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In 2014, 99% of the employees were Peruvian. The processing and mine facilities operate 24 hours a day, seven days a week, with four crews rotating on 12-hour shifts.

Laguna Norte is a gold and silver open-pit, heap leach mine in the La Libertad Region of north-central Peru. It commenced production in March 2005. Barrick Gold placed the mine on care and maintenance in 2019 and sold its 100% interest in June 2021.

Production overview - 2018: gold 245000 oz.

crushing and extraction of precious metals through heap leaching, followed by recovery using a Merrill-Crowe process and carbon-in-column (CIC) plants.

34 employees

The Donlin Gold project is a large, undeveloped, open-pit gold mine located in southwestern Alaska, United States. It is situated approximately 10 miles north of the village of Crooked Creek, on the Kuskokwim River, and about 280 miles northwest of Anchorage.

Production overview - 2022: gold 39 Moz; 2016: gold 1055.032 t.

gyratory crusher, semi-autogenous grinding (SAG) and ball mills, flotation, pressure oxidation, carbon-in-leach circuit

large hydraulic shovels, front-end loaders, ultra-class haul trucks, rotary blast hole drills, dozers, graders, water trucks

The Rock Creek project is at an exploration stage and is not currently in development or operation. Hecla Mining Company is not presently seeking permits for the construction of the Rock Creek mine. Instead, the company's focus is on the Libby Exploration Project (formerly the Montanore project), which is intended to gather data that will inform potential future activities at Rock Creek. The original plans of operation for Rock Creek, inherited from previous owners, have been withdrawn. The project has faced legal and regulatory challenges, and in 2021 a court decision invalidated the U.S. Forest Service's approval for the mine's evaluation adit, meaning the project currently has no federal authorisation to proceed.

The project is a significant land package of approximately 1,700 square kilometres. The Rackla project is characterised by two main gold deposits: Osiris Deposit (a Carlin-type gold deposit) and Tiger Deposit (a carbonate replacement-style gold deposit).

Hecla Mining Company acquired the Rackla project through the acquisition of ATAC Resources Ltd., a transaction that was completed on 7 July 2023.

The Hollister mine is located in Elko County, Nevada. Hecla Mining Company acquired the mine in July 2018. Production at the mine was suspended in the third quarter of 2019, and it is currently under care and maintenance.

When operational, the primary mining method at Hollister was overhand drift and fill, a technique suited for the mine's narrow veins. Other methods used included cut and fill, and longhole stoping. Ore from Hollister was processed off-site. The ore was hauled to the Midas mill for processing. The processing method for Hollister ore at the Midas mill involved grinding, cyanidation, and carbon-in-leach (CIL).

Future development at Hollister is focused on the Hatter Graben vein system, which is located east of the existing underground workings. State and federal approvals will be necessary for waste rock and underground water management for any development of the Hatter Graben or other expansions. Hecla Mining has indicated that its Nevada portfolio, which includes Hollister, is a high-impact development project and a transformative opportunity for the company.

431 (2024)

Production overview - 2025: silver 5260686 oz, lead 34284 t, zinc 14924 t; 2024: silver 4890949 oz, lead 31265 t, zinc 13513 t.

The Lucky Friday mill is a conventional silver and zinc flotation concentrator with a capacity of 1,000 tons of ore per day. The process involves crushing, grinding, and flotation to produce silver-lead and zinc concentrates. These concentrates are shipped by truck to a smelter in Trail, British Columbia, Canada. In 2025, metallurgical recoveries were 94.5% for silver, 94.3% for lead, and 85.1% for zinc.

The mine uses jumbo drills and mechanised mining with truck haulage to the Silver Shaft. Rubber-tired equipment is used to access the veins through ramps. The Underhand Closed Bench (UCB) mining method is now used to produce the majority of the ore.

The #4 Shaft project is complete and provides access to deeper, higher-grade ore in the Gold Hunter/Lucky Friday Expansion Area. A surface cooling project is underway and expected to be completed by mid-2026 to deliver chilled air underground, enabling operations to advance deeper into hotter geological zones. Hecla plans to invest up to $73 million in the coming years, focusing on underground development, a new tailings facility, and the cooling project. In 2024, exploration drilling was planned for an area east of the 30 Vein.

Hecla is the largest private-sector employer in Juneau.

Production overview - 2025: silver 8700000 oz, gold 59349 oz, lead 18200 t, zinc 51300 t; 2023: silver 9700000 oz, gold 60896 oz, zinc 46719.55 t, lead 17780.82 t.

In 2025, the mill processed an average of 2,388 tonnes per day. The actual metallurgical recoveries for 2025 were 79.3% for silver, 74% for gold, 82.6% for lead, and 88.8% for zinc.

