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Ball Clay/ Kaolin Section
 
Gleason Clay Company
Mayfield, Kentucky
 
Roswell, Georgia

 

Macon, Georgia

A global supplier of hydrous and calcined kaolin clays with a vision to be the most admired kaolin clay company in the world.
 
Fort Worth, Texas
 
Lhoist North America is a major producer of lime, limestone, dolomite and clay products and related services for industrial, environmental and agricultural customers in the US, Canada, and Mexico
 
Mayfield, Kentucky

 

Frederick, Maryland

U.S. Silica is a leading silica sand supplier with a focus on performance materials that are essential to modern living.

 
New Canaan, Connecticut

Unimin Corporation is North America's largest producer of non-metallic industrial minerals, serving a diverse customer base with applications ranging from traditional glass and ceramics, to hydrocarbon and solar energy production, to semi-conductor computer chips.

 

Norwalk, Connecticut
 
The R.T. Vanderbilt Company is a family owned and operated mineral and chemical production company specializing in unique minerals such as wollastonite, pyrophyllite, kaolin and smectite clays in addition to dispersing agents and processing aids for the adhesive, ceramic, paint, paper ,rubber, plastics, personal care, petroleum, and household product  industries.

 

Bentonite/Barite Section

Houston, Texas

 

Secure Minerals Inc.
Calgary, Alberta, Canada

As a subsidiary of SECURE energy services, SECURE Minerals Ltd. provides mineral processing, logistics and packaging services of barite, gypsum and zeolite with distribution to the Western Canadian Sedimentary Basin. SECURE energy services is an integrated company offering specialized energy services throughout the oil and gas lifecycle form exploration to production and final reclamation.

Billings, Montana

 

Calcium Carbonate Section

Pittsburgh, Pennsylvania
 
Carmeuse Lime & Stone is a leading company specializing in manufacturing and supplying lime and limestone products for diverse applications in steel manufacturing, power generation, road construction and land development, the building industry, water treatment, waste treatment, oil and gas drilling, and chemical treatments. 
 

Riverton, West Virginia

 

Atlanta, Georgia

 

Roswell, Georgia
 
Imerys processes, enriches and combines a unique range of minerals, in many cases mined from its own deposits, to contribute essential functions to its customers’ products and processes. 
 
Fort Worth, Texas
 
Lhoist North America is a major producer of lime, limestone, dolomite and clay products and related services for industrial, environmental and agricultural customers in the US, Canada, and Mexico.

 

Mississippi Lime
St. Louis, Missouri

 
Cincinnati, Ohio
 
Omya is a leading global producer of industrial minerals; mainly fillers and pigments derived from calcium carbonate and dolomite, and is a worldwide distributor of chemical products.

 

Bethlehem, Pennsylvania

Minerals Technologies Inc. is a global supplier of PCC (precipitated calcium carbonate), GCC (ground calcium carbonate), talc and refractories, and serves the paper, plastics, steel, personal care, construction, glass, sealants and paint markets.

 

New Canaan, Connecticut

Unimin Corporation is North America's largest producer of non-metallic industrial minerals, serving a diverse customer base with applications ranging from traditional glass and ceramics, to hydrocarbon and solar energy production, to semi-conductor computer chips.

 

The sole member of the Diatomite Section is the International Diatomite Producers Association. The members of IDPA are:

 

Chemviron France SAS
Rueil-Malmaison, France

 

Reno, Nevada
 
EP Minerals, LLC is a worldwide leader in diatomaceous earth and perlite filter aids, absorbents, and functional additives serving dozens of diverse markets from food and beverage to biofuels, paints and plastics. 

 

Roswell, Georgia

 

Tokyo, Japan

 

Feldspar Section

Roswell, Georgia

 

New Canaan, Connecticut

Unimin Corporation is North America's largest producer of non-metallic industrial minerals, serving a diverse customer base with applications ranging from traditional glass and ceramics, to hydrocarbon and solar energy production, to semi-conductor computer chips.

 

Frederick, Maryland

 

U.S. Silica is a leading silica sand supplier with a focus on performance materials that are essential to modern living.

 

The sole member of the Industrial Sand Section is the National Industrial Sand association. The members of NISA are:
 
A. F. Gelhar Co., Inc.
Fairwater, Wisconsin

 
Berlin, Wisconsin

Badger Mining Corporation is a family-owned producer of industrial silica sand with core values focused on the success of our associates, our customers and our communities.

