Blackstone Confirms High-Grade Copper-Gold Core at Mankayan Project.

Blackstone Minerals Ltd. (ASX: BSX) has announced strong assay results from IDM International’s first drillhole (CDH-61) at the Mankayan copper-gold porphyry project in the Philippines. The hole intersected 608m at 0.89% CuEq, including 346m at 1.12% CuEq, confirming the presence of a high-grade core. Though drilled for metallurgical and geotechnical testing—not full resource delineation—the hole ended in mineralisation, highlighting further potential.

Strategically located near major mines and existing infrastructure, Mankayan is considered one of the most promising undeveloped copper-gold systems globally. The project benefits from an open mineralised system, development optionality, and favourable jurisdiction. Blackstone plans to advance exploration, target new zones, and potentially deploy a low-capex starter operation. Supported by previous world-class intercepts and Blackstone’s experience in base metals development, the Mankayan project is well-positioned to meet rising demand for copper and gold while offering scalable, high-return growth opportunities.

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