Mineral Processing Circuit

This National Instrument 43-101 Technical Report presents the Pre-feasibility Study for the Doropo Gold Project in West Africa. The proposed process plant design is based on a robust metallurgical flowsheet designed for optimum recovery with minimum operating costs. The flowsheet utilizes unit operations that are well proven in industry, with equipment selection criteria focusing on suitability for duty, projected mine life, reliability, and ease of maintenance. The plant layout is designed to provide ease of access for operating and maintenance requirements while maintaining a compact footprint to minimize construction costs.

This Preliminary Economic Assessment outlines the processing plan for the El Cubo project, managed by VanGold. The report details the utilization of the existing El Cubo Mill, which is designed to operate at a throughput of 750 tonnes per day. The plant will process ore sourced from a combination of the El Cubo underground mine and the El Pinguico above-ground and underground stockpiles. The objective is to produce approximately 12 tonnes of gold-silver concentrate daily.

This technical report outlines the process design for the Falchani Lithium Project, which consists of an open pit mine and an associated processing facility. The design is based on achieving a peak milled tonnage of 6 Mt/y over three phases, with a total mine life of 43 years. The Base Case process plant includes mineralized material handling, crushing, grinding, acid leaching, neutralization, softening, evaporation, ion exchange, and lithium carbonate precipitation. The Alternate Case adds specific steps for Potassium Sulfate (SOP) and Mixed Sulfate recovery.

This NI 43-101 Technical Report and Preliminary Economic Assessment outlines the proposed process design for the Colomac Gold Project. The flowsheet was selected based on preliminary metallurgical testwork and economic modelling, utilizing standard technologies for gold processing. The design includes conventional crushing, grinding, leaching, carbon adsorption, desorption, electrowinning, and refining circuits, along with cyanide destruction and tailings dewatering.

This technical report details the processing plant operations and expansion plans for the Tabakoto Mine operated by Avion Gold Corporation. The existing facility treats approximately 750,000 tonnes per year of ore using a circuit comprising jaw and cone crushers, a ball mill, gravity concentration, and carbon-in-leach (CIL) tanks. The plant currently produces gold bullion with historical recoveries averaging around 96.5% for specific ore types.

The Songjiagou Gold Project, operated by Majestic Gold Corp., is an active mining operation located in the Muping District of China. The project features a combined processing capacity of 7,400 tpd across three distinct plants, with two plants commissioned in 2006 and a third added in May 2011. The mine utilizes both underground and open pit mining methods, with ore from the underground mine processed in the 200 tpd plant and open pit inventory handled by the larger 1,200 tpd and 6,000 tpd facilities.

The Briggs mine has processed over 30 million tons of ore to date, resulting in the production of in excess of 640,000 ounces of gold. The operation utilizes a conventional crush and heap leach process for gold recovery. The facility includes a refinery for the production of gold/silver doré and maintains an assay/metallurgical lab for quality control.

The metallurgical process for the East Kemptville Project focuses on the recovery of a tin concentrate with a target grade of 55% Sn. Based on testwork described in Section 13.0, the flowsheet was developed to be simple and cost-effective, prioritizing tin recovery over maximizing other metal recoveries. A small portion of copper, zinc, iron, and indium will be collected into a sulphide concentrate and disposed of in the tailings facility unless a buyer is found.