Alloy Sling Chain Industries, Ltd.

American Metals & Coal International

Baker Refractories

Brandenburg Industrial Service Co.

Considar, Inc.

Elkem Metals Co. L.P.

Ficel Transport, Inc.

General Conservation Corporation

Koch Carbon, Inc.
Koch Metals Division

Landstar Ligon

C.J. Langenfelder & Son, Inc.

Motion Industries, Inc.

A. Duie Pyle, Inc.

Showa Denko Carbon, Inc.

Stauffer Manufacturing Co.