EXHIBIT 21 OGDEN CORPORATION - U.S. SUBSIDIARIES LIST (See Attachment A for foreign subsidiaries list) Domestic Co. Code/ Company % Ownership State E.I.N. - ------- ----------- ----- ------ Ogden Corporation ...................................................................................DE............13-5549268 Ogden Energy Group, Inc. (f/k/a Ogden Projects, Inc.)................................100.........DE............13-3213657 (See Attachment B for Ogden Energy Group, Inc. - U.S. and foreign subsidiaries list) Ogden Financial Services, Inc........................................................100.........DE............13-3057250 B D C Liquidating Corp............................................................100.........DE............13-2757633 Bouldin Development Corp.......................................................100.........CA............94-1695641 Greenway Insurance Company of Vermont.............................................100.........VT............13-3167991 International Terminal Operating Co., Inc......................................... 50.........DE ...........13-5628741 OFS Equity of Delaware, Inc.......................................................100.........DE............13-3495890 OFS Equity of Alexandria/Arlington, Inc........................................100.........VA............13-3495889 OFS Equity of Indianapolis, Inc................................................100.........IN............13-3495887 OFS Equity of Stanislaus, Inc..................................................100.........CA............13-3495880 Ogden Allied Maintenance Securities, Inc.......................................100.........DE............004*/51-0102045 Denver Fuel Facilities Corporation........................................100.........CO............105*/13-2694896 Kansas City International Fueling Facilities Corporation..................100.........MO............080*/13-2604290 LaGuardia Fuel Facilities Corporation.....................................100.........NY............100*/13-2660143 Lambert Field Fueling Facilities Corporation..............................100.........DE............057*/13-6116279 Love Field Fueling Facilities Corporation.................................100.........TX............058*/13-6116341 Newark Automotive Fuel Facilities Corporation.............................100.........NJ............114*/13-2806865 Philadelphia Fuel Facilities Corporation..................................100.........PA............097*/13-2671427 Ogden Management Services, Inc.......................................................100.........DE............13-2918484 OFS Equity of Babylon, Inc........................................................100.........NY............13-3543094 OFS Equity of Huntington, Inc.....................................................100.........NY............13-3543092 Ogden Services Corporation...........................................................100.........DE............141*/13-3058273 Ogden Allied Abatement & Decontamination Service, Inc.............................100.........NY............144*/13-3429112 Ogden Allied Maintenance Corporation..............................................100.........NY............010*/13-65939 Datacom Custom Manufacturing, Inc..............................................100.........NY............086*/13-2629642 (f/k/a Atlantic Design Company, Inc.) Lenzar Electro-Optics, Inc.....................................................100.........DE............175/59-3063752 Ogden Allied Payroll Services, Inc.............................................100.........NY............063*/13-6160158 Ogden Aviation Services, Inc. .................................................100.........DE............015/13-3846270 Ogden Aviation Distributing Corp. ........................................100.........NY............046*/13-1835320 Ogden Aviation Fueling Company, Inc.......................................100.........DE............012*/13-5564521 Ogden Aviation Fueling Company of Atlanta, Inc............................100.........GA............129*/13-3054674 Ogden Aviation Fueling Company of Houston, Inc............................100.........TX............068*/13-2557861 Ogden Aviation Fueling Company of St. Louis, Inc..........................100.........DE............025*/13-5665586 Ogden Aviation Fueling Company of Texas, Inc..............................100.........TX............024*/13-5661328 Ogden Aviation Fueling Company of Virginia, Inc...........................100.........DE............038*/13-1954027 Ogden Aviation Security Services, Inc.....................................100.........DE............013/13-3876173 Ogden Aviation Service Company of Colorado, Inc...........................100.........CO............104*/13-2694899 Ogden Aviation Service Company of Hawaii, Inc.............................100.........HI............107*/13-2706452 Ogden Aviation Service Company of Kansas City, Inc........................100.........MO............118*/13-2942892 Ogden Aviation Service Company of New Jersey, Inc.........................100.........NJ............003*/13-5565924 