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The mine employs approximately 220 Tahltans. An older source stated nearly 500 people are employed in total.

For the 2024 calendar year, total production was 85,320,618 pounds of copper and 59,811 ounces of gold. Production for the 2023 calendar year was 57,051,467 pounds of copper and 46,046 ounces of gold. Newmont's guidance for 2025 is 88 million pounds of copper and 86,000 ounces of gold.

The processing plant uses a primary gyratory crusher, a semi-autogenous (SAG) mill, ball mill, and pebble crushing (SABC) comminution circuit. This is followed by a sequential flotation recovery circuit to produce a saleable gold-copper concentrate. The plant will be upgraded to support the underground operation, including a parallel single-stage SAG grinding circuit and additional flotation capacity.

The mining fleet includes conventional truck and shovel methods. Specific equipment includes Sandvik Leopard™ DI650i and Sandvik DR412i blasthole drills, P&H 2800 electric cable shovels, and Caterpillar 793 and 785D haul trucks. The future underground block cave operation will require a new fleet of equipment, including jumbos, cablebolters, shotcrete machines, and agitator trucks.

A major expansion to an underground block cave operation is being studied and is anticipated to extend the mine's life by more than a decade. A feasibility study for the block cave expansion is expected to be completed in the second half of 2026.

MRE report for Rogue Project.

Porphyry Cu–Mo–Au–Ag deposit; proposed large open-pit operation with a 21-year mine life.

Cu–Mo concentrate via flotation (production quantities not captured in this dataset).

Primary crushing; SAG + ball milling; flotation to produce a bulk Cu–Mo concentrate; concentrate thickening/filtration (with additional precious metal recovery considerations).

Rope shovels: 4 (53 m³); Haul trucks: 38 (360 t); Drills: 3 (electric); Dozers: 3; Graders: 4; Water trucks: 3; Fuel/lube trucks: 2; Support/service vehicles (various)

410 direct jobs (2023); approx. 360 staff (2020). On-site camp capacity: 251 people.

The Seabee Gold Operation is a remote, fly-in, fly-out underground gold mine in Saskatchewan, Canada, 125 km northeast of La Ronge. It includes the Santoy underground mine (commercial production since 2014) and the Seabee mill facility. The original Seabee mine operated from 1991 to 2018. Ore from Santoy is hauled 14 km to the Seabee mill.

2023: 90,777 oz gold; 2022: 136,125 oz gold; 2021: 118,888 oz gold; 2020: 81,686 oz gold; 2019: 112,137 oz gold; 2018: 95,602 oz gold. 2024 forecast: 75,000-85,000 oz gold. Estimated mineral reserve (end 2023): 343,000 oz gold.

Seabee mill uses gravity concentration and cyanide leaching with a carbon-in-pulp circuit to produce gold doré bars. Gravity gold recovery circuit upgraded with a gravity oversize protection screen, two Knelson concentrators, one Acacia intensive leach reactor, and an electrowinning cell.

Underground mine equipment fleet, including five 6-cubic-yard LHDs and two 40-tonne haulage trucks.

9-year mining period (2021–2029) with closure (2030–2039).

Mobile fleet (as modelled/listed): 30 t truck (2); LHD (2); single-boom jumbo (1); boom truck (1); Toyota Jeep (1); Toyota Prado (1); Nissan truck (1). Planned additions noted: +1 haul truck; +3 LHD.

Early-stage project; access described as helicopter-supported.

Helicopter-supported exploration access.

approximately 350 personnel, including staff and hourly workers

Timmins West Mine is an operating underground gold mine located in Timmins, Ontario, Canada. It is owned and operated by Pan American Silver Corp. through its wholly-owned subsidiary, Lake Shore Gold Corporation. Franco-Nevada Corporation holds a 2.25% net smelter returns royalty on the Timmins West Mine. The mine is situated approximately 18 to 20 kilometres west of the city of Timmins in the Cochrane District. The Timmins West Mine is part of the larger Timmins operation, which also includes the Bell Creek mine; both mines supply ore to the Bell Creek mill. The operation consists of three main gold deposits: the Timmins Deposit, the Thunder Creek Deposit, and the 144 Gap Deposit, which are all connected by underground drifts.

