1 Exhibit 21 Subsidiaries of the Company Other name, if any, State or other jurisdiction that the subsidiary Name of incorporation does business under BowSteel Corporation Delaware BowSteel of Texas Corporation Delaware Extrusion Technology Corporation of America Ohio Galt Alloys, Inc. Ohio NATI Gas Company Ohio New Century Metals Los Angelos, Inc. Delaware New Century Metals, Inc. Ohio Pierce-Spafford Metals Corporation California Reamet, S.A. France RMI Metals, Inc. Utah Micron Metals, Inc. RMI Titanium Company Ohio RTI Energy Systems, Inc. Ohio RTI International Metals Limited United Kingdom Tradco, Inc. Missouri Weld-Tech Engineering Services, L.P. Texas