Ogden Aviation Service Company of New York, Inc...........................100.........NY............007*/13-5565925 Ogden Ground Services, Inc.............................................100.........DE............146*/23-1707864 ARA Sunset Airport Systems, Inc.....................................100.........CA............152*/95-2959114 Ogden Aviation Service Company of Pennsylvania, Inc.......................100.........PA............018*/13-2749962 Ogden Aviation Service Company of Texas, Inc..............................100.........DE............019*/13-5649342 Ogden Aviation Service Company of Washington, Inc.........................100.........DE............011*/13-5581082 Ogden Aviation Service International Corporation..........................100.........NY............006*/13-5565926 Ogden Aviation, Inc....................................................100.........DE............177/13-3634105 Ogden Aviation Security Services of Indiana, Inc.......................100.........IN............163*/13-3606125 Ogden Aviation Terminal Services, Inc.....................................100.........MA............005*/13-5565923 Ogden New York Ground Services, Inc.......................................100.........DE............13-3889795 Domestic Co. Code/ Company % Ownership State E.I.N. - ------- ----------- ----- ------ Ogden Corporation (cont'd) Ogden Services Corporation (cont'd) Ogden Allied Maintenance Corporation (cont'd) Ogden Aviation Services, Inc. (cont'd) Ogden New York Services, Inc..............................................100.........NY............020/13-5623889 Ogden Pipeline Services Corporation.......................................100.........DE............125*/13-2949046 Ogden Cisco, Inc...............................................................100.........DE............157*/13-3670141 Ogden Communications, Inc......................................................100.........DE............130/13-3793364 Ogden Facility Holdings, Inc...................................................100.........DE............13-3852102 Ogden Facility Services, Inc..............................................100.........DE............13-3773192 Ogden Allied Building & Airport Services Inc...........................100.........DE............017*/13-5618372 Ogden Allied Building Service Corporation..............................100.........DE............121*/13-2928817 Ogden Allied Maintenance Company of Hawaii, Inc........................100.........HI............090*/99-0119711 Ogden Allied Maintenance Corporation of New England....................100.........MA............009/04-2453238 Ogden Allied Maintenance Corporation of Pennsylvania, Inc..............100.........DE............014*/13-5611594 Ogden Allied Maintenance Corporation of Texas..........................100.........TX............042*/13-1987767 Ogden Allied Service Agency Corporation................................100.........DE............016*/13-5616071 Ogden Allied Window Cleaning Company, Inc..............................100.........NY............008*/13-5565941 Ogden Hawaii Company, Inc..............................................100.........HI............062*/99-0086682 Ogden Industrial Services, Inc.........................................100.........DE............143*/13-3330336 Ogden Plant Maintenance Company, Inc...................................100.........NJ............088*/13-2640359 Ogden Plant Maintenance Company of Missouri............................100.........MO............069*/13-2556007 Ogden Plant Maintenance Company of North Carolina......................100.........NC............113*/13-2761092 Ogden Asia Pacific Services, Inc..................................................100.........DE............134/13-3793247 (See Attachment A for foreign subsidiaries) Ogden Central and South America, Inc..............................................100.........DE............135/13-3793248 (See Attachment A for foreign subsidiaries) OCSA Financing Services, Inc...................................................100.........DE............PENDING Ogden Entertainment, Inc..........................................................100.........DE............001/11-2145117 Doggie Diner, Inc..............................................................100.........DE............003/92-1228666 I & S Consultants, Inc.........................................................100.........IL............/36-3241812 Jazzland, Inc..................................................................100.........DE............52-2096960 The Metropolitan Entertainment Co., Inc........................................ 50.........NJ............22-1968974 Offshore Food Service, Inc.....................................................100.........LA............027/72-0535141 Gulf Coast Catering Company, Inc..........................................100.........LA............028/13-3537164 Ogden-MEI, L.L.C............................................................... 50.........DE............13-4022873 Ogden American Food Services, Inc..............................................100.........OH............008/34-4197320 Ogden Attractions, Inc.........................................................100.........DE............