Exhibit 22.1 SUBSIDIARIES OF LSB INDUSTRIES, INC. ------------------------------------ Aerobit Industries, Limited, an Israeli corporation APR Corporation, an Oklahoma corporation CHP Corporation, an Oklahoma corporation Climate Master, Inc., a Delaware corporation Climate Mate, Inc., a Canadian corporation Climatex, Inc., a Texas corporation Clipmate Corporation, an Oklahoma corporation DSN Corporation, an Oklahoma corporation El Dorado Chemical Company, an Oklahoma corporation The Environmental Group, Inc., an Oklahoma corporation Equipos Climatec S.A. de C.V., a Mexican corporation Explosives Equipment Corporation, an Oklahoma corporation Morey Machinery Manufacturing Corporation, an Oklahoma corporation Hercules Energy Mfg. Corporation, an Oklahoma corporation International Bearings, Inc., an Oklahoma corporation International Environmental Corporation, an Oklahoma corporation Koax Corp., an Oklahoma corporation L & S Automotive Products Co., an Oklahoma corporation L & S Automotive Technologies, Inc., an Oklahoma corporation L & S Bearing Co., an Oklahoma corporation LSB Chemical Corp., an Oklahoma corporation LSB Europa Limited, an Oklahoma corporation LSB Extrusion Co., an Oklahoma corporation LSB Financial Corp., an Oklahoma corporation LSB Indonesia Corporation, an Oklahoma corporation LSB International Corp., an Oklahoma corporation LSB South America Corporation, an Oklahoma Corporation LSB Nitrogen Corporation, an Oklahoma corporation Northwest Capital Corporation, an Oklahoma corporation SUBSIDIARIES OF LSB INDUSTRIES, INC. (CONTINUED) ------------------------------------------------ Northwest Energy Enterprises, Inc., an Oklahoma corporation Northwest Financial Corporation, an Oklahoma corporation Prime Financial Corporation, an Oklahoma corporation Rotex Corporation, an Oklahoma corporation Saffron Corporation, an Oklahoma corporation Slurry Australia Pty. Limited, an Australian corporation Summit Machine Tool Inc. Corp., an Oklahoma corporation Summit Machine Tool Manufacturing Corp., an Oklahoma corporation Summit Machine Tool Systems, Inc., an Oklahoma corporation Total Energy Systems, Limited, and Australian corporation Tower IV Corporation, an Oklahoma corporation Tower Land Development Corp., an Oklahoma corporation Tribonetics Corporation, an Oklahoma corporation Universal Tech Corporation, an Oklahoma corporation sec\10k\tk94x22.wpe