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Minesites Directory

Browse minesites. Each card shows company ownership and their most recent associated articles.

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Page 57 of 147 (3508 total)
American Gypsum Company LLC - Albuquerque Wallboard Plant

New Mexico, United States · Processing Facility

Operating
Gypsum
Companies & ownership
  • Eagle Materials Inc.
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American Gypsum Company LLC - Eagle-Gypsum Mine

Colorado, United States · Open Pit

Operating
Gypsum
Overview
Colorado's largest gypsum mine.
Companies & ownership
  • Eagle Materials Inc.
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Centex Materials LLC - Buda Limestone Quarry

Texas, United States · Quarry

Operating
Phosphate
Workforce
25
Production
The quarry produced 800,000 tons in fiscal year 2024, 730,000 tons in fiscal year 2023, and 800,000 tons in fiscal year 2022.
Processing
The facility includes a washed plant that produces clean, graded aggregates. Products include flexible base, washed stone, and sand for concrete and asphalt purposes, which meet City of Austin and Texas Department of Transportation (TxDOT) specifications.
Expansion
The Texas Commission on Environmental Quality has received a permit application for the Centex Materials Buda Plant, as of early 2026.
Companies & ownership
  • Eagle Materials Inc.
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Bullskin Stone & Lime LLC Quarry

Pennsylvania, United States · Underground

Operating
GoldSilverIron OreCoalDiamondsLithium+38
Workforce
25 (2019)
Overview
The Bullskin Stone & Lime LLC Quarry is an active underground mine located in Fayette County, Pennsylvania. The commodities produced are aggregates, specifically limestone.
Production
1,214,405 tons of limestone (2019)
Companies & ownership
  • Eagle Materials Inc.
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Battletown Materials LLC Quarry

Kentucky, United States · Quarry

Operating
Phosphate
Opened
1904-01-01
Workforce
40+ employees
Overview
The Battletown Materials LLC Quarry is a surface limestone quarry located in Meade County, Kentucky, United States. It has been active since 1904. The primary commodity is crushed and broken limestone. The quarry also produces high calcium limestone for Portland Cement production and a variety of construction aggregates. These products are used for commercial and residential construction, heavy civil and infrastructure projects, concrete and asphalt aggregate, and agricultural lime. Materials are transported from the site by both truck and barge, with the company operating its own 1250HP towboat for barge operations on the Ohio River.
Expansion
underwent a large expansion that began in 2013 to also mine material for construction aggregate
Companies & ownership
  • Eagle Materials Inc.
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Texas Lehigh Cement Company LP

Texas, United States · Processing Facility

Operating
CopperGoldSilverIron OreCoalDiamonds+39
Opened
1978-01-01
Workforce
51 to 200 employees
Overview
The original plant, located in Buda, Texas, began construction in December 1976 and was completed in June 1978.
Production
The Buda plant has an annual rated capacity of 1,300,000 short tons. A 2018 permit application for a new kiln proposed a clinker production rate of 1,314,000 short tons per year.
Processing
dry-process 4-stage preheater/pre-calciner kiln
Companies & ownership
  • Eagle Materials Inc.
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Nevada Cement Company LLC Plant

Nevada, United States · Processing Facility

Operating
Phosphate
Companies & ownership
  • Eagle Materials Inc.
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Mountain Cement Company LLC Plant

Wyoming, United States · Processing Facility

Operating
Phosphate
Opened
1927-01-01
Workforce
Approximately 110-140 employees. An additional 5 permanent jobs and over 250 construction jobs are expected during the "Project K3" expansion.
Overview
The Mountain Cement Company LLC Plant is an operating cement processing facility in Wyoming. A major modernization and expansion project, 'Project K3', is underway to increase capacity and improve efficiencies.
Production
The plant's current annual capacity is 800,000 tons of cement. The expansion project is expected to increase the annual manufacturing capacity by 50% to approximately 1.2 million tons (1.1 million metric tonnes).
Processing
The facility processes limestone, shale, gypsum, and iron ore to manufacture Portland Cement. The plant uses a dry-feed kiln with a two-stage preheater. The modernisation will incorporate state-of-the-art technology to improve operating efficiencies.
Equipment
The plant has two rotary kilns. In 2023, a polysius® booster mill was implemented to increase grinding capacity. The modernisation project will include a limestone impact crusher circuit, a quadropol® Vertical Roller Mill, a five-stage preheater, a two-pier rotary kiln with a polguide® drive system, an in-line calciner, a step combustor for alternative fuels, and a polytrack® ECO clinker cooler.
Expansion
A major expansion and modernisation project, known as "Project K3", is underway with an estimated investment of approximately $430 million. Construction is scheduled to begin immediately, with a startup anticipated in the second half of the 2026 calendar year. The project is expected to increase annual manufacturing capacity by 50% and reduce manufacturing costs by about 25% and CO2 intensity by nearly 20%.
Companies & ownership
  • Eagle Materials Inc.
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Kosmos Cement Company LLC Plant