/13-3934857 Ogden-Burtco Services, Inc.....................................................100.........WA............042/92-0022939 Alpine Food Products, Inc.................................................100.........WA............041/91-0760148 Ogden Facility Management of Alaska, Inc..................................100.........AK............058/92-0097503 Ogden Entertainment of Florida, Inc............................................100.........DE............ /13-3877904 Ogden Event Security Services, Inc.............................................100.........NY............011/13-3428320 Ogden Facility Management Corporation..........................................100.........NY............098/13-3282969 Ogden Facility Management Corporation of Anaheim...............................100.........CA............060/13-3526194 Ogden Facility Management Corporation of Huntington............................100.........WV............13-3852104 Ogden Facility Management Corporation of Iowa..................................100.........IA............007/13-3444248 Ogden Facility Management Corporation of Pensacola.............................100.........FL............006/13-3245048 Ogden Facility Management Corporation of West Virginia.........................100.........WV............55-0459949 Ogden Film and Theatre, Inc....................................................100.........DE............/13-3934858 Arizona Big Frames Theatres, L.L.C........................................ 50.........AZ............TBA Ogden Food Service Corporation.................................................100.........DE............023/23-0404985 Ogden Confection Corporation..............................................100.........DE............039/36-2392940 Ogden Food Service Corporation of Indiana...................................... 40.........IN............048/13-2723781 Domestic Co. Code/ Company % Ownership State E.I.N. - ------- ----------- ----- ------ Ogden Corporation (cont'd) Ogden Services Corporation (cont'd) Ogden Entertainment, Inc. (cont'd) Ogden Food Service Corporation of Kansas.......................................100.........KS............0032/13-3703705 Ogden Food Service Corporation of Milwaukee....................................100.........WI............063/13-2783130 Ogden Food Service Corporation of Texas........................................100.........TX............092/74-1310443 Ogden Food Service Corporation of Wisconsin....................................100.........WI............056/39-0912345 Ogden Leisure, Inc.............................................................100.........DE............54-0848368 Ogden Fairmount, Inc......................................................100.........DE............021/37-0912053 Ogden Fairmount Racing, Inc............................................100.........DE............PENDING Shoreline Operating Company, Inc. 100.........CA............77-0484063 Ogden Firehole Entertainment Corp.................................................100.........DE............/13-3516164 Ogden International Europe Inc. ..................................................100.........DE............164/13-88536 (See Attachment A for foreign subsidiaries) Ogden Resource Recovery Support Services, Inc.....................................100.........DE............149*/13-3560729 Ogden Plant Services of New Jersey, Inc........................................100.........NJ............176/13-3597547 Ogden Technology Services Corporation.............................................100.........DE............13-3977971 Applied Data Technology, Inc...................................................100.........CA............33-0297326 ADT Global Services, Inc. (formerly Ogden Range Services, Inc.)................100.........DE............169/13-3712961 Logistics Operations, Inc.................................................100.........VA............164/13-3977972 Ogden Support Services, Inc....................................................100.........DE............165*/13-3688521 Ogden Water Treatment Support Services, Inc.......................................100.........DE............199*/13-3807441 * For payroll/personnel, add 200 to codes of Maintenance companies only. ATTACHMENT A OGDEN CORPORATION - FOREIGN SUBSIDIARIES LIST Domestic Co. Code/ Company % Ownership State/Country E.I.N. - ------- ----------- ------------- ------ Ogden Corporation .......................................................................................DE/U.S.A. Aeropuertos Argentina 2000 S.A........................................................28.............Argentina Compania de Desarrollo Aeropuerto Eldorado, S.A. (CODAD, S.A.)