EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT The following list indicates principal subsidiaries and affiliates of CBI by business segment, consisting of Contracting Services, Investments and Industrial Gases. Jurisdiction in which Incorporated Subsidiary or Affiliate or Organized ----------------------- ------------------ CHI BRIDGE HOLDINGS, INC. Delaware Contracting Services CHICAGO BRIDGE & IRON COMPANY Delaware CBI NA-CON, INC. Texas CBI SERVICES, INC. Delaware CBI WALKER, INC. Delaware CHICAGO BRIDGE & IRON COMPANY Illinois ARABIAN CBI TANK MANUFACTURING CO. LTD. Saudi Arabia CBI COMPANY LTD. Delaware CBI CONSTRUCTORS PTY. LTD. Australia CBI CONSTRUCTORS S.A. (PTY.) LTD. South Africa CBI EASTERN ANSTALT Liechtenstein OASIS SUPPLY COMPANY ANSTALT Liechtenstein CBI HOLDINGS U.K. LIMITED United Kingdom CBI CONSTRUCTORS LIMITED United Kingdom CBI (MALAYSIA) SDN. BHD. Malaysia CBI OVERSEAS, INC. Delaware CBI (PHILIPPINES) INC. Philippines CBI VENEZOLANA, S.A. Venezuela HORTON CBI, LIMITED Canada HORTON SERVICES, INC. Canada P.T. CBI INDONESIA * Indonesia TANKSTORE PTE. LTD. * Singapore CHICAGO BRIDGE & IRON COMPANY (DELAWARE) Delaware CHICAGO BRIDGE & IRON TECHNICAL SERVICES COMPANY Delaware COOPERHEAT, INC. New Jersey ERSHIGS, INC. Washington FIBRE MAKING PROCESSES, INC. Illinois FMP/RAUMA COMPANY Alabama INDELCO INC. Delaware MQS INSPECTION, INC. Delaware Investments CBI INVESTMENTS, INC. Delaware FAIRMAC REALTY CORP. Delaware IBIS INVESTMENTS, INC. Delaware PETROTERMINAL DE PANAMA, S.A. * Panama STATIA TERMINALS N.V. Netherlands Antilles STATIA CHANDLERS, N.V. Netherlands Antilles STATIA TERMINALS SOUTHWEST, INC. Texas STATIA TERMINALS, INC. Delaware STATIA POINT TUPPER CORPORATION Delaware STATIA TERMINALS POINT TUPPER, INC. Nova Scotia EXHIBIT 21 (Continued) Jurisdiction in which Incorporated Subsidiary or Affiliate or Organized ----------------------- ------------------ Industrial Gases L C INDUSTRIES, INC. Delaware LIQUID CARBONIC INDUSTRIES CORPORATION Delaware LIQUID CARBONIC CORPORATION Delaware AGRO-FOREST, S.A. * Chile AGRO-LIQUID LIMITADA * Chile ARFIN, S.A. Argentina JUAN B. PEZZA, S.A. Argentina FRIO INDUSTRIAS ARG. S.A. Argentina FRIENDSHIP OXYGEN, LTD. * Guyana GAZ INDUSTRIELS ASSOCIES, S.A. * Haiti GROUPO INDUSTRIAL LIQUID S.A. de C.V. Mexico LIQUID QUIMICA MEXICANA, S.A. Mexico HIELOGAS, S.A. * Uruguay JAMAICA OXYGEN & ACETYLENE, LTD. * Jamaica KARBOGAZ, A.S. * Turkey KOREA LIQUID CARBONIC COMPANY, LTD. * Korea LIQUID CARBONIC ARGENTINA S.A.I.C. Argentina CARBONATOS ANDINOS, S.A. Argentina CBI ARGENTINA, S.A. Argentina NOVADATA PARAGUAY, S.A. Paraguay LIQUID CARBONIC BARBADOS, LTD. * Barbados LIQUID CARBONIC BELIZE, LTD. Belize LIQUID CARBONIC DE BOLIVIA, S.A. Bolivia LIQUID CARBONIC DE CHILE, S.A.I.C. Chile LIQUID CARBONIC DE ESPANA, S.A. Spain LIQUID CARBONIC DE MEXICO, S.A. de C.V. Mexico PRODUCTS ESPECIALES QUIMICOS, S.A. Mexico LIQUID CARBONIC DEL PERU, S.A. Peru LIQUID CARBONIC ENGINEERING SERVICES * Trinidad LIQUID CARBONIC, INC. Canada BURROWS MEDICAL OXYGEN, LTD. Canada LIQUID CARBONIC INDUSTRIAS, S.A. Brazil CARBORIO INDUSTRIA E. COMERCIO, LTA. Brazil LIQUID QUIMICA, S.A. Brazil QUIMICA INDUSTRIAL BARRA DO PIRAI S.A. Brazil PULVER DO NORDESTE LTDA. Brazil EMPRESA DE MINERACAO MARUIM LTDA. Brazil LIQUID CARBONIC POLSKA, SP.ZO.O Poland LIQUID CARBONIC THAILAND COMPANY, LTD. Thailand LIQUID CARBONIC VENEZOLANA, S.A. Venezuela EQUIPOS LIQUID, S.A. Venezuela LIQUIDOX VENEZOLANA, S.A. Venezuela LIQUID CARBONIC WEST INDIES * Trinidad INDUSTRIAL GASES, LTD. * Trinidad LIQUID CARBONICO COLOMBIANA, S.A. Colombia MITSUI TOATSU LIQUID CARBONIC, INC. * Japan ORGANOQUIMICA, S.A. Colombia WALL CHEMICALS, INC. Illinois LIQUID CARBONIC OF OKLAHOMA, INC. Oklahoma OKLAHOMA CO2 PARTNERSHIP * Oklahoma * These companies are accounted for in the financial statements on the equity method. CBI has a number of subsidiaries and affiliates not listed above. Those not listed, when considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary.