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The project currently employs more than 150 people directly and supports hundreds of contractor jobs. Once fully operational, the Taylor deposit is expected to support up to 900 direct jobs. As of October 2025, there were approximately 250 direct employees and a thousand contractors on site for construction.

The Hermosa project is located in the Patagonia Mountains in Santa Cruz County, approximately 80 kilometres southeast of Tucson. It consists of several deposits, with the first to be developed being the Taylor deposit, a zinc-lead-silver sulphide deposit. It also contains the Clark deposit, which holds battery-grade manganese, and the Peake and Flux prospects, which have potential for copper and further polymetallic mineralisation. Hermosa is the only advanced mine development project in the United States as of early 2024 that could produce the federally designated critical minerals of zinc and manganese.

First production from the Taylor deposit is targeted for the 2027 financial year.

The mine will be developed as a "next generation mine", utilising automation and technology. It will be partly run from an Integrated Remote Operating Center (iROC) located in Nogales, Santa Cruz County, which will monitor and control mining and processing. The design will leverage methods from South32's Cannington underground operation in Australia.

In February 2024, the South32 board approved a $2.16 billion investment to develop the Taylor zinc-lead-silver deposit. A final investment decision to develop the Taylor deposit was made in February 2024. The U.S. Forest Service issued a Draft Record of Decision and Final Environmental Impact Statement for the project, signalling intent for final authorisation. Construction at the mine site, which is on private land, was reported as 50 percent complete in March 2026. The project has been added to the U.S. government's FAST-41 permitting process to improve timeliness and transparency.

A Preliminary Economic Assessment from June 2023 projects an average annual production of 95,000 tonnes of copper and 49,000 ounces of gold over the first 14 years of operation.

The proposed processing method involves a copper sulphide process plant with a nominal throughput of 20 million tonnes per annum and a 3.3 million tonnes per annum oxide heap leach circuit with a SX/EW plant.

A Preliminary Economic Assessment was completed in June 2023. A Pre-Feasibility Study was scheduled for completion in 2024. Hot Chili filed a NI 43-101 Technical Report for the Preliminary Feasibility Study with an effective date of 27 March 2025. Glencore has an offtake agreement for 60% of the mine's production for the first 8 years.

The project is expected to employ approximately 1,400 people during construction and 600-700 workers during operations.

The Casino Project is an open pit mine under development in Yukon, Canada, targeting copper, gold, molybdenum, and silver. It is 100% owned by Western Copper and Gold Corporation, with Osisko Gold Royalties holding a royalty interest.

Average annual production is estimated at 164 million pounds of copper, 259 thousand ounces of gold, 1.392 million ounces of silver, and 15 million pounds of molybdenum.

The proposed processing method involves a concentrator with a nominal throughput of 120,000 tonnes per day to recover copper, gold, molybdenum, and silver, as well as a 25,000 tonnes per day oxide heap leach facility for gold, silver, and copper.

Western Copper and Gold submitted its Environmental and Socio-economic Effects (ESE) Statement to the Yukon Environmental and Socio-economic Assessment Board (YESAB) in October 2025. The project is currently undergoing a YESAB Panel Review, the highest level of environmental and socio-economic assessment in the Yukon.

The Back Forty Project is a development-stage asset in Menominee County, Michigan, now wholly owned and operated by Gold Resource Corporation (GRC). Osisko Gold Royalties holds an 18.5% gold stream and an 85% silver stream on the project. Development, previously stalled, resumed in December 2025 with GRC initiating a feasibility study and permitting process, supported by an SK-1300 compliant Technical Report Summary (effective 30 September 2023) outlining a revised plan to minimize environmental impact.

Over the life of the mine, total cumulative production is estimated to be 504,000 ounces of gold, 6,150,000 ounces of silver, 61.6 million pounds of copper, and 778 million pounds of zinc.

The processing plant is designed with a nominal capacity of 2,500 metric tonnes per day. The planned processing methods will produce gold and silver doré, as well as copper and zinc concentrates.

In January 2026, Gold Resource Corporation (GRC), the project's operator, announced a business combination with Goldgroup Mining, expected to close in Q2 2026, resulting in GRC becoming a wholly-owned subsidiary of Goldgroup. This merger is expected to create a more diversified mining company with an enhanced portfolio.

approximately 2,000 workers

As of February 2026, the San Gabriel project is 99% complete. The company is awaiting the final operating permit and water license to begin commercial operations in 2026. The project's total capital expenditure is estimated to be between US$720 million and US$750 million.

