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Clay, Ceramic, and Refractory Minerals, NEC (179)

Bentonite (44)

   Wyo-Ben, Inc

   Cetco Oilfield Services Co

   S & B Indl Minerals Na Inc

   Cetco

   Central Oregon Bentonite CO

   Southern Colorado Bentonite

   Black Hills Bentonite, A Limited Liability Company

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Clay (44)

   Gladding Mc Bean Clay Products

   Pacific Custom Materials Inc

   Webber Plyley Inc

   US Silica CO

   Glenn Hammer

   US Clay Lp

   Imerys Pigments & Additives

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Clay and Related Minerals, Nec (41)

   Tanku

   Mission Clay Products

   Gibson Liquid Waste Removal

   J & D Fossils & Minerals

   Reyes Magnesite

   Art Attala

   Sleeping Dog Studio

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Clays, Except Kaolin and Ball (19)

   Applied Minerals Inc

   Nano Clays LLC

   US Clay Lp

   Zeo Tech Corp

   Nevada North Resources USA

   Applied Minerals, Inc

   Oil-Dri Mounds Production CO

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Feldspar Mining (4)

   Unimin Corp

   Hawkins Mine

   Feldspar Corp

   The Feldspar Corporation

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Fire Clay Mining (5)

   The Clay Messer Company Incorporated

   E J Bognar Inc

   Cordova Clay CO Inc

   Mantle Mining Co

   E J Bognar, Inc

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Fuller's Earth Mining (5)

   Milwhite Inc

   Widearray Electrical

   Natural Earth Technologie

   Lionforce Inc

   Milwhite, Inc

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Shale (Common) Quarrying (12)

   Grosso Materials Inc

   Buildex, Inc

   Rock Drilling Solutions Inc

   Rdt Inc

   Harry B Lesh Jr

   Douglas Eckhart Excavating

   Callahan & Nannini Quarry, Inc

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Stoneware Clay Mining (5)

   Bognar & CO Inc

   Robert D Mc Dougal CPA

   Haydude

   Platinum Stucco & Stone

   Sabine Neches, Inc

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