Mineral Processing Circuit

The 2024 Technical Report for the Soledad Mountain Project outlines the operational details of the recovery methods employed at the facility located in Kern County, California. The project utilizes a heap leach process for gold and silver recovery, with a crushing plant designed to handle an average throughput of 375,000 dry tons of ore per month. The crushing circuit is a three-stage system comprising a primary jaw crusher, a secondary cone crusher, and a tertiary High Pressure Grinding Roll (HPGR).

This section of the Technical Report details the recovery methods and plant design for the Galaxy Gold Mine. The processing plant is currently on care and maintenance, with some equipment dismantled or corroded, requiring upgrades before commissioning. The proposed ramp-up plan involves treating both Run-of-Mine (RoM) material and historic tailings from the Hostel tailings dumps. The target throughput for this phase is 15 kilotonnes per month (ktpm), with the mill polishing tailings and crushing RoM to 80% passing 75 µm prior to flotation.

This Pre-Feasibility Study (PEA) Technical Report outlines the mineral processing design for the Duyker Eiland Project in the Western Cape, South Africa. The processing design is based on experience from similar operations and exploratory test work conducted at the University of Cape Town Chemical Engineering Department. The proposed circuit aims to achieve a phosphate concentrate grade of 33% P2O5 or better with an estimated overall recovery of 85%.

This NI 43-101 Technical Report outlines the Feasibility Study for the LabMag Taconite Project, developed by New Millennium Iron Corp. The project is located in the Labrador Trough, south of the Quebec border, and focuses on the extraction and processing of magnetite-bearing taconite ore. The design is based on extensive laboratory and pilot plant test work conducted between 2005 and 2013, ensuring the viability of the proposed processing circuit. The project aims to produce high-grade iron ore pellets and concentrate for the global steel market, with a strategic off-take agreement anticipated with Tata Steel Europe.

The 2025 Feasibility Study for the Matawinie Graphite Mine outlines the design of a mineral processing facility capable of producing 105,882 dry tonnes of graphite concentrate annually. The concentrator is designed to upgrade ore containing 4.23% C(g) to a final concentrate grade of 97.5% C(t) with an average recovery of 93%. The facility operates at a nominal throughput of 7,804 dry tonnes per day, running 24 hours per day, 7 days a week, with an operating availability of 90%.