Kentucky, United States · Processing Facility

Operating
Titanium
Opened
1905-01-01
Production
The plant has the capacity to produce nearly 1.7 million tons of cement annually. The acquisition by Eagle Materials added 1.7 million tonnes of cement production to its portfolio.
Processing
The plant was upgraded in 1974 with a new rotary cement kiln production line, and a vertical preheater tower and precalciner were added by 2000. It also has three finish mills that use high-efficiency separators. The facility produces Type IL blended portland-limestone cement and Type III Low Alkali Portland cement. A 2025 construction permit was for the installation of new pneumatic feed systems for shredded tire derived fuel for the kiln.
Equipment
Rotary cement kiln, vertical preheater tower, precalciner, three finish mills, pneumatic feed systems.
Companies & ownership
  • Eagle Materials Inc.
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Illinois Cement Company LLC Plant

Illinois, United States · Processing Facility

Operating
Phosphate
Workforce
A 2010 report stated direct employment of 183.
Overview
The Illinois Cement Company LLC Plant is a cement processing facility located in LaSalle, Illinois, United States. It is a wholly-owned subsidiary of the US mining company Eagle Materials Inc. The plant is currently in operation.
Production
1,000,000 tons per year of cement.
Expansion
A significant expansion and modernisation project was undertaken in 2005 and commissioned at the end of 2006. This project included the installation of a new 4,000 horsepower cement finish mill in 1999, a new rock crusher, the opening of a new quarry in Dimmick Township, an 80,000-ton capacity finished cement storage dome, a new vertical roller mill for raw feed, and a 5-stage precalciner system.
Companies & ownership
  • Eagle Materials Inc.
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Fairborn Cement Company LLC Plant

Ohio, United States · Processing Facility

Operating
Phosphate
Companies & ownership
  • Eagle Materials Inc.
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Central Plains Cement Company LLC - Tulsa Plant

Oklahoma, United States · Open Pit

Operating
Phosphate
Opened
1961-01-01
Production
The combined production capacity of the Tulsa and Sugar Creek manufacturing plants is over 1.7 million tons of cement per year.
Processing
The cement production process includes raw milling, pyroprocessing, and finish milling of limestone and other raw materials. The plant also uses fuel quality waste as an alternative fuel source.
Companies & ownership
  • Eagle Materials Inc.
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Central Plains Cement Company LLC - Sugar Creek Plant

Missouri, United States · Processing Facility

Operating
Phosphate
Companies & ownership
  • Eagle Materials Inc.
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Songwe Hill Rare Earth Project

Phalombe District, Malawi · Open Pit

Under Development
Rare Earth Elements
Companies & ownership
  • Malawi Government
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Malingunde Graphite Project

Lilongwe District, Malawi · Open Pit

Under Development
Graphite
Companies & ownership
  • Malawi Government
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Kasiya Rutile-Graphite Project

