Mining and Quarrying of Nonmetallic Minerals (No Fuels)

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United States Lime & Minerals, Inc.

United States Lime & Minerals, Inc., together with its subsidiaries, engages in the manufacture and sale of lime and limestone products in the United States. It operates in two segments, Lime and Limestone Operations, and Natural Gas Interests. The Lime and Limestone Operations segment extracts limestone from open-pit quarries and an underground mine, and processes it as pulverized limestone, ... more

Amcol International Corporation

AMCOL International Corporation engages in the development and application of minerals and technology products and services to various industrial and consumer markets. It operates in four segments: Minerals and Materials, Environmental, Oilfield Services, and Transportation. The Minerals and Materials segment mines, processes, and distributes minerals and products, including clay with similar ... more

Compass Minerals Intl Inc

Compass Minerals International, Inc., through its subsidiaries, produces and markets inorganic mineral products primarily in North America and the United Kingdom. The company operates in two segments, Salt and Specialty Fertilizer. The Salt segment produces salt and magnesium chloride for use in road deicing and dust control, food processing, water softeners, pool salt, and agricultural and ... more

Hecla Mining Company

Hecla Mining Company, together with its subsidiaries, engages in the discovery, acquisition, development, production, and marketing of silver, gold, lead, and zinc. The company produces lead, zinc, and bulk concentrates and sells them to custom smelters; and unrefined gold and silver bullion bars, which it sells to precious metals traders. It holds 100% interest in the Greens Creek operating ... more

Intrepid Potash, Inc

Intrepid Potash, Inc., together with its subsidiaries, engages in the production and marketing of muriate of potash or potassium chloride, and langbeinite under the Trio brand name primarily in the United States. It also offers by-products, including salt, magnesium chloride, and metal recovery salts. Intrepid serves agricultural, industrial, and feed markets. The company was founded in 2000 ... more

Martin Marietta Materials, Inc.

Martin Marietta Materials, Inc., together with its subsidiaries, engages in the production and sale of aggregates for the construction industry primarily in the United States, Canada, the Bahamas, and the Caribbean Islands. It mines, processes, and sells granite, limestone, sand, gravel, and other aggregate products for use in the public infrastructure, and nonresidential and residential ... more

Mdu Res Group Inc

MDU Resources Group, Inc. operates as a diversified natural resource company in the United States. The company generates, transmits, and distributes electricity, as well as distributes natural gas. As of December 31, 2010, it provided retail electric services to approximately 124,000 residential, commercial, industrial, and municipal customers in 177 communities and adjacent rural areas; and ... more

North American Energy Partners, Inc.

North American Energy Partners Inc. provides heavy construction and mining, piling, and pipeline installation services in Canada. The company operates in three segments: Heavy Construction and Mining, Piling, and Pipeline. The Heavy Construction and Mining segment offers surface mining support services for oil sands and other natural resources, including land clearing, stripping, muskeg ... more

Sociedad Quimica y Minera S.A.

Chemical and Mining Company of Chile Inc. engages in the production and sale of fertilizers and specialty chemicals in Chile and internationally. The company’s specialty plant nutrients include potassium nitrate, sodium nitrate, sodium potassium nitrate, and specialty blends for crops, such as vegetables, fruits, flowers, potatoes, and cotton, as well as Ultrasol for application via ... more

Teck Resources Ltd

Teck Resources Limited operates as a diversified mining, mineral processing, and metallurgical company. The company engages in a range of activities related to mining, including exploration, development, smelting, refining, safety, environmental protection, product stewardship, recycling, and research. It produces copper and metallurgical coal; zinc, lead, and molybdenum concentrates; ... more


USEC Inc., together with its subsidiaries, supplies low enriched uranium (LEU) to commercial nuclear power plants in the United States and internationally. The company sells the separative work units (SWU) component of LEU; the SWU and uranium components of LEU; and uranium. SWU is a standard unit of measurement that represents the effort required to transform a given amount of uranium into ... more

Vulcan Materials Company

Vulcan Materials Company engages in the production and sale of construction aggregates for the infrastructure industry primarily in the United States. The company operates in four segments: Aggregates, Concrete, Asphalt Mix, and Cement. The Aggregates segment produces construction aggregates, including crushed stone, sand and gravel, and recycled concrete. Its aggregates are used in public and ... more

Crosshair Energy Corp

Crosshair Energy Corporation engages in the acquisition, exploration, and development of uranium, vanadium, and gold properties in the United States and Canada. Its principal properties include Bootheel Uranium Property, which includes approximately 6,113 gross mineral acres and is located in Shirley Basin Mining District, Albany County, Wyoming; and Juniper Ridge Uranium Property that ... more

Asanko Gold Inc.

Keegan Resources Inc., a natural resource company, engages in the acquisition and exploration of mineral resources in west Ghana, Africa. The company primarily explores for gold ores. It principally owns interests in the Esaase gold property and the Asumura gold property located in south west Ghana. The company was formerly known as Quicksilver Ventures Inc. and changed its name to Keegan ... more

Kimber Resources Inc

Kimber Resources Inc., a junior mineral resource company, engages in the acquisition, exploration, and development of mineral resource properties in Mexico. The company primarily explores for gold and silver deposits. Its principal property includes the Monterde Property, which consists of 35 mineral concessions totaling approximately 29,296 hectares located in the Sierra Madre mountains of ... more