Major facilities include the underground mine, an ore concentrating mill, a dry stacked tailings facility, a ship-loading facility, camp facilities, and a ferry dock.

In January 2026, the U.S. Forest Service approved a five-year plan of operations for the Greens Creek Surface Exploration Project, which completed the FAST-41 federal permitting process. Exploration activities are expected to begin in the spring of 2026. As part of a company-wide strategy, Hecla is nearly doubling its investment in exploration and pre-development to a record $55 million in 2026, which includes a focus on Greens Creek. Capital investment at the mine in 2026 will go towards development and the expansion of its tailings facility, which is expected to increase capacity to 2045. Recent definition drilling in the East Zone intersected high-grade mineralisation, including one drillhole with 247.3 oz/ton silver, 1.94 oz/ton gold, 22.7% zinc and 12.1% lead over 7.7 feet. The company is also using AI-driven geological modelling to identify new veins at the mine.

During the initial two-year construction period, the project is expected to employ a contractor workforce of about 150 people. For the operational period, the workforce will be approximately 415 full-time employees, which includes 45 new hires and 370 existing Cortez Mine employees.

The Robertson Mine Project is situated in Lander County, Nevada, United States, as part of the Cortez Complex. The project received its Record of Decision from the Bureau of Land Management in November 2024, and ground clearing activities have commenced. First production is anticipated in 2027.

Ore processing will be done via a heap leach facility, which includes a lined pad, process solution ponds, and a carbon-in-column plant.

Komatsu 930E-5 haul trucks

approximately 900 people

The Turquoise Ridge mine is part of the Turquoise Ridge Complex, a joint venture between Barrick Gold Corporation (61.5%) and Newmont Corporation (38.5%) known as Nevada Gold Mines LLC. The complex combines Barrick's Turquoise Ridge Mine and Newmont's Twin Creeks Complex, aiming to improve efficiency and extend operational life. Recent reports in late 2025 and early 2026 highlighted strong performance and production increases. The company is also focused on exploration to expand the resource base.

Production overview - 2023: gold 514386 oz, silver 163388 oz.

Ore is processed through an autoclave and a carbon-in-leach (CIL) circuit for refractory ores, as well as an oxide mill and heap leach pads for non-refractory ore. Facilities include the Sage autoclave and the Juniper oxide mill.

Open pit mining fleet includes Hitachi hydraulic excavators (models 3600 and 5500), a Caterpillar 994 front-end loader, and a haul truck fleet consisting of Caterpillar 793 and 785 models. Blast hole drill fleet includes an Atlas Copco DML and two Atlas Copco PV271s. 63 new Komatsu trucks were added to the open pit fleets in late 2024.

Construction of a third shaft to increase production capacity, improve ventilation, allow for an additional 200,000 ounces of gold annually, and support operations for another 15 years.

The project is expected to employ 570 people once operational, with 500 jobs created during construction.

The Goldrush Project officially opened on 25 April 2024 and is on track to produce 130,000 ounces of gold in 2024. Production is expected to ramp up to approximately 400,000 ounces per annum by 2028. Commercial production is scheduled to be reached by 2026.

Production overview - 2021: gold 4800000 oz.

Refractory ores are shipped to the Carlin Complex for processing.

The total capital expenditure for the project is anticipated to be approximately $1 billion. As of December 2023, more than $370 million had been invested in the project.

The Cortez Hills Project is part of the larger Cortez Complex, which consists of multiple open-pit and underground mines. It is located in Lander and Eureka Counties, approximately 100 kilometres southwest of Elko. Gold mineralisation is hosted within the Silurian Roberts Mountain Formation and the Devonian Wenban Limestone, described as Carlin-type sedimentary rock-hosted deposits.

Production overview - 2023: gold 892000 oz.

Processing methods at the Cortez Complex include an oxide mill, heap leach pads, and a carbon-in-leach circuit. Refractory ore is transported to Nevada Gold Mines' Carlin Complex for processing.

around 2,500 company and contract workers as of 2024

The Carlin complex in Nevada, United States, is a significant gold-producing asset operated by Nevada Gold Mines, a joint venture between Barrick Gold Corporation (61.5% ownership) and Newmont Corporation (38.5% ownership). It consists of multiple open pit and underground operations.

Production overview - 2024: gold 786129 oz, silver 33497 oz; 2023: gold 1157687 oz, silver 138921 oz.

Processing facilities at the Carlin complex include autoclaves, roasters, and heap leach pads using cyanide. A significant enhancement was made at the Gold Quarry roaster, which increased its throughput by approximately 20%.

The operation utilises a fleet that includes 20 Komatsu 930E-5 haul trucks. There is a focus in 2026 and 2027 on an aged mobile fleet with lower availabilities.