Lilongwe and Dowa districts, Malawi · Open Pit

Under Development
RutileGraphite
Mine life
25 years
Workforce
almost 1,100 during steady-state operations
Production
The Optimised Pre-Feasibility Study (OPFS) outlines average annual production of 222,000 tonnes of natural rutile and 233,000 tonnes of natural flake graphite over the initial mine life. At a steady state, the project is anticipated to produce approximately 246,000 tonnes of rutile and 265,000 tonnes of graphite per year.
Processing
The project will use conventional processing through physical separation. A graphite-rich concentrate will be collected from gravity spirals and processed in a separate graphite flotation plant.
Equipment
The mining fleet is planned to include draglines, large excavators, mine trucks, front-end loaders, dozers, and graders. Potential suppliers identified include Caterpillar, Komatsu, Liebherr, Hitachi, and Volvo.
Expansion
The project is currently in the Definitive Feasibility Study (DFS) phase, which is expected to be completed in the first quarter of 2026. An Optimised Pre-Feasibility Study (OPFS) was completed in January 2025. A March 2026 updated Mineral Resource Estimate significantly increased the resource confidence, with a total mineral resource of 2.1 billion tonnes at 0.96% rutile and 0.95% total graphitic carbon. The project will use a dry mining method, which was confirmed in pilot phase trials in 2024.
Companies & ownership
  • Malawi Government
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Kangankunde Rare Earths Project

Southern Region, Malawi · Open Pit

Under Development
Rare Earth Elements
Opened
2026-01-01
Mine life
45 years
Workforce
more than 200 full-time equivalent roles during the construction phase and more than 100 full-time equivalent roles during the operational phase.
Production
Stage 1 is designed to produce an average of approximately 15,300 tonnes per annum of monazite concentrate. This will contain about 8,400 tonnes per annum of rare earth oxides.
Processing
The processing method is a simple flowsheet using gravity and magnetic separation with limited reagents to produce a premium concentrate with a 55% Total Rare Earth Oxide (TREO) grade. The process plant is designed to process 60 tonnes of ore per hour.
Equipment
The owner-operated mining fleet includes equipment from Komatsu.
Expansion
The project is fully permitted and fully funded for Stage 1 construction. Lindian Resources increased its ownership to 100% in late 2025. Early construction works are underway, and a design-and-construct contract for the Stage 1 processing plant has been awarded. A 15-year offtake agreement for a portion of the production has been signed with Iluka Resources. The project is noted for its high-grade mineralisation and low levels of radionuclides.
Companies & ownership
  • Malawi Government
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Tijirit Gold Project

Inchiri Region, Mauritania · Open Pit

Closed
Gold
End year
2024
Overview
Aya Gold & Silver Inc. granted an exclusive option on its 75% interest in the Tijirit Project to Mx2 Mining Inc. in September 2024. In December 2024, following a decision by the Mauritanian government, Aya Gold & Silver abandoned the project, winding down local operations and exiting Mauritania.
Processing
A feasibility study was assessing a conventional primary crush and a semi-autogenous grinding (SAG) milling circuit, to be followed by gravity gold recovery and leaching.
Companies & ownership
  • Aya Gold & Silver Inc.
    TSX:AYA
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Azegour

Marrakech-Safi, Morocco · Underground

Historic Mine
MolybdenumTungstenCopper
Overview
The Azegour property consists of a historic molybdenum-tungsten-copper mine, now held as an exploration and evaluation asset. The property is located in the High Atlas Mountains, approximately 80 kilometres south-southwest of Marrakech. It comprises one mining permit and two exploration permits.
Expansion
In June 2021, Aya Gold & Silver announced it had been granted two new exploration permits in the Azegour area, covering a total of 29 square kilometres. These permits are located adjacent to the Azegour granite intrusion and host historical copper, lead, and zinc occurrences. The company stated at the time that exploration on the new permits was scheduled to begin in the subsequent months.
Companies & ownership
  • Aya Gold & Silver Inc.
    TSX:AYA
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Boumadine Project

Drâa-Tafilalet, Morocco · Open Pit

Feasibility
GoldSilverZincLead
End year
2036
Mine life
11 years
Production
The Preliminary Economic Assessment (PEA) projects an average annual production of approximately 401,000 ounces of gold equivalent during the first five years. Over the life of the mine, the average head grade is expected to be 3.85 g/t gold equivalent.
Processing
The planned processing method is a conventional flotation plant with an annual throughput capacity of 2.9 million tonnes (8,000 tonnes per day). This will produce three separate saleable concentrates: zinc, lead, and pyrite, all containing gold and silver.
Expansion
The Boumadine Project is advancing to a Feasibility Study, which is targeted for completion in late 2027. An aggressive infill drilling campaign is underway to support a mineral resource update. The company is also evaluating the potential for a roaster facility to further treat the pyrite concentrate. Commercial production and sale of material from a historical flotation stockpile began in late 2025.
Companies & ownership
  • Aya Gold & Silver Inc.
    TSX:AYA
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Zgounder Silver Mine