........................19.............Columbia Ogden Services Corporation...........................................................100.............DE/U.S.A..........141 Ogden Allied Maintenance Corporation..............................................100.............NY/U.S.A. Allied Aviation Service Company of Newfoundland, Ltd...........................100.............Canada............022 Atlantic Design Company, Inc...................................................100.............NY/U.S.A. Datacom de Mexico, S.A. de C.V............................................100.............Mexico Ogden Aviation Services, Inc...................................................100.............DE/U.S.A. Ogden Aviation Service Company of New York, Inc...........................100.............NY/U.S.A..........007 Ogden Ground Services, Inc.............................................100.............DE/U.S.A..........146 Ogden/Air Aruba Ground Services N.V. ............................... 49.............Aruba Ogden Facility Holdings, Inc...................................................100.............DE/U.S.A. Ogden Facility Services, Inc..............................................100.............DE/U.S.A. Ogden Servicios de Seguridad, S.A......................................100.............Costa Rica Ogden Services of Canada Inc...................................................100.............Canada............054 Cafas Inc.................................................................100.............Canada............028 Airconsol Aviation Services Ltd.- Les Services D'Aviation Airconsol Limitee..............................100.............Canada............115 Ogden Ground Services (Canada) Ltd. ................................100.............Canada............ Aircraft Services Limited.......................................100.............Canada............189 Consolidated Aviation Fueling of Toronto Limited..........................100.............Ontario...........052 Consolidated Aviation Services of Alberta Limited.........................100.............Canada............119 Ogden Allied Security Services Inc.-Services de Securite Ogden Allied Inc.100.............Canada............190 Ogden Asia Pacific Services, Inc..................................................100.............DE/U.S.A. HO/Ogden Investimentos e Transportes, Limitada................................. 51.............Macau IEA of Japan Company Ltd....................................................... 50.............Japan MASC/Ogden Aviation Services (Macau) Limited................................... 29.............Macau Ogden Asia Pacific Holding Limited.............................................100.............British Virgin Islands. Ogden Aviation (Asia Pacific) Limited....................................90.1.............British Virgin Islands Ogden Aviation (Hong Kong) Limited.....................................100.............Hong Kong Ogden Aviation Services (NZ) Limited...........................................100.............New Zealand.......156 Ogden International Facilities Corporation (Asia Pacific) Pty Ltd..............100.............Australia.........172 Ogden International Facilities Corporation (Australia) Pty Ltd............ 50.............Australia International Facilities Corporation (Cairns) Pty Ltd.....................100.............Australia International Facilities Corporation (NZ) Pty Ltd.........................100.............New Zealand.......156 International Facility Corporation (Newcastle) Ltd........................100 International Facility Corporation (Hong Kong) Pty Ltd.................... .............Hong Kong Ogden Aviation Services Limited...................................................100.............U.K.186/2176414259610 Ogden Aviation Engineering Limited.............................................100.............U.K...............188 Ogden Cargo Limited............................................................100.............U.K. Air Cargo Enterprises Limited............................................. 50.............U.K. SkyCare Limited...........................................................100.............U.K. Ogden Entertainment Services (UK) Ltd..........................................100.............U.K...............015 Ogden Ice Hockey Limited..................................................100.............U.K. Ogden Central and South America, Inc..............................................100.............DE/U.S.A. Americana Entertainment N.V.................................................... 80.............Aruba Ogden Argentina, S.A...........................................................100.............Argentina Ogden Aviation Services (Chile) Ltda........................................... 99.............Chile.............158 (1% held by Ogden Asia Pacific Services Inc.) Aviation Services Leader S.A.............................................. 80.............Chile.............185 Ogden Aviation Services Dominicana, S.A........................................ 99.............Dominican Rep. Ogden Aviation Services (Panama) Corp.......................................... 85.............Panama............171 Domestic Co. Code/ Company % Ownership State/Country E.I.N. - ------- ----------- ------------- ------ Ogden Corporation (cont'd) Ogden Services Corporation (cont'd) Ogden Central and South America, Inc. (cont'd.) Ogden