EXHIBIT 21.1 Impulsora e Inmobiliaria Regional, S.A. de C.V. Instalaciones y Contrataciones, S.A. de C.V. Servicios Axtel, S.A. de C.V.Exhibit • April 5th, 2004 • Installations & Hirings LTD
List of Subsidiaries Telecomunicaciones NGTV, S.A., a Venezuela corporationList of Subsidiaries • November 16th, 2006 • Interlink Global Corp • Telephone communications (no radiotelephone)
Exhibit 21Exhibit 21 • March 20th, 1996 • Phelps Dodge Corp • Primary smelting & refining of nonferrous metals
Summarized financial information is provided for these and other companies (see Note 3 to the Consolidated Financial Statements of the Corporation contained in this Form 10-K) pursuant to Article 3 - General Instructions as to Financial Statements.
LIST OF SUBSIDIARIES OF ENTRX CORPORATION Metalclad Insulation Corporation Metalclad Environmental Contractors Eco-Metalclad, Inc. Ecosistemas del Potosi, S.A. de C.V. Consultoria Ambiental Total, S.A. de C.V. Confinamiento Tecnico de Residuos...List of Subsidiaries • March 25th, 2003 • Entrx Corp • Construction - special trade contractors
Exhibit 21.1Exhibit • June 29th, 1998 • Exide Corp • Miscellaneous electrical machinery, equipment & supplies
LIST OF SUBSIDIARIES OF ENTRX CORPORATION Metalclad Insulation Corporation Entrx Financial, Inc. Metalclad Environmental Contractors Eco-Metalclad, Inc. Ecosistemas del Potosi, S.A. de C.V. Consultoria Ambiental Total, S.A. de C.V. Confinamiento...List of Subsidiaries • March 24th, 2004 • Entrx Corp • Construction - special trade contractors