National Material Company, LLC
Interstate Steel Company
National Material Processing, LLC
Interstate Steel Processing
National Galvanizing, L.P.
National Blanking
Waukegan Steel, LLC
Combined Metals of Chicago, LLC
Combined Metals of Michigan, LLC
Elgiloy Specialty Metals Division
Gibbs Interwire
Taber Extrusions, LLC
Tower Extrusions, LTD.
National Material Trading, LLC
Maryland Pig Services, L.P.
Global Tooling Resources
Metal Resources International, LLC
SKD Tooling Company, Ltd.
North American Auto Tooling