The Greater Leeville project is a key component of the site's strategy, with the potential to extend the Carlin complex's operational life beyond 2045.

878 as of the end of 2021. In 2020, over 600 new workers were employed.

Production overview - 2025: gold 153000 oz; 2022: gold 547000 oz.

The processing plant includes crushing, grinding, gravity, flotation, carbon-in-leach, thickening, cyanide destruction, filtration and paste backfill. The plant has a capacity to process an average of approximately 3,300 tonnes of ore per day. The mine produces both gold doré and gold concentrate.

The mobile equipment fleet includes drill jumbos, scoops, and dump trucks. Specific models in use include Sandvik TH545i, LH410, LH514, LH307, DL210, DL321, DD321, and DD210. Swick Gen II Mobile Drill Rigs are also used for grade control and development.

Development of the Upper West decline is ongoing. Capital projects for Upper West and Reef 2 are a priority. The Upper West boxcut was completed in mid-December 2024, and the decline portal has been started, with the first ore expected by the end of 2025.

179 people (Perenti/Barminco)

IGO Limited's Cosmos Project in Western Australia transitioned to care and maintenance in June 2024 due to reduced expected mine life, production delays, increased costs, and deteriorating commodity prices. The company intends to restart the project if market conditions improve, while assessing exploration programs. The project focuses on the Odysseus underground mine.

Nearly 295,000 tonnes of Odysseus ore were processed until 22 May 2024. Processing plant capacity upgraded from 900 ktpa to 1.1 Mtpa.

wet commissioning of the processing plant, processing of existing ore on the run-of-mine pad, upgraded circuit includes new primary, secondary, and tertiary crushing and screening, a new primary mill, refurbished secondary and regrind mills, new and refurbished flotation cells, and new thickeners for concentrate and tailings

paste plant, processing plant, shaft, primary, secondary, and tertiary crushing and screening, primary mill, secondary and regrind mills, flotation cells, thickeners for concentrate and tailings, all-diesel underground fleet, battery electric vehicles (BEVs), 65-tonne BEV trucks, 63-tonne diesel trucks

processing plant capacity upgraded from 900 ktpa to 1.1 Mtpa; assessing select exploration programs to potentially increase the mineral resource, particularly the AM5 and AM6 orebodies

over 600 people

The Tongon Gold Mine is located in Côte d'Ivoire, approximately 628 kilometres north of the port city of Abidjan and 55 kilometres south of the Malian border, within the Nielle mining permit in the Savanes district's Tchologo region. The mine is an open pit operation, with mining occurring in two main zones, the Southern Zone (SZ) and the Northern Zone (NZ). Originally owned and operated by Randgold Resources, Barrick Gold Corporation assumed control following their merger in 2019. The primary commodity is gold, with a small, negligible amount of silver produced as a by-product.

Production overview - 2024: gold 148000 oz; 2022: gold 200000 oz.

flotation circuit and a carbon-in-leach (CIL) system

Vibrocone crushers (replaced with conventional cone crushers from Sandvik), fourth-stage crushing circuit, six new CAT generators, naked crusher CH660, fourth flotation rougher cell, oxygen plant, 8MW motor on one of the mills, fleet of 100-tonne dumper trucks, four 300-tonne hydraulic excavators

successful exploration campaigns have repeatedly extended mine life; equipment upgrades to improve throughput and recovery; fourth-stage crushing circuit commissioned; six new CAT generators installed; purchase and installation of a naked crusher CH660; installation of a fourth flotation rougher cell; upgrade to the oxygen plant; 8MW motor installed on one of the mills

In early 2026, Hemlo Mining Corp. is transitioning to a hybrid owner-operator model. Manroc Developments Inc. will continue with Alimak mining and provide support during the transition. This strategy aims to enhance cost control, workforce stability and support employment from surrounding communities.

The B-Zone Footwall contributes approximately 20% of the current gold production. Since 1985, the Hemlo mine has produced over 25 million ounces of gold.

Production overview - 2025: gold 143458 oz.

The processing plant has a capacity of up to 10,000 tonnes per day. The process involves grinding, cyanide leaching, carbon-in-pulp (CIP), carbon stripping and reactivation, electrowinning, and refining. The Williams Mill has a capacity of about 3.6 million tonnes per annum, and the shaft has a hoisting capacity of approximately 2.6 million tonnes per annum. In early 2026, the processing mill was reported to be running at 40% of its capacity, around 3,800 tonnes per day, with an opportunity to increase this to 4,800 tonnes per day without upgrades. The hoisting capacity is currently operating at about 60% capacity. Metallurgical recovery for gold averaged 94% in 2025.

A new Sandvik TH430 30-tonne haul truck was delivered to the mine in early 2026.

