Manufacturers

A & M Refractories, Inc.

Alcan Specialty Aluminas N.A.

Allied Mineral Products, Inc.

Alsey Refractories Company

American Precast Refractories, Inc.

ANH Refractories

B & B Refractories, Inc.

BNZ Materials, Inc.

Christy Refractories Company L.L.C.

Clayburn Industrial Group Ltd.

Cometals, Inc.

J.W. Hicks Company

Krosaki USA, Inc.

LWB Refractories

Matrix Refractories Division

MINTEQ® INTERNATIONAL INC.

Missouri Refractories

New Castle Refractories Company

The Nock and Son Company

Plibrico Company

Refractarios Peruanos S. A.

Resco Products, Inc.

Ribbon Technology Corporation

Riverside Refractories, Inc.

Thermal Ceramics

Thermal Ceramics Inc.

Unifrax Corporation

United Refractories

Vesuvius USA Corporation

Wahl Refractories, Inc.

Wesco Refractories

Whetstone Technology