EX-21 4 exhibit-21_13401.txt SUBSIDIARIES OF THE REGISTRANT EXHIBIT 21 ---------- SUBSIDIARIES OF THE REGISTRANT. North American Galvanizing Company* 2250 East 73rd Street - Suite 300 Tulsa, OK 74136-6832 Reinforcing Services, Inc. ** 2250 East 73rd Street - Suite 300 Tulsa, OK 74136-6832 Premier Coatings, Inc. ** 2250 East 73rd Street - Suite 300 Tulsa, OK 74136-6832 NAGaIv-Ohio, Inc. ** 1723 Cleveland Avenue, SW Canton, OH 44707 Rogers Galvanizing Company - Kansas City ** 2250 East 73rd Street - Suite 300 Tulsa, OK 74136-6832 * Wholly owned direct subsidiary ** Wholly owned indirect subsidiary