0001144204-11-018910 10-K 4 20101231 20110331 20110331 ENTRX CORP 0000013547 1700 952368719 DE 1231 10-K 34 000-02000 11725569 800 NICOLLET MALL SUITE 2690 MINNEAPOLIS MN 55402 612 333-0614 800 NICOLLET MALL SUITE 2690 MINNEAPOLIS MN 55402 METALCLAD CORP 19920703 BOWER INDUSTRIES INC 19870618 PHOENIX GEMS INC 19730617 10-K 1 v216532_10k.htm EX-31.1 2 v216532_ex31-1.htm EX-31.2 3 v216532_ex31-2.htm EX-32 4 v216532_ex32.htm