The Bell Creek mill has an average throughput of 4,400 tonnes per day. In 2025, the Timmins operation, which includes Timmins West, produced 103,600 ounces of gold.

The ore is stockpiled and hauled by truck to the Bell Creek mill for processing. The Bell Creek mill is a conventional free milling gold circuit that includes crushing, grinding, leaching, carbon-in-pulp (CIP), stripping, and refining processes.

underground mobile equipment fleet includes remote-controlled Load-Haul-Dump (LHD) vehicles and trucks, main production shaft is a 5.5-metre diameter, concrete-lined shaft

Location coordinates provided as project centre.

530 miners, with 310 working underground

Turquoise Ridge is an underground gold mine located in Humboldt County, Nevada, USA. It is part of the Turquoise Ridge Complex, which also includes surface mining operations. The mine is situated on the eastern flank of the Osgood Mountains in the Potosi Mining District.

approximately 2,300 tons of ore per day according to a 2017 report.

Ore from the Turquoise Ridge underground mine is processed off-site on a toll milling basis. The broader Turquoise Ridge Complex includes an autoclave, an oxide mill, and heap leach pads.

MineARC refuge chambers, third shaft, TH545i underground haul truck

development of a third shaft to increase hoisting capacity and production

During the construction phase in March 2023, 442 people were employed directly or as contractors at the project. By June 2023, this number was 454 employees and contractors. The mine is expected to employ an estimated 522 person-years during peak operation.

The Valentine Gold Mine is an open-pit mine in central Newfoundland and Labrador, Canada, with 100% ownership by Equinox Gold. It achieved commercial production in November 2025 and is expected to be the largest gold mine in Atlantic Canada. The mine plan is based on three open pits developed from the Marathon, Leprechaun, and Berry mineral deposits.

Expected to produce between 150,000 to 200,000 ounces of gold in 2026. Average annual gold production projected to be 175,000 to 200,000 ounces for the first 12 years of operation.

conventional milling operation and a carbon-in-leach (CIL) plant

Diesel-powered rotary drills with 200 mm bit size for bulk production drilling. Down-the-hole (DTH) drills with 144 mm bit size for selective drilling. 15.5 cubic metre bucket-sized hydraulic excavators and 13 cubic metre bucket-sized wheel loaders for bulk production loading. 12.0 cubic metre bucket-sized diesel hydraulic excavators for selective production loading. 140-tonne and 90-tonne payload rigid-frame haul trucks. 40-tonne articulated trucks for production hauling. Ancillary and service equipment to support mining operations.

A Phase 2 expansion is advancing to increase the plant's throughput from 2.5 million tonnes per year to more than 4.5 million tonnes per year, expected to increase annual production by approximately 25% to a range of 225,000 to 250,000 ounces per year.

Historic antimony-gold mine with redevelopment potential.

Conceptual gravity/flotation

Exploration/rehab equipment

Operating gold mine complex near Rouyn-Noranda (Abitibi, Quebec).

Ore processed at Doyon mill; throughput ~1.0 Mt/a (with upgrades referenced in report).

12 × 30t haul trucks; 9 × 7yd LHDs; 10 × pump trucks; 3 × bolters; 1 × production drill; 2 × 2-boom jumbos; 2 × 1-boom jumbos; 2 × 40t highway trucks; 1 × 18-passenger vehicle

Mineral Resource Estimate update report (no mine plan). Located in Eeyou Istchee James Bay region.

plan (MRE only).

Not specified (MRE update; no process plant design in provided excerpts).

Not disclosed (no fleet tables in MRE update report).

~1,200

Polymetallic underground mine producing concentrates.

