Exhibit 21

TRINITY INDUSTRIES, INC.

The following is a list of subsidiaries as of February 19, 2009, omitting some subsidiaries which,
considered in aggregate, do not constitute a significant subsidiary.

	Organized	Ownership
Name of Subsidiary	under laws of	by Registrant
International Industrial Indemnity Company	Vermont		100	%
Reunion General Agency, Inc.	Texas		100	%
Transit Mix Concrete & Materials Company	Delaware		100	%
Armor Materials, Inc.	Delaware		100	%
Armor Aggregates, Inc.	Delaware		100	%
Transit Mix Concrete & Materials Co. of Louisiana	Delaware		100	%
Transit Mix Transportation Services, LLC	Delaware		100	%
Trinity Materials, Inc.	Delaware		100	%
Trinity Argentina S.R.L.	Argentina		100	%
Trinity Containers, LLC	Delaware		100	%
Trinity Corporate Services, LLC	Delaware		100	%
Trinity Financial Services, Inc.	Delaware		100	%
Trinity Heads, Inc.	Delaware		100	%
Trinity Highway Products, LLC	Delaware		100	%
Trinity Industries International, Inc.	Delaware		100	%
Trinity Industries International Holdings AG	Switzerland		100	%
Administradora Especializada, S. de R.L. de C.V	Mexico		100	%
Grupo Tatsa, S. de R.L. de C.V	Mexico		100	%
Trinity Industries de México, S. de R.L. de C.V.	Mexico		100	%
OFE, S. de R.L. de C.V.	Mexico		100	%
Asistencia Profesional Corporativa, S.de R.L. de C.V.	Mexico		100	%
Trinity Industries do Brasil, Ltda.	Brazil		100	%
Trinity Industries Leasing Company	Delaware		100	%
Transport Capital, LLC	Delaware		100	%
Trinity Marine Leasing, Inc.	Delaware		100	%
Trinity Marks Company	Delaware		100	%
TILX GP II, LLC	Delaware		100	%
Trinity Rail Leasing II L.P.	Texas		1	%
TILX LP II, LLC	Delaware		100	%
Trinity Rail Leasing II L.P.	Texas		99	%
Trinity Rail Leasing Trust II	Delaware		100	%
TILX GP III, LLC	Delaware		100	%
Trinity Rail Leasing III L.P.	Texas		1	%
TILX LP III, LLC	Delaware		100	%
Trinity Rail Leasing III L.P.	Texas		99	%
TILX GP IV, LLC	Delaware		100	%
Trinity Rail Leasing IV L.P.	Texas		1	%
TILX LP IV, LLC	Delaware		100	%
Trinity Rail Leasing IV L.P.	Texas		99	%
TILX GP V, LLC	Delaware		100	%
Trinity Rail Leasing V L.P	Texas		1	%
TILX LP V, LLC	Delaware		100	%
Trinity Rail Leasing V L.P.	Texas		99	%
Trinity Rail Leasing VI, LLC	Delaware		100	%
Trinity Industries Railcar Corporation	Delaware		100	%
Trinity Logistics Group, Inc.	Texas		100	%
Trinity Central Maintenance, LLC	Delaware		100	%
Trinity Marine Products, Inc.	Delaware		100	%
Trinity Industries Metals Laboratory, Inc.	Delaware		100	%

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	Organized	Ownership
Name of Subsidiary	under laws of	by Registrant
Trinity Rail Group, LLC	Delaware		100	%
Trinity Rail de Mexico, S. de R.L. de C.V.	Mexico		100	%
Trinity Rail Sabinas, S. de R.L. de C.V.	Mexico		100	%
Thrall International Holdings LLC	Illinois		100	%
Trinity North American Freight Car, Inc.	Delaware		100	%
Trinity Parts & Components, LLC	Delaware		100	%
McConway & Torley, LLC	Delaware		100	%
Standard Forged Products, LLC	Delaware		100	%
Trinity Railcar Repair, Inc.	Delaware		100	%
Trinity Rail GmbH	Switzerland		100	%
Trinity Tank Car, Inc.	Delaware		100	%
Trinity Rail, Inc.	Delaware		100	%
Trinity Rail Management, Inc.	Delaware		100	%
TrinityRail Canada Inc.	Canada		100	%
TILX GP I, LLC	Delaware		100	%
Trinity Rail Leasing I L.P.	Texas		1	%
TILX LP I, LLC	Delaware		100	%
Trinity Rail Leasing I L.P.	Texas		99	%
Trinity Specialty Products, Inc.	Delaware		100	%
Trinity Structural Towers, Inc.	Delaware		100	%
Zephyr Construction, LLC	Delaware		100	%
___________

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