Aviation Services (Venezuela), S.A. .....................................100.............Venezuela.........168 Ogden Ground Services Caracas, C.A........................................100.............Venezuela.........182 Ogden do Brazil Participacoes S/C Ltda.........................................100 ............Brazil............174 Ogden - Servicos de Atendimento Aeroterrestre Ltda. ("SERVAIR")...........100.............Brazil Ogden Alimentos Comercio e Servicoes Ltda.................................100 ............Brazil Ogden Ground Services, Inc. (St. Thomas).......................................100.............Virgin Islands....155 Ogden Ground Services de Mexico, S.A. (formerly "SEITSA").....................94.9.............Mexico............150 Ogden Peru, S.R.L..............................................................100.............Peru Ogden & Talma Aviation Services of Peru, S.A. .............................50.............Peru Ogden Saint Maarten Ground Services N.V........................................100.............Netherlands Antilles Ogden SEITSA Leasing, S.A. de C.V.............................................94.9.............Mexico............183 Compania Legir S.A.............................................................100.............100...............Uruguay Irodel, S.A....................................................................100.............100...............Uruguay Menezul, S.A...................................................................100.............100...............Uruguay Ogden Entertainment, Inc..........................................................100.............DE/U.S.A. Ogden Entertainment of Cape Town (Proprietary) Limited......................... 78.............South Africa Ogden Entertainment Services (Canada) Inc. - Services de Divertissements Ogden (Canada) Inc.............................100.............Canada............012 Ogden Gaming of Ontario, Inc..............................................100.............Canada Ogden Palladium Services (Canada) Inc.....................................100.............Canada Ogden Entertainment Services de Mexico, S.A. de C.V............................100.............Mexico Servicios de Alimentos Bebidas Especializados, S.A. de CV......................100.............Mexico Ogden International Europe Inc....................................................100.............DE/U.S.A..........164 Ogden Atlantic Design (Europe) Limited........................................100.............Ireland Ogden Holdings B.V............................................................100.............Netherlands.......166 Compania General de Sondeos CGS, S.A......................................100.............Spain.............191 Czech-Ogden Airhandling s.r.o............................................. 50.............Czech. ...........162 Ogden Aviation (Schiphol) B.V.............................................100.............Netherlands.......161 Ogden Cargo B.V........................................................100.............Netherlands Ogden Spain S.A...........................................................100.............Spain159/A07568876 Ogden Entertainment Services Portugal, S.A................................100.............Portugal..........160 Ogden Entertainment Services Spain, SA....................................100.............Spain Estadio Olimpico de Sevilla, S.A......................................15.9.............Spain Ogden Holdings (Deutschland) GmbH.........................................100.............Germany...........192 Ogden Rhino Management Company Limited....................................100.............U.K............... Graecor Beteiligungsverwaltungs GmbH......................................100.............Austria Ogden Allied Services GmbH.............................................100.............Germany...........138 Ogden Aviation Services GmbH & Co. KG..................................100.............Germany...........193 Ogden Entertainment (Oberhausen) GmbH..................................100.............Germany...........194 Ogden Tegel Verwaltungs GmbH (formerly DAN AIR Services GmbH)..........100.............Germany...........195 Tegel Aircraft Handling GmbH........................................100.............Germany...........196 Verwaltung Ogden Aviation Services GmbH ..............................100.............Germany 197 Ogden Power Agua y Energia Torre Pacheco, S.A............................83.3.............Spain Ogden Romanian Aviation Services, S.A..................................... 50.............Romania Parque Isla Magica, S.A.................................................26.12.............Spain Sezai Turkes Feyzi Akkaya Ogden Hizmet Ve Isletmecilik A.S. ("STFA Ogden Maintenance and Service Co.")............................. 50.............Turkey ATTACHMENT B OGDEN ENERGY GROUP, INC. - U.S. AND FOREIGN SUBSIDIARIES LIST PERCENT COMPANY OWNERSHIP INCORP. E.I.N. - ------- --------- ------- ------ Ogden Energy Group, Inc........................................................100...................Delaware..... 