LSB Industries, Inc. EXHIBIT 22.1 Subsidiary Listing Revised November 1, 1995 LSB INDUSTRIES, INC. Prime Financial Corporation Tower IV Corporation (formerly known as LSB Leasing Corp.) Northwest Financial Corporation Northwest Capital Corporation Northwest Energy Enterprises, Inc. Tower Land Development Corp. LSB Holdings, Inc. LSB Nitrogen Corporation (formerly known as LSB Import Corp.) LSB South America Corporation LSB-Europa Limited Climate Mate, Inc. Equipos Climatec S.A. de C.V. (97% stock ownership) LSB Indonesia Corporation (formerly known as LSB Corporation) Summit Machine Tool Inc. Corp. Saffron Corporation Explosives Equipment Corp. Clipmate Corporation (20% held by Waldock and Starrett) Equipos Climatec S.A. de C.V. (1% stock ownership) LSB International Corp. Equipos Climatec S.A. de C.V. (1% stock ownership) L&S Automotive Technologies, Inc. (formerly known as L&S Automotive Products Co.) Climatex, Inc. Total Energy Systems Limited Total Energy Systems (NZ) Ltd. LSB Financial Corp. Equipos Climatec S.A. de C.V. (1% stock ownership) Aerobit Industries, Limited (7.98% held by Horovitz and Landsome) Climate Master International Limited The Environmental Group International Limited ROL-BIT Ltd. (5% held by Horovitz) CHEMICAL BUSINESS LSB Chemical Corp. El Dorado Chemical Company Slurry Explosive Corporation DSN Corporation Universal Tech Corporation AUTOMOTIVE PRODUCTS BUSINESS L&S Bearing Co. L&S Automotive Products Co. (formerly known as LSB Bearing Corp.) International Bearings, Inc. LSB Extrusion Co. Rotex Corporation Tribonetics Corporation INDUSTRIAL PRODUCTS BUSINESS Summit Machine Tool Systems, Inc. Summit Machine Tool Manufacturing Corp. Hercules Energy Mfg. Corporation Morey Machinery Manufacturing Corporation (formerly known as Fertilizer Equipment Corp.) (10% held by Jonathon Morey) ENVIRONMENTAL BUSINESS The Environmental Group, Inc. International Environmental Corporation Climate Master, Inc. CHP Corporation Koax Corp. APR Corporation 1\entities\lsb_7.sub