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Exhibit 21
Airgas, Inc. and Subsidiaries
Corporation Name Domicile
Airgas- Gulf States, Inc. DE
Airgas- Intermountain, Inc. DE
Airgas- Michigan, Inc. DE
Airgas- Mid America, Inc. DE
Airgas- Mid Atlantic, Inc. DE
Airgas- Mid South, Inc. DE
Airgas- Mountain States, Inc. DE
Airgas- Nor Pac, Inc. DE
Airgas- North Central, Inc. DE
Airgas- Northeast, Inc. DE
Airgas- Northern California & Nevada, Inc. DE
Airgas- South, Inc. DE
Airgas- Southwest, Inc. DE
Airgas- West, Inc. CA
Airgas Canada, Inc. Canada
Airgas Carbonic Enterprises, Inc. DE
Airgas Carbonic, Inc. DE
Airgas Data,LLC. DE
Airgas Direct Industrial Vessel, LLC. DE
Airgas Direct Industrial, Inc. DE
Airgas International, Inc. VI
Airgas Lyons, Inc. DE
Airgas Management (Indian) Pvt. Ltd. India
Airgas New England Real Estate, Inc. DE
Airgas Realty, Inc. DE
Airgas Safety, Inc. DE
Airgas Specialty Gases, Inc. TX
AMI Equipment, LLC. PA
ATNL, Inc. DE
Cylinder Leasing Corp. DE
FORAIR, Inc. DE
Forgas, Inc. DE
JWS Airgas, Inc. NJ
Mauritius Industrial Gases, Inc. Mauritius
NEJD Pipeline Co., Inc. DE
Nitrous Oxide Corp. DE
Red-D-Arc, Inc. NV
Red-D-Arc Limited Canada
RSCI,Inc. DE
Rutland Tool & Supply Co., Inc. CA