Hemlo Mining Corp. initiated a focused action plan to ramp up production through 2026–2028. This includes investments in exploration, mine planning, the owner-operator transition, underground development, and fleet expansion. A 130,000-metre exploration drilling program was launched for 2026 to extend the mine life and de-risk the short-term mine plan. This program will support an updated technical report expected in 2027. The drilling will focus on converting inferred resources, high-definition drilling, and testing new mineralised zones. There are plans to potentially recommence open-pit mining at the Williams pit. An open-pit expansion is expected to start in 2027 and reach full capacity in 2028. A 2025 exploration drilling program at the E-Zone, a newly defined mineralised zone, demonstrated the potential for additional mineralised zones near existing infrastructure. In 2026, the company plans to drive a 300-metre exploration drift to access the E-Zone for further drilling.

8,000 employees

Production overview - 2025: gold 36200 oz; 2024: gold 723000 oz.

Ore from both the Loulo and Gounkoto operations is processed at the Loulo plant, which utilises a conventional crushing, milling, and carbon-in-leach (CIL) circuit. There are plans to increase the plant's annual capacity from 5 million tonnes to 6.2 million tonnes by 2029.

Development of a third underground mine at Gounkoto was commissioned, with ore production from stoping scheduled to begin in the second quarter of 2023. The Baboto pit is being reopened, with potential for a future underground expansion. Mining at the Yalea and Gara underground operations is expected to continue until 2037.

7,000 (2024)

Nevada Gold Mines is a joint venture between Barrick Gold Corporation (operator) and Newmont Corporation, formed in 2019. It operates multiple open pit and underground mines in Nevada, United States, producing gold. The complex is undergoing significant reinvestment and equipment upgrades, including the deployment of an autonomous haulage system and 5G communications infrastructure.

Production overview - 2023: gold 3 Moz.

The complex includes multiple processing facilities, including autoclaves, roasters, oxide mills, a flotation plant, and heap leach facilities. Nevada Gold Mines operates several pressure oxidation facilities (autoclaves) to process refractory ore. The Goldstrike autoclave has been converted to a carbon-in-leach process. The Turquoise Ridge Sage autoclave underwent significant equipment upgrades to improve reliability and performance. Heap leaching is used for low-grade gold ore.

A fleet of 300 and 230-tonne haul trucks is being automated with Komatsu's FrontRunner Autonomous Haulage System. An agreement was signed in 2023 for the delivery of 62 new Komatsu 930E-5 haul trucks through 2025, with 47 delivered as of December 2024. The complex also utilises hydraulic shovels and electric rope shovels.

Nevada Gold Mines is undergoing significant reinvestment to replace and upgrade equipment and infrastructure. Key developments include the Goldrush project, with permitting completed in 2023, and the deployment of an autonomous haulage system with customised 5G communications infrastructure.

The Republic site in Washington is an exploration project for Hecla Mining Company, considered an emerging opportunity. Hecla has allocated 1% of its 2025 exploration budget to the project, which consists of 3,583 acres encompassing historically productive trends. Modern exploration techniques, including 3D modelling, are being used, and recent exploration has yielded multiple high-grade gold intercepts, indicating potential for both underground and bulk-tonnage discoveries.

The Monte Cristo project is part of Hecla Mining Company's Nevada exploration portfolio. It is situated in the Walker Lane Trend and is characterised by a six-mile mineralised trend. Hecla is undertaking detailed mapping, geochemistry, and the creation of cross-sections to advance targets to a drill-ready status.

approximately 1,700

Production overview - 2025: lithium 1350000 t; 2024: lithium 1480000 t.

The Greenbushes operation has four processing plants: Chemical Grade Plant 1 (CGP1), Chemical Grade Plant 2 (CGP2), a Tailings Retreatment Plant, and a Technical Grade Plant. A third Chemical Grade Plant (CGP3) commenced commissioning and processed its first ore on 18 December 2025. CGP3 has a design capacity of approximately 500,000 tonnes per annum of spodumene concentrate. The addition of CGP3 increases the total production capacity of the site to approximately 2.1 million tonnes per annum of spodumene concentrate. Total ore processed is expected to increase to approximately 7 million tonnes per annum by 2028.

The mine is undergoing a significant expansion to increase the production of spodumene ore and lithium mineral concentrate. This includes the construction of a third Chemical Grade Plant (CGP3), which is expected to have its first ore by the end of CY2025. There are also proposals for an additional waste rock landform, expansion of the existing Floyds waste rock landform, and expanded water storage capacity. The expansion proposal would increase the development envelope by 28 per cent to 2,826 hectares. There is also consideration for a potential fourth Chemical Grade Plant (CGP4).