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This NI 43-101 Technical Report section details the recovery methods for the Fox Complex Expansion project by McEwen Mining Inc. Mineralized material from multiple deposits including Froome, Grey Fox, Stock West, and Fuller will be processed through the Fox Mill at the Stock mine site. The process flow involves blending feed based on production schedules and hardness to achieve target throughputs, with modifications to increase tonnage and process harder materials.

This technical report outlines the recovery methods for the Cobre Panamá Project, a large-scale open-pit sulphide mine located in Panama. The processing plant is designed to treat ore from multiple pits, including Botija, Colina, and Valle Grande. The initial throughput in 2018 is planned at 190,000 t/day, increasing to a nominal 246,575 t/day by 2023, with a design capacity of up to 274,000 t/day.

This technical report section details the recovery methods employed at the Summit Mine operated by Lordsburg Mining between March 2010 and October 2013. The processing plant was designed to produce two separate products for sale to local and overseas smelters: a precious-metal-bearing silica flux and a gold-silver flotation concentrate. The facility utilized a combination of crushing, grinding, and flotation circuits to upgrade the ore, with operations historically shipping significant quantities of both flux and concentrate to smelters in Arizona.

This section of the Preliminary Economic Assessment outlines the proposed recovery methods for the Waterberg Project. A data search was conducted by WorleyParsons RSA to identify a suitable processing facility layout, selecting the PPRUST Operator plant as a reference model. The proposed concentrator plant is designed for a throughput of 600,000 tons per month.

This report details the recovery methods for the CMC concentrator, a base metal polymetallic sulfide concentrator producing Pb, Cu, and Zn concentrates. The plant also includes a differential flotation circuit for AsPy from Py to recover refractory Au and Ag via BIOX and CIL technology. Operations have been intermittent since the plant’s 1999 commissioning and are currently under care and maintenance status.

The Gramalote Project is a gold mining development located in the Palestina Valley, Colombia, currently in the development phase as of the 2025 Feasibility Study. The project is designed to operate an open-pit mine with a planned annual throughput of 6 million tonnes of ore. The processing plant utilizes a robust metallurgical flowsheet based on well-proven unit operations to ensure optimum recovery with minimum operating costs. The project has received an Environmental License, with further modifications approved in 2019 and 2024, and is proceeding with necessary construction and operational permits.

This technical report details the recovery methods and processing plant evolution for the Salobo Project, operated by Vale in Brazil. The processing flowsheet has evolved through multiple study phases from 1986 to 2019, incorporating metallurgical testwork and resource estimates. The project consists of three phases: Salobo I (commissioned 2012, 12 Mtpa), Salobo II (commissioned 2014, 12 Mtpa), and the planned Salobo III expansion to reach a total capacity of 36 Mtpa. The plant is designed to process copper sulphide ore, producing approximately 200 kt of copper-in-concentrate annually in its current configuration.

The Lanigan mine has been in operation since 1968, producing high-grade finished potash products for agriculture and industry. The facility utilizes both flotation and crystallization methods to concentrate potash ore into near-pure KCl products. Production data from 2012 to 2014 shows annual output ranging from 1.653 to 2.241 million tonnes with an average grade of approximately 60.87% K2O.