HC2 Holdings, Inc.
Northwest Pipe Co.
Servotronics, Inc.
SG Blocks, Inc.
Friedman Industries, Inc.
Grupo SIMEC SAB de CV
Valmont Industries, Inc.
RBC Bearings, Inc.
Gulf Island Fabrication, Inc.
Mechel PAO
Companhia Siderurgica Nacional
Insteel Industries, Inc.
Encore Wire Corp. (Delaware)
Park-Ohio Holdings Corp.
ARC Group Worldwide, Inc.
Nucor Corp.
SunCoke Energy Partners LP
Schnitzer Steel Industries, Inc.
Mesabi Trust
TimkenSteel Corp.
Ryerson Holding Corp.
Carpenter Technology Corp.
ArcelorMittal SA
Ossen Innovation Co., Ltd.
Haynes International, Inc.
Harsco Corp.
Gerdau SA
Shiloh Industries, Inc.
Ampco-Pittsburgh Corp.
Vale SA
United States Antimony Corp.
CompX International, Inc.
DMC Global, Inc.
Commercial Metals Co.
United States Steel Corp.
Olympic Steel, Inc.
Allegheny Technologies, Inc.
POSCO
AK Steel Holding Corp.
Steel Dynamics, Inc.
