Pecoy Copper Phase 1 Metallurgical Review Identifies Potential Step-Change in Gold Recovery and Optimization Opportunities

About this update from Pecoy Copper Corp.

VANCOUVER, British Columbia, May 26, 2026 (GLOBE NEWSWIRE) -- Pecoy Copper Corp. (“Pecoy Copper” or the “Company”) (TSXV: PCU; FSE: D5E; OTCQB: PCUUF) is pleased to announce the results of a Phase 1 independent metallurgical review completed by Global Resource Engineering Ltd. (“GRE”) on the Company’s Pecoy copper-gold-molybdenum-silver project in Peru (“Pecoy” or the “Project”). Historical metallurgical work at Pecoy was designed to optimize copper recovery and concentrate quality. GRE’s Phase 1 review re-examined the historical test work, metal deportment and flotation performance through a broader payable-metals lens, reflecting the potential contribution of gold, silver and molybdenum in the current commodity price environment. The review identified opportunities to improve gold recovery while maintaining a marketable copper concentrate grade and commercially acceptable concentrate quality. The Phase 1 review outlines: Table 1: Updated Phase 1 Base Case Recovery Estimates Identified for Phase 2 Validation *Primary weighted average is based on the South Breccia and Primary Granite domains and does not represent updated recoveries for oxide, supergene, enriched, transitional or leached material. The updated recovery estimates remain subject to validation through Phase 2 metallurgical test work. “This work represents an important evolution in how we evaluate Pecoy,” said Vincent Metcalfe, President and CEO of Pecoy Copper. “Historical metallurgy was successful in demonstrating strong copper recoveries and a marketable concentrate, but it did not capture the full value potential of the project. Our updated analysis supports a clear pathway to materially improve precious metal recoveries while maintaining copper concentrate quality, and introduces the potential for a separate molybdenum product, effectively converting previously unrecovered metal into meaningful value. This work positions Pecoy as a project with multiple revenue streams and enhanced economic leverage.” Key Findings from Phase 1 Review A Material Potential Step-Change in Gold Recovery GRE’s review indicates that the existing metallurgical work, while limited, supports a potential pathway to enhanced gold recovery through modifications to the flotation flowsheet and operating conditions. In particular, GRE identified the potential benefit of incorporating a flash flotation stage and adjustin...

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