Blackstone Minerals Limited Unveils High-Grade Copper-Gold Discoveries at Mankayan Project Following $22.6M Capital Boost
Wednesday, July 9, 2025
at
9:09 am
Blackstone Minerals Limited reports promising new surface discoveries at its Mankayan copper-gold project in the Philippines. Fresh rock-chip assays—up to 6g/t gold and 1.9% copper—are driving expanded mapping and drilling plans, further enhancing the potential of this globally significant, undeveloped deposit.
Blackstone Minerals Limited has revealed promising new developments at its Mankayan Copper‐Gold Project in Northern Luzon, Philippines. The company’s technical team has identified multiple occurrences of high‐grade surface mineralisation adjacent to the large-scale Mankayan deposit. Historical rock chip data from the area has returned assays of up to 6 g/t gold and 1.9% copper in samples such as CS-4, with several other samples also showing encouraging grades. This adds significant value to the overall interpretation of the project’s potential.
The announcement highlights recent drill results, including an interval of 432 meters graded at 1.25% copper equivalent and a more concentrated section of 210 meters at 1.60% copper equivalent. These interval estimates are based on established metal prices and recovery rates, further underlining the technical robustness of the exploration results. The company is set to commence its maiden drill program at Mankayan, with plans to expand its detailed mapping, surface sampling, and geophysical surveys using magnetics, induced polarisation, and electromagnetics.
Strategically, Blackstone Minerals Limited is leveraging its newly completed merger with IDM International and a successful capital raise of $22.6 million. The company now has the resources to accelerate exploration and unlock the district-scale potential of this globally significant copper-gold porphyry deposit. The project’s dual development optionality, allowing for both selective high-grade mining and bulk tonnage approaches, further enhances its long-term operational flexibility in a mining-friendly jurisdiction with established infrastructure and a well-regarded regulatory environment.
Bullish vs Bearish Sentiment: The recent developments carry a bullish tone for Blackstone Minerals Limited. The discovery of high-grade surface mineralisation near an established deposit and the positive drill intercepts bolster investor confidence in the project’s scaling potential, while the strategic merger and strong financial position support an aggressive exploration agenda. However, caution is warranted as the success of future drilling programs and further resource definition will ultimately determine the project’s economic viability, and market fluctuations in base and precious metals continue to present inherent risks.