The first gold and silver were produced on 23 December 2025. Commercial production is expected in 2026. The mine is expected to produce between 100,000 and 120,000 ounces of gold annually. Production guidance for 2026 is estimated at between 48,000 and 55,000 ounces of gold.

The processing plant will have a capacity of 2,000 tonnes per day in 2026, increasing to 3,000 tonnes per day.

The processing plant will have a capacity of 2,000 tonnes per day in 2026, increasing to 3,000 tonnes per day. The project's total capital expenditure is estimated to be between US$720 million and US$750 million.

approximately 500 people

The mine produces over 40,000 tonnes of copper annually. In 2021, the mine produced 41,000 tonnes of payable copper and 459,000 ounces of payable silver. Metals Acquisition Limited reported copper production of 10,864 tonnes for the second quarter of 2024 and 10,159 tonnes for the third quarter of 2024. Production guidance for the CSA mine was estimated at 38,000-43,000 tonnes for 2024, 43,000-48,000 tonnes for 2025, and 48,000-53,000 tonnes for 2026.

Ore is processed on-site through grinding and flotation to produce a copper concentrate. The concentrate is then thickened, filtered, and dried before being transported by rail to the Port of Newcastle for export.

The mine is a mechanised operation. It utilises underground tunnels and two hoisting shafts. A new underground materials handling system includes ore bins, a crusher, and conveyors. The Temporary Rib Pillar mining method is supported by the WebGen™ wireless blasting system.

Harmony Gold is continuing the development of the Merrin Mine, a newly designated upper zone of the CSA Mine. There is also an inaugural zinc resource that was announced in February 2025. A ventilation project is underway and targeted for completion by mid-2026, which is expected to increase mine throughput capacity.

The Cascabel project is in the development stage, with a Pre-Feasibility Study completed in February 2024. Early works are scheduled for 2026, targeting first production from an open-pit operation in early 2028, followed by underground production later that year. An exploitation contract was signed in June 2024, granting development rights for 33 years. Initial development focuses on the TAM open-pit deposit to fund the larger Alpala underground block cave mine.

Over this period, the mine is expected to produce an average of 123,000 tonnes of copper, 277,000 ounces of gold, and 794,000 ounces of silver annually. The processing plant will initially have a capacity of 12 million tonnes per annum, with plans to expand to 24 million tonnes per annum in the sixth year of production.

The processing will involve a copper concentrator and a gold recovery circuit.

plans to expand to 24 million tonnes per annum in the sixth year of production

The mine has no on-site accommodation, and all staff live off-site, mainly in the city of Antofagasta.

In the fourth quarter of 2024, production was 13,600 tonnes of copper, consisting of 12,200 tonnes from sulphide operations and 1,400 tonnes of cathode from oxide operations. For the full year 2024, consolidated production was 184,460 tonnes of copper. In the third quarter of 2024, production was 10,000 tonnes, with 8,200 tonnes from sulphide operations and 1,700 tonnes of cathode from oxide operations. Second quarter 2024 production was 10,100 tonnes, comprising 8,200 tonnes from sulphide operations and 1,900 tonnes from oxide operations. First quarter 2024 production was 11,000 tonnes, with 9,200 tonnes from sulphide operations and 1,800 tonnes of cathodes. Annual copper production for 2025 was a record 61,919 tonnes, a 39% increase over 2024. Osisko Gold Royalties holds a silver stream on 100% of the payable silver produced until 19.3 million ounces have been delivered, and 40% thereafter. Silver production was 1,106,000 ounces in 2023 and 830,000 ounces in 2024.

The operation processes both sulphide and oxide ores. Sulphide ore with an insoluble copper grade greater than 0.22% is treated at a flotation plant (concentrator). Oxide ore with a soluble copper grade greater than 0.10% is processed via dump leaching. Since 2020, due to the depletion of oxide mineral reserves, processing in the oxide plant has substantially decreased, with only run-of-mine dump leaching of low-grade material being processed. The mine produces copper concentrates and copper cathodes.

The Mantos Blancos Concentrator Debottlenecking Development Project was completed in late 2021 to extend the mine's life and expand sulphide ore treatment capacity from 4.2 million tonnes per year to 7.3 million tonnes per year. The new 20,000 tonnes per day sulphide processing plant ramped up to sustained design capacity in 2024. A Phase II expansion is being evaluated to potentially increase the concentrator plant's throughput to at least 27,000 tonnes per day by using existing and underutilised equipment. A feasibility study for the Phase II expansion is expected around the end of 2025. The company has also implemented ShovelSense technology, which uses X-ray Fluorescence sensors on shovels to better differentiate ore grades and optimise recovery.