AIC Mines has successfully intersected the Jericho copper mineralisation from the Eloise decline, confirming an underground connection between the existing Eloise copper mine workings and the Jericho deposit in Queensland. This significant development, achieved through the Eloise copper mine access drive, bypasses the need for a new shaft at Jericho and allows AIC Mines to leverage existing infrastructure, potentially accelerating project development and reducing capital expenditure.
This breakthrough represents a crucial step in integrating the Eloise and Jericho copper assets. By accessing Jericho via the existing decline, the company can tap into Eloise’s ventilation, power, and dewatering systems. This integration is expected to streamline operations, facilitate coordinated ground control, and enable a phased production ramp-up across both deposits. The ability to share these essential services significantly reduces the capital investment that would have been required to develop Jericho as a standalone operation—a common approach in mining where existing infrastructure unlocks value in satellite deposits.
The development pathway for copper assets in Queensland often allows for a quicker transition from underground development to production decisions compared to greenfield projects in Western Australia. AIC Mines’ progress at Eloise and Jericho suggests potential for compressed development timelines, capitalizing on the existing operational framework. This approach aligns with a broader industry trend where companies increasingly rely on established declines and access drives to reach new mineralised zones, lowering upfront capital intensity and making smaller orebodies economically viable, especially during favourable commodity price cycles. For AIC Mines, establishing this direct underground access to the Jericho project is a key value-driver, positioning it as a strategic asset within the company’s portfolio.
The confirmation of underground connectivity between the Eloise and Jericho deposits marks a pivotal moment in the development of these Queensland copper assets. This achievement directly addresses the critical challenge of infrastructure development and capital expenditure in mining projects. By utilizing the existing Eloise decline to access the Jericho mineralisation, AIC Mines has intersected the Jericho copper mineralisation from the Eloise copper mine access drive in Queensland, confirming underground connectivity, the company is poised to significantly reduce the financial burden associated with establishing a new mine.
The strategic advantage of this underground link lies in immediate access to established infrastructure. The Eloise mine already possesses operational ventilation systems, power supply networks, and dewatering facilities. Integrating Jericho into this existing framework means AIC Mines can avoid the substantial costs and time associated with building these essential services from scratch. This synergy enables a more efficient and cost-effective development strategy, allowing the company to focus on extracting the Jericho mineralisation while benefiting from the operational backbone of Eloise.
The connectivity also facilitates integrated ground control strategies and coordinated service provision across the combined Eloise–Jericho system. This holistic approach to mine management can lead to enhanced safety, improved operational efficiency, and a more streamlined development process. The ability to stage the production ramp-up as development progresses allows AIC Mines to manage resources effectively and respond dynamically to market conditions.
The broader mining sector is increasingly adopting similar strategies to optimize project economics. The trend of utilizing existing declines and access drives to reach satellite deposits has become a prevalent development methodology, particularly in copper project development. This approach reduces upfront capital intensity, which can be a significant barrier to entry for new projects. By making smaller orebodies economically viable, this strategy broadens the scope of potential development targets, especially in mid-cycle commodity price environments.
For AIC Mines, the systematic underground access to the Jericho copper project represents a value-defining development step. This achievement positions the company within a select group of mining operations that can effectively leverage existing infrastructure to unlock new mineral wealth. The economic viability and strategic importance of the Jericho project are significantly enhanced by this connectivity, solidifying its role within AIC Mines’ broader portfolio.
Beyond AIC Mines’ specific progress, the mining industry continues to see advancements in project execution and operational efficiency. In British Columbia, Osisko Development’s subsidiary, Barkerville Gold Mines, has formalized the development pathway for its Cariboo underground gold project. This involves a definitive project and construction management services agreement with JDS Energy & Mining. Following a feasibility study in April 2025, which described the proposed underground mine as robust and scalable, JDS Energy & Mining is now tasked with overseeing detailed engineering, procurement, and construction management for critical components including the processing plant, underground infrastructure, and surface facilities. This transition from the study phase to the execution phase signifies a structured approach to engineering, procurement, and construction management (EPCM), encompassing geotechnical design, underground access development, and shaft or decline construction planning.
Technological innovation is also playing a transformative role in mining operations. TOMRA Mining is implementing advanced sensor-based ore sorting technology to convert mine waste rock and tailings into saleable aggregate for infrastructure applications. This approach extends the operational life of mines while reducing demands on primary crushing and haulage systems. By employing X-ray transmission (XRT) and other sensor technologies on conveyor belts, operations can differentiate between barren and mineralised material, upgrade the quality of run-of-mine feed, and decrease energy and water consumption in downstream comminution processes. The diversion of clean material fractions towards construction applications creates additional revenue streams while reducing the volume of waste dumps and associated long-term rehabilitation liabilities.
Equipment manufacturers are also contributing to operational advancements. Sandvik has expanded its product portfolio with the introduction of the RG550Be drill bit resharpening machine, which caters to both top hammer (TH) and down-the-hole (DTH) drilling applications. This mid-range addition complements existing high-end and handheld units, offering a tiered selection to meet diverse operational needs. The focus on improving safety and ergonomics in bit maintenance is evident in the transition from manual bench work to enclosed, purpose-built machines. For mine operators, this expanded range allows for better alignment between resharpening capacity and fleet size, potentially leading to increased bit longevity and improved drilling penetration rates.
These developments, from AIC Mines’ infrastructure integration to technological innovations and equipment advancements, collectively highlight the mining sector’s ongoing evolution. The industry is increasingly prioritizing integrated infrastructure utilization, embracing technological solutions, and optimizing operational efficiency to enhance project economics and sustainability.
Sources
- https://www.geomechanics.io/news/article/aic-intersects-jericho-mineralisation-design-and-scheduling-notes-for-mine-planners
