Exhibit 21
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AZTEC MANUFACTURING CO.
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------------------------ --------------------------
Aztec Industries, Inc. Arbor-Crowley, Inc. Atkinson Industries, Inc.
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------------------------ ------------------------
Aztec Industries Arizona
Moss Point, Inc. Galvanizing, Inc.
------------------------ ------------------------
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------------------------ ----------- --------------- Hobson Galvanizing, Inc.
Automatic Aztec Group Aztec Holdings,
Processing, Inc. Company Inc. ------------------------
------------------------ ----------- ---------------
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The Calvert Co., Inc. 1% 99%
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------------------------ Aztec Manufacturing
Partnership, Ltd.
Gulf Coast ------------------------
Galvanizing, Inc.
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------------------------ Aztec Manufacturing
Waskom Partnership, Ltd.
Arkansas ------------------------
Galvanizing, Inc.
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Rig-A-Lite
Partnership, Ltd.
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Exhibit 21
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