Souss-Massa, Morocco · Open Pit

Operating
Silver
End year
2036
Workforce
over 2,000 jobs
Overview
The Zgounder Silver Mine, 85% owned by Aya Gold & Silver Inc., is an operating open-pit and underground mine in Souss-Massa, Morocco. It declared commercial production for expanded operations in December 2024, increasing plant capacity. The mine is projected to operate until 2036, targeting an average annual production of 6 million ounces of silver.
Production
Silver production in 2024 totalled 1,646,265 ounces. For the full year 2025, silver production was 4.83 million ounces, a 193% increase over 2024. The company targets an average annual production of 6 million ounces of silver through 2036. In the third quarter of 2025, the mine achieved record production of 1.35 million ounces. The fourth quarter of 2025 saw production of 1.37 million ounces.
Processing
The processing plant includes a flotation and cyanidation circuit. Following an expansion, the processing rate averaged 3,796 tonnes per day in the fourth quarter of 2025, which is 41% above its nameplate capacity. The processing plant is expected to operate at a rate of 3,650 kilotonnes per day through 2026 and then at 3,850 kilotonnes per day for the remainder of the mine's life. The average silver recovery for the full year 2025 was 88.4%. Life of mine silver recovery is estimated at 91.5%.
Expansion
The company achieved financial completion for a US$100 million project loan from the European Bank for Reconstruction and Development (EBRD) for the Zgounder expansion in January 2026. The expansion project increased the plant capacity from 700 tonnes per day to 2,700 tonnes per day. An updated Life of Mine plan includes a total of 8,340 metres of lateral development and 2,402 metres of vertical development planned by 2029. Ongoing exploration continues to extend mineralisation, with high-grade results reported in February 2026 from drilling at depth and near the Western Fault.
Companies & ownership
  • Aya Gold & Silver Inc.
    TSX:AYA
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Waterbury Lake Property

Saskatchewan, Canada · Solution

Under Development
Uranium
Mine life
6 years
Overview
The Waterbury Lake Property is a uranium exploration and development project located in the eastern portion of the Athabasca Basin. It hosts two deposits: the Tthe Heldeth Túé (formerly J Zone) and the Huskie uranium deposits. A Preliminary Economic Assessment (PEA) has been completed for the Tthe Heldeth Túé deposit, evaluating the use of the In-Situ Recovery (ISR) mining method.
Processing
toll milling at the nearby McClean Lake mill
Equipment
freeze wall design; ISR mining does not typically involve traditional heavy earth-moving equipment
Companies & ownership
  • Denison Mines Corp.
    TSX:DML · NYSE:DNN
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Koodaideri South

Western Australia, Australia · Open Pit

Feasibility
Iron Ore
Mine life
32 years
Overview
Koodaideri South is an iron ore asset located in the Pilbara region of Western Australia, over which BCI Minerals Limited holds a potential royalty. It is not an operational mine operated by BCI Minerals.
Companies & ownership
  • BCI Minerals Limited
    ASX:BCI
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Nullagine Project

Western Australia, Australia · Open Pit

Closed
Iron Ore
Opened
2010-01-01
End year
2015
Overview
The Nullagine Project, an iron ore mine located in the East Pilbara region of Western Australia, was formerly operated by BC Iron Limited (now BCI Minerals Limited). The project was a joint venture, initially 50/50 with Fortescue Metals Group, later 75% owned by BC Iron. Operations were suspended in December 2015 due to low iron ore prices, and BC Iron sold its interest to Fortescue in October 2016, retaining a royalty. The project comprised several deposits, including Outcamp, Bonnie East, Warrigal, and Coongan, with mineralisation as a channel iron deposit (CID).
Production
target of 6 million tonnes per annum; probable ore reserve of 36Mt at 56.9% Fe; total mineral resource of 89Mt @ 54.1% Fe
Processing
Direct Shipping Ore (DSO)
Equipment
haul road, Fortescue's rail infrastructure, mine operations centre office complex
Companies & ownership
  • BCI Minerals Limited
    ASX:BCI
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Page 57 of 147 (3508 total)