Ongoing polymetallic production

Crushing, grinding, flotation

Mini Jumbos (7); Jumbos (1); Scooptrams (35); Dump Trucks (2); Utility Trucks (2); Locomotives (23); Mine Cars (237); Total (307).

~700 (planned)

Advanced copper project with updated reserve-backed mine plan and production schedule.

Planned Cu-Au production

Crushing, grinding, flotation

Electric Rotary Drill (311 mm, max 5); Electric Rope Shovel (55 m³, max 3); Diesel Hydraulic Shovel (36 m³, max 1); Front-End Loader (30 m³, max 1); Haul Truck (290 t, max 25).

Project near Yellowknife, NWT (coords provided in report).

In 2019, the Young-Davidson operation sustained 817 full-time equivalent employees at the local level.

The Young-Davidson Mine is a large, low-cost, bulk tonnage underground gold mine located in north-eastern Ontario, Canada, near Matachewan, within the Abitibi Greenstone Belt.

Production in 2025 was 153,400 ounces of gold. The guidance for 2026 projects gold production to be between 155,000 and 175,000 ounces.

The processing plant has a capacity of 8,000 tonnes per day. The process involves a single-stage semi-autogenous grinding (SAG) circuit, followed by flotation. The flotation concentrate is then further ground and leached in a carbon-in-leach (CIL) circuit. The flotation tailings are also leached in a separate CIL circuit. Gold is recovered from the carbon, followed by electro-winning and the pouring of doré bars. The tailings are treated using the SO2/Air cyanide destruction method. The facility also includes a paste backfill plant that can supply over 8,000 tonnes per day of paste to the underground workings.

The equipment fleet includes large, modern machinery. Scooptrams are used to load and haul ore to an ore pass system. In 2024, the mine took delivery of two Cat R2900 XE diesel-electric loaders, which replaced two R2900G XTRA loaders and one R1700 loader. Ore is hoisted to the surface in two 24.5-tonne skips in the Northgate shaft.

A multi-year expansion of the lower mine infrastructure was completed in July 2020.

150–250 personnel

Abra Mine is a high‑grade underground lead–silver mine located in the Gascoyne region of Western Australia, about 110 km north of Meekatharra. It is one of the most significant new base metals projects in Australia.

UG stoping; flotation producing Pb concentrate with Ag credits

Underground Mining Equipment , Jumbo drill rigs, Longhole production drills, Load–Haul–Dump (LHD) loaders, Underground haul truck, Charge-up unit, Underground service vehicles

High-grade Cu-Zn VMS deposit in Arizona; drilling and economic studies underway.

The project will use a conventional process flow sheet with jaw crushing, SAG and ball mill grinding, and flotation to produce separate copper, zinc, and lead concentrates. Approximately 50% of the tailings will be used as underground fill. The mine will also feature a double-lined dewatered (dry-stack) tailings storage facility.

The Antler Copper Project is advancing through its permitting phase. The Mine Plan of Operations (MPO) submitted to the US Bureau of Land Management is the only federal permit required and is being evaluated under an Environmental Assessment, with a decision expected in early 2026. Arizona State mine permits are anticipated to be issued progressively throughout 2025. The project is on track to be fully permitted by the first quarter of 2026. A Definitive Feasibility Study (DFS) was expected to be completed as early as Q4 2025. Construction activities are targeted to begin in the second half of 2025, with concentrate shipping forecast to start by 2027. An updated Mineral Resource Estimate was released in May 2025, reporting a total resource of 14.2 million tonnes at 3.8% copper equivalent.

Growing gold resource SE of Leonora; scoping/DFS studies.

Conventional CIL/CIP (study stage)

String of OP gold mines in Nova Scotia; part of SBM’s Atlantic Gold division.

OP mining; milling + CIL processing

Note: Canadian. Sayona’s Australian assets are largely exploration-stage (Pilbara JV with Altura/FMG).

Proposed open pit + concentrator

Kalgoorlie-region deposits; acquired/absorbed into Northern Star/Silver Lake portfolios 2021–22.

Proposed conventional CIL (study)