1 Exhibit 21 SUBSIDIARIES OF THE COMPANY OTHER NAME, IF ANY, STATE OR OTHER JURISDICTION THAT THE SUBSIDIARY NANE OF INCORPORATION DOES BUSINESS UNDER RMI Metals, Inc. Utah Micron Metals, Inc. TRADCO, Inc. Missouri NaTi Gas, Inc. Ohio RMI Titanium International, Inc. Barbados RMI Titanium Coiled Tubing, Inc. Texas