Blackstone Minerals Ltd Partners with KCA Site Services to Unlock Cost-Efficient, Deep Copper-Gold Exploration at Mankayan
Tuesday, July 29, 2025
at
8:29 am
Blackstone Minerals Limited has partnered with KCA Site Services to acquire a high-performance diamond drill rig under a hire-to-buy agreement. This strategic move accelerates exploration and cost-efficiency at its flagship copper-gold project in the Philippines, echoing proven success in Vietnam.
Blackstone Minerals Limited has entered into a strategic partnership with KCA Site Services to jointly acquire a high-performance diamond drill rig for its premier Mankayan copper-gold porphyry project in the Philippines. The drill rig, procured through a hire-to-buy arrangement, is engineered to drill to depths of up to 1,800 meters—exceeding previous performance by over 300 meters—and is set to enhance exploration efficiency while lowering drilling and geophysical costs.
Building on a proven track record from its Ta Khoa Nickel Project in Vietnam, where the company achieved drilling costs as low as US$50 per meter by owning rigs and utilizing local expertise, Blackstone Minerals Limited aims to replicate this cost-effective model at Mankayan. The partnership also capitalizes on KCA Site Services’ extensive experience in managing equipment hire, labour support, and operational deployment, which is expected to streamline the transition to the new drill rig and optimize capital expenditure.
The project is being orchestrated under the guidance of experienced drilling consultant David Kinnersley, and the initiative forms a key component of the company’s broader strategic vision following its merger with IDM International. With Mankayan recognized as one of Asia’s largest undeveloped porphyry systems, the move represents a significant step in unlocking substantial resource potential and enhancing overall operational scale.
Bullish sentiment: The collaboration and advanced equipment investment signal strong prospects for improved exploration outcomes, operational efficiency, and cost savings. The enhanced drilling depth capability may allow faster and more thorough resource evaluation, potentially driving significant shareholder value as the project progresses.
Bearish sentiment: Conversely, success hinges on replicating previous cost models in a new setting, and any unforeseen operational challenges or delays in equipment mobilization could impact project timelines and financial performance. Investors will be watching closely to see if the planned efficiencies materialize at Mankayan.