National Material Company, LLC
National Material Processing, LLC
Interstate Steel Processing
National Galvanizing, L.P.
National Blanking
Waukegan Steel, LLC
Lockport Steel, LLC
Combined Metals Company
Combined Service Centers
Elgiloy Specialty Metals
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
