Mineral Processing Circuit

This NI 43-101 Technical Report outlines the Feasibility Study for the Volta Grande Project, conducted by Belo Sun Mining Corp. in May 2015. The study details a processing plant design based on metallurgical test work and industry best practices, targeting gold recovery from non-refractory ores containing free grains within quartz and diorites. The process route involves gravity concentration followed by cyanidation of gravity tailings, utilizing a hybrid carbon-in-leach/carbon-in-pulp (CIL/CIP) configuration to balance capital costs and adsorption efficiency.

This NI 43-101 Technical Report presents the Pre-feasibility Study for the Kamistiatusset (Kami) Iron Ore Property in Labrador. Champion Iron Limited has reviewed the scope of the project to design a process allowing the production of a low silica grade concentrate suitable for Direct Reduction usage. The flowsheet is based on metallurgical testwork and engineering experience, incorporating major changes from the 2018 Feasibility Study to improve iron recovery and concentrate grade.

The Bethania Silver Project, formerly known as Mina Santa Elena, is a polymetallic deposit located in central Peru. Historical toll processing between 2013 and 2016 confirmed the high value silver-rich content of the mineral source, with silver reporting primarily to Pb-concentrates and remaining silver to Zn-concentrates. The principal minerals are galena and sphalerite, with silver potentially associated with sulfosalts like proustite and pyrargyrite. While past production records indicate saleable Pb and Zn concentrate grades, no metallurgical testwork has been completed to confirm the production of saleable Cu concentrates.

This Preliminary Economic Assessment (PEA) outlines the proposed hydrometallurgical processing methods for the Plymouth deposit at the Woodstock Manganese Property. The report indicates that hydrometallurgical technologies are more amendable to processing the fine-grained manganese carbonate deposits found at the site compared to high-temperature pyrometallurgical methods. The selected process focuses on producing highly purified manganese sulphate solution for the primary production of Electrolytic Manganese Metal (EMM), with opportunities for co-production of other manganese chemicals.

This Preliminary Economic Assessment (PEA) outlines the processing plant design for the Eagle Mountain Gold Project in Guyana, operated by Goldsource Mines Inc. The project is designed with a 15-year mine life, split into two phases: Phase 1 (4.5 years) focusing on saprolite mill feed, and Phase 2 (10.5 years) incorporating fresh mill feed. The plant is designed for a throughput of 5,000 tonnes per day (226 t/h).

This technical report details the processing operations for the Golden Chest Project located in Idaho, USA. Mineralized material is transported to the New Jersey Mill in Kellogg, Idaho, where it undergoes crushing, grinding, gravity concentration, and flotation to produce marketable concentrates. The mill processes both unoxidized sulphide material from underground operations and partially oxidized material from open pit mining.

The Dugbe Gold Project Feasibility Study describes a 5.0 Mtpa conventional milling and gravity gold recovery circuit with carbon-in-leach (CIL)

Augusta Resource's August 2012 technical report separates molybdenite in its own flotation circuit, ships copper concentrate by highway truck and