Bolinder Resources
Tooele, Utah

Capital Sand Proppants, LLC
Jefferson City, Missouri

Akron, Ohio

CED Process Minerals, Inc. manufactures products from cristobalite, a silicate mineral with unique physical characteristics that make it suitable and superior for use in several industrial applications such as investment casting, polishing abrasives, quartz countertops, as well as filler in urethanes, epoxy, elastomers, powder coats and other high wear coatings.  
 
Chardon, Ohio

Uncommon performance from the world's most common mineral.

 

G. W. Bryant Core Sands, Inc.
McConnellsville, New York
 
Calgary, Alberta, Canada
 
Heemskirk Canada is a diversified industrial mineral mining company based in Calgary, Alberta (we are the North American base for our Australian parent company, Heemskirk Consolidated, a Global Mining House that owns, operates, develops and invests in mining operations worldwide), and we are currently active in barite, silica, gypsum, and natural zeolites and concentrated on the energy industry. 

 

Houston, Texas
 
Spinks Clay is a leading producer of superior quality dry and wet-process ball clay and kaolin products that are used in a variety of industries in North America, from sanitary ware and tile to rubber and chemical manufacture.

 

North Mankato, Minnesota

 

Columbus, Ohio

 

Troy Grove, Illinois

Located in Troy Grove Illinois Manley Bros is a producer of a wide range of silica sands used by industries throughout North America.

 

Muskegon, Michigan
 
Simi Valley, California

 

Port Norris, New Jersey
 
Superior Silica Sands, with quarry operations in Texas and Wisconsin, is a dynamic, high growth industrial sand supplier having a diverse market base with a strong focus on high quality frac sands for the oil & gas industry, and a full product line of "Ottawa White" type sands for customers throughout North America.

 

Thompson, Ohio
 
Edmonton, Alberta, Canada

Sil Industrial Minerals is Western Canada's leading producer of silica sand for many diverse industries, including but not limited to oil and gas, construction material manufacturers, filtration, and recreational users.

 

New Canaan, Connecticut

Unimin Corporation is North America's largest producer of non-metallic industrial minerals, serving a diverse customer base with applications ranging from traditional glass and ceramics, to hydrocarbon and solar energy production, to semi-conductor computer chips.
Frederick, Maryland

 

U.S. Silica is a leading silica sand supplier with a focus on performance materials that are essential to modern living.

 
Bridgeton, New Jersey
 
Whibco Inc., established in 1841, is America’s first foundry sand producer, and remains a leading producer in the northeast region of industrial sands and construction aggregates.
 

Other Industrial Minerals Section

St. Paul, Minnesota
 
Pittsburgh, Pennsylvania
Atlanta, Georgia

The Quikrete Companies are the largest manufacturers of packaged concrete in the United States and an innovative leader in the commercial building and home improvement industries.

 

Soda Ash Section

Ciner
New York, New York
 

Genesis Energy L.P.

Philadelphia, Pennsylvania

 
Overland Park, Kansas

Using a unique, ecologically friendly process, Searles Valley Minerals processes brine solutions from Searles Lake to produce boric acid, sodium carbonate, sodium sulfate, several specialty forms of borax, and salt. 

 

Houston, Texas

Solvay Chemicals, Inc. and Solvay Fluorides, LLC, are part of the Solvay Group, the leading global producer of hydrogen peroxide, soda ash, sodium bicarbonate, and sodium percarbonate, and are established in markets ranging from alternative energy, automotive, pharmaceuticals, pulp & paper and many others. 
 
East Hanover, New Jersey

Tata Chemicals North America Inc. is a leading global manufacturer of natural soda ash from its Green River, WY manufacturing operation and is owned by Tata Chemicals Ltd, which is the world’s second largest soda ash producer.
 
Atlanta, Georgia

The Quikrete Companies are the largest manufacturers of packaged concrete in the United States and an innovative leader in the commercial building and home improvement industries.
 
Talc/Wollastonite Section


Roswell, Georgia
 
Imerys processes, enriches and combines a unique range of minerals, in many cases mined from its own deposits, to contribute essential functions to its customers’ products and processes. 

Benwood, West Virginia
  
Bethlehem, Pennsylvania

Minerals Technologies Inc. is a global supplier of PCC (precipitated calcium carbonate), GCC (ground calcium carbonate), talc and refractories, and serves the paper, plastics, steel, personal care, construction, glass, sealants and paint markets.
 
Norwalk, Connecticut
 
The R.T. Vanderbilt Company is a family owned and operated mineral and chemical production company specializing in unique minerals such as wollastonite, pyrophyllite, kaolin and smectite clays in addition to dispersing agents and processing aids for the adhesive, ceramic, paint, paper ,rubber, plastics, personal care, petroleum, and household product  industries.

 

 
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