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This section details the recovery methods for the Conda Phosphate Plant (CPP) Wash Plant located at Soda Springs, Idaho. The plant processes phosphate ores delivered from mines including Rasmussen Valley Mine (RVM) and potential H1 and NDR deposits. The current flowsheet involves horizontal scrubbing, sizing, crushing, rod milling, classification, and dewatering to produce a beneficiated phosphate concentrate suitable for the Phosphate Acid Plant (PAP).

The Candelones Oxide Pre-Feasibility Study (PEA) outlines a heap leach processing method designed to treat 5,000 tonnes per day of mineralization from an open pit operation. The process involves crushing run-of-mine material using a mineral sizer to less than 150 mm, mixing with hydrated lime, and stacking on a heap leach pad. The design targets an average gold recovery of 75% over a 10-week leach cycle using a 0.05% sodium cyanide solution.

The White Pine North Project Preliminary Economic Assessment outlines a process plant design focused on producing copper concentrate. The facility is engineered for a nominal throughput of 15,000 tons per day, utilizing a flowsheet that includes grinding, classification, rougher flotation, and a three-stage cleaner flotation circuit employing both flotation cells and columns. Final concentrate processing involves thickening and filtration, with tailings managed via pumping to a common Tailings Disposal Facility.

The metallurgical process objective is to obtain gravity and flotation concentrates in a plant with a capacity of 500 tonnes per day (tpd). The plant will be composed of a single production line in two conventional processes namely gravity followed by flotation to obtain sulphide concentrates containing gold. The process path involves a dry section consisting of crushing (primary and secondary stages) and milling and a wet plant comprising gravity concentration, flotation and filtration of concentrates where gold is recovered.

This NI 43-101 Technical Report and Preliminary Economic Assessment outlines the proposed recovery methods for the Terakimti Oxide Deposit within the Harvest Project in Ethiopia. Based on test work conducted by BCR in 2013 and SGS in 2016, the oxide zone is amenable to conventional cyanide leaching. The study proposes heap leaching technology over agitated tank leaching due to satisfactory gold extraction kinetics, lower capital and operating costs, and reduced project complexity.

This NI 43-101 Technical Report outlines the Preliminary Economic Assessment for the Penco Rare Earth Element project, dated December 2021. The project focuses on the production of rare earth carbonates from ionic clay minerals. The processing plant is designed to handle a feed rate of 240 wet tonnes per hour, resulting in an annual production of 1,275 tonnes of dry rare earth carbonate product.

This technical report covers the Remedios Project located in the Municipality of Remedios, Antioquia, Colombia. Authored by James A. McCrea, P.Geo., the report was issued on July 9, 2014. It outlines the current status of the project’s mineral processing facilities, specifically focusing on the San Pablo Mill.