AIC Mines has successfully intersected the Jericho copper mineralisation through an access drive connected to the Eloise copper mine in Queensland, confirming underground connectivity between the two deposits. This operational milestone was achieved via the Eloise decline, eliminating the need for a separate shaft at Jericho and enabling accelerated development by leveraging Eloise’s existing ventilation, power, and dewatering systems. The company’s announcement was reported by market press, citing the company’s release Mining development from the Eloise decline has intersected the Jericho mineralisation.

The underground link between Eloise and Jericho offers substantial operational advantages for geotechnical specialists and mine planning teams. The connection enables coordinated ground control strategies, consolidation of support services, and a phased approach to ramping up production across the integrated Eloise–Jericho system. This integrated development pathway is anticipated to be more efficient than managing two separate mining operations.

Queensland copper projects, such as Jericho, often progress from underground development to production decisions more rapidly than greenfield exploration sites in Western Australia. This accelerated timeline suggests that AIC Mines is positioned to capitalise on the existing Eloise infrastructure to significantly reduce the time between current development activities and eventual production commencement, contingent on formal confirmation of mineralisation continuity through ongoing exploration and assessment.

Using existing decline systems or established access drives to reach satellite deposits is a common practice across copper-focused projects in the mining industry. This approach typically reduces initial capital expenditure requirements and can make smaller ore bodies, like Jericho, economically viable even at moderate copper price levels. This economic viability is particularly crucial in mid-cycle pricing scenarios where operational efficiency is a key determinant of project feasibility.

The systematic underground access achievement at the Jericho copper project in Queensland is likely to function as a critical value-defining development for AIC Mines. The successful intersection and integration of Jericho into the Eloise operational framework could substantially influence the company’s overall valuation and strategic positioning within the copper mining sector.

Related Developments in Mining Infrastructure and Services

Osisko Development’s subsidiary, Barkerville Gold Mines, has entered into a definitive agreement with JDS Energy & Mining for project and construction management services related to the Cariboo underground gold project in British Columbia. A feasibility study completed in April 2025 characterises the proposed underground mine as possessing robust and scalable operational characteristics. Under this agreement, JDS will oversee detailed engineering, procurement, and construction management for the processing facility, underground infrastructure, and surface installations. This transition from the study phase to the execution phase signifies that geotechnical design, underground access development, and shaft or decline construction planning are now proceeding under a formal Engineering, Procurement, and Construction Management (EPCM) framework.

TOMRA Mining is implementing advanced sensor-based ore sorting technology designed to convert mine waste rock and tailings into commercially viable aggregate for infrastructure applications. This extends operational mine life while reducing demands on primary crushing and material haulage systems. By employing X-ray transmission (XRT) and comparable sensor technologies on conveyor systems, operations can enhance the quality of run-of-mine feed, decrease energy and water consumption in downstream comminution processes, and redirect clean material fractions towards the construction industry. This approach creates an additional revenue stream while lowering waste dump volumes and associated long-term rehabilitation obligations.

Sandvik has expanded its drilling equipment portfolio with the introduction of the RG550Be drill bit resharpening machine. This mid-range offering extends the company’s coverage for both top hammer (TH) and down-the-hole (DTH) drilling applications and complements a tiered product line that includes high-end, mid-range, and handheld units. The expansion prioritises improved safety and ergonomics in bit maintenance operations, shifting grinding work from manual bench processes to enclosed, purpose-built machinery. For mining operators, the expanded range allows for more precise alignment between resharpening capacity and fleet requirements, potentially improving bit longevity and drilling performance metrics.

Sources

  • https://www.proactiveinvestors.com.au/companies/news/1042622/aic-mines-intersects-jericho-mineralisation-1042622.html