grading 1.01% Cu and 11.1 m grading 1.90% Cu, together with a separate 296.0 m interval grading 0.24% Cu and 0.009% Mo below the historical pit shell to end of hole. PEC26-067 provides an important mineralized vector toward MTP-01 and may have sampled peripheral hydrothermal architecture between the established MTP-02 system and MTP-01; however, it did not directly test the interpreted MTP-01 core.

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Highlights:

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  • Large MTP-01 geophysical response remains largely untested: approximately 1.2 km wide and approximately 1.0 km in vertical extent within the 3D MT model, with coincident IP chargeability and magnetic responses.
  • Historical drilling establishes a mineralized system immediately southeast of MTP-01: PEC-056, PEC-058 and PEC-062 calibrate the broad MTP-02 Cu-Mo/EDM domain, while PEC-063 provides a mineralized step northwest toward MTP-01.
  • Recent PEC26-067 strengthens the Northwest vector: 209.0 m grading 0.40% Cu from 15.0 m, including 42.3 m grading 1.01% Cu and 11.1 m grading 1.90% Cu, plus a separate 296.0 m mineralized interval below the historical pit shell. The interpreted MTP-01 core remains largely untested.
  • Fourth drill allocated to Northwest/MTP-01: the rig has been allocated to the Northwest/MTP-01 program. Current drilling northward, while additional pads are being prepared for systematic MTP-01 testing across multiple sections and elevations.
  • See VRIFY model here: https://vrify.com/decks/23960
  • Register for Pecoy Copper webinar: Thursday September 10th, 11:30am ET. Click here to register.