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Addington Enterprises
Addwest Minerals
AGIP Oil Co.
Ameralia Inc.
American Soda Inc.
American Tripoli
Antoro Resources
Avista Capital
Badger Mining Corp.
Bayswater Resources
Behre Dolber
Black Fire Minerals
Brancote Mining LTD. (UK)
Chemtura
Church & Dwight
CMP (Chile)
Colorado Geological Survey
Dampler Salt LTD. (Aus)
Danko JSC (Ukraine)
Delhur Industries
Ebony Iron
Eldorado Gold Corp.
Fimatec USA
First Solar Inc
Formation Resources
Gossan Resources
Guymines (Guyana)
International Silica
Interock Mining Co.
Koch Industries
KDR Engineering
Mars & Co.
Microlite
Minelco (LKAB Sub.)
Minelco USA (Sub of LKAB - Sweden)
Minera La Roja (Mexico)
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Mississippi Chemical
National Renewable Energy Lab (NREL)
Newmont Mining Corp.
Pacmag Metals
Pegasus Gold
Peninsula Energy
Phelps Dodge
Philbro Chemicals
Pira International
Placer Dome
Production Minerals
Queensland Industrial Minerals
R.W. Beck
Rhone-Poulenc
Rio Tinto Exploration
Saint Gobain
S&B Industrial Minerals S.A.
SMR Aggregates
State Government Campeche Mexico
Southwest Production Corp
Superior Management
Teberebie Goldfields (Ghana)
Technon (UK)
Teck-Cominco
Texaco Inc.
TvanF Associates
U.S. Borax & Chemical
Union Carbide
Union Pacific Resources
Universal Aggregates (CONSOL Coal Sub.)
Uramin
Vulcan Chemicals
Warburg Pincus
Western Stronium
Wold Trona
Water Remediation Technology Inc
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