(Last Revised 5/2013) Arizona Galvanizing, Inc. 75-2508628 4/28/93 Hobson Galvanizing, Inc. 72-1350019 4/4/97 Arkgalv, Inc. ( d/b/a Arkansas Galvanizing, Inc.) 75-2254883 11/29/88 AR AR MS MS The Calvert Company, Inc. 64-0792921 9/28/90 MS AZ AZ LA LA AZZ Holdings, Inc. 51-0337457 12/3/91 DE DE Aztec Manufacturing Partnership, Ltd. 75-2403896 12/4/91 TX TX Rig-A-Lite Partnership, Ltd. 75-0353821 12/4/91 TX TX TX TX Aztec Manufacturing- Waskom Partnership, Ltd. 75-2403909 12/4/91 International Galvanizers Partnership, Ltd. 76-0553184 11/26/97 TX TX 1% General Partner 99% Limited Partner Aztec Industries, Inc. - Moss Point 75-2107319 3/1/86 MS Automatic Processing Incorporated 64-0594499 1/6/77 State of Commercial Domicile Date of Formation Reporting Legend: Domestic Corporation Domestic Limited Partnership State of Formation AZZ 75-2222222 3/29/59 TX DE Footnote Reference FEIN MS Drilling Rig Electrical Systems Co. Partnership, Ltd. 75-2733744 12/29/97 TX TX AZZ incorporated 75-0948250 3/26/56 TX TX AL AL Gulf Coast Galvanizing, Inc. 75-2493283 1/28/94 TX DE Arbor-Crowley, Inc. 51-0337454 12/3/91 KS KS Atkinson Industries, Inc. 48-0126010 1/23/36 Aztec Industries, Inc. 75-1318815 8/21/69 MS MS MS AZZ GP, LLC No FEÍN 9/30/2000 TX DE AZZ LP, LLC No FEÍN 9/30/2000 TX DE Domestic “Check- the-Box” Limited Partnership Domestic LLC CGIT Systems, Inc. 75-2832437 9/1/99 MA DE Westside Galvanizing Services, Inc. 72-0866859 2/1/2000 LA DE AZZ Group, LP 75-2403898 9/30/00 TX DE 1% General Partner 99% Limited Partner Central Electric Company MO 43-0995652 MO Carter and Crawley, Inc. SC 75-2960819 DE Central Electric Manufacturing Company MO 43-0716500 MO Electrical Power Systems, Inc. OK 43-1759385 MO Clark Control Systems, Inc. TN 63-1148768 MO Witt Galvanizing Cincinnati, Inc. OH 20-5044366 DE Witt Galvanizing Muncie, Inc. IN 20-5044420 DE Witt Galvanizing Plymouth, Inc. IN 20-5044257 DE Schedule 1- Subsidiaries of Registrant AAA Galvanizing Chelsea, Inc. OK 26-2027777 DE AAA Galvanizing Hamilton, Inc. IN 26-2027127 DE AAA Galvanizing Winsted, Inc. MN 26-2027898 DE AAA Galvanizing Peoria, Inc. IL 26-2027580 DE AAA Galvanizing Joliet, Inc. IL 26-2027280 DE AAA Galvanizing Dixon, Inc. IL 26-2027459 DE AZZ Canada Limited 860168426 NP0001 Canada AZZ Blenkhorn & Sawle Limited 859454696 NP0001 Canada AZZ Delaware, Inc. 27-0462691 8/01/09 Dba/ AZZ Galvanizing Pilot Dba/ AZZ Galvanizing Bristol DE DE North American Galvanizing & Coatings Inc. DE North American Galvanizing Company 73-1508795 DE NAGalv – Ohio, Inc. 20-2399637 DE Rogers Galvanizing Company – Kansas City 43-1722128 OK Reinforcing Services, Inc. 73-1450605 OK Premier Coatings, Inc. OK NAGALV – WV, Inc. 26-3645136 DE Dba/ AZZ Galvan Metal Canada AZZ Trading (Shanghai) Co., LTD Dba/ AZZ Galvcast Canada Dba/ AZZ G3 Nova Scotia Canada WV VA Nuclear Logistics, Inc. 75- 9/1/12 TX DE AQUILEX Specialty Repair and Overhaul (See Page 2) 1
Schedule 1 (continued) Subsidiaries of Registrant – AZZ Aquilex Aquilex Specialty Repair and Overhaul LLC 27-1372927 (GA) (DE) Aquilex WSI LLC 74-3124110 (GA) (DE) Aquilex SMS LLC 59-2205287 (FL) (FL) Aquilex Welding Services B.V. No FEIN (Netherlands) Aquilex Welding Services Poland, Sp. z.o.o. No FEIN (Poland) Aquilex WSI do Brasil Ltda. 36-4753418 (Brazil) Aquilex WSI Canada, ULC 98-1087468 (Canada) Aquilex WSI Holding B.V. 98-1087480 (Netherlands) Aquilex WSI Holding Cooperative UA 98-1087476 (Netherlands) SMS Global Inc 55-0820657 (FL) (FL) AZZ incorporated 75-0948250 3/26/56 Arbor-Crowley, Inc. 51-0337454 12/3/91 TX TX TX DE 2 99% 1%