PRIMÄR ALUMINIUM PRODUKTION 
ANODEN (SODERBERG & VORGEBACKEN)
WERKSTOFFE – FEUERFESTE MATERIALIEN U. KERAMIK
BNZ Materials, Inc.
Eirich Machines, Inc.
NV Gouda Vuurvast
A.P Green Refractories
Harbison-Walker Refractories
Hodges Group
Hope Engineering Services
McAllister Mills
MINTEQ International
Nat'l Refractories & Mineral Corp.
Saint Gobain Industrial Ceramics
Simonsen & Sons
Skamol Insulation
Thermal Ceramics
TYK America
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