13-3939460 Ogden Energy Group do Brasil Ltda...........................................100(f)................Brazil.......02.310.557/0001-54 Ogden Projects, Inc.........................................................100...................Delaware.......13-3213657 Ogden Energy, Inc...........................................................100...................Delaware.......22-3405522 Ogden Madhya Pradesh Operating Private Limited...........................100...................India.......... NA Ogden Philippines Operating, Inc.........................................100...................Cayman Islands. NA . . . . . . .Ogden Energy West, Inc............................................100...................Delaware....... NA . . . . . . . . . Ogden Energy Sao Jeronimo, Inc...............................100...................Delaware....... NA . . . . . . . . . . . . .Mecaril S.A...........................................100...................Uruguay........ NA . . . . . . . . . . . . Cladox International S.A...............................100...................Uruguay........ NA . . . ............Ogden Power Corporation......................................100...................Delaware.......54-1732981 . . ......Geothermal, Inc...................................................100...................Virginia.......54-1504703 Imperial Power Services, Inc......................................100...................California.....95-3677245 New Martinsville Hydro-Operations Corporation.....................100...................West Virginia..31-1275468 Ogden Brandywine Operations, Inc..................................100...................Delaware.......54-1740297 Ogden Geothermal Operations, Inc..................................100...................Delaware.......54-1607228 Ogden Hydro Operations, Inc.......................................100...................Tennessee......52-1661862 Ogden Oil & Gas, Inc..............................................100...................Delaware.......54-1734589 Ogden Power Equity Corporation....................................100...................Delaware.......54-1504746 Catalyst New Martinsville Hydroelectric Corporation...........100...................Delaware.......13-3372123 ERC Energy, Inc...............................................100...................Delaware.......54-1523295 Ogden Heber Field Energy, Inc.................................100...................Delaware.......54-1611569 Ogden Hydro Energy, Inc.......................................100...................Delaware.......54-1606911 Ogden Power International Holdings, Inc..........................100...................Delaware.......54-1742808 Edison Bataan Cogeneration Corporation........................100...................Philippine..... NA Hidro Operaciones Don Pedro S.A...............................100...................Costa Rica..... NA Island Power Corporation...................................... 40(d)................Philippine..... NA Hungarian-American Geothermal Limited Liability Company.......37.5(g)...............Hungary........ NA LINASA Cogeneracion y Asociados, S.L.......................... 50(e) .............Spain..........B30556484 Ogden Energy India Investments Ltd............................100...................Mauritius...... NA . . . . . .Ogden Chinese Investments Ltd........................100...................Mauritius......98-0183946 . . . . . . . . Ogden Energy China (Alpha) Ltd..................100...................Mauritius......98-0183947 . . . . . . . . Ogden Energy China (Beta) Ltd...................100...................Mauritius......98-0183949 . . . . . . . . Ogden Energy China (Delta) Ltd..................100...................Mauritius......98-0183951 . . . . . . . . Ogden Energy China (Gamma) Ltd..................100...................Mauritius......98-0183952 . . .Ogden Energy of Bongaigaon Private Limited..............100...................India.......... N/A . . ........Ogden Energy India (CBM) Limited........................100...................Mauritius...... NA . . . . . .Ogden Taiwan Investments Limited.....................100...................Mauritius...... NA Ogden Energy Philippine Holdings, Inc.........................100...................Philippines.... NA OPI Quezon, Inc...............................................100...................Delaware.......13-3670144 . .Ogden Power Development - Cayman, Inc...................100...................Cayman Islands. NA Quezon Power, Inc. (new dvlpmnt co.).................... 27.5(b)..............Cayman Islands. NA (f/k/a Ogden Quezon Power, Inc.- old dvlpmnt. co.) . . . Ogden Power Development, Inc...............................100...................Delaware.......13-3662254 . .Ogden Power Development of Bolivia, Inc.................100...................Delaware.......13-3852464 OPDB, Ltd..............................................100...................Cayman Islands. NA . . . Ogden Energy Asia Pacific Limited..........................100(a)................Hong Kong...... NA (f/k/a Ogden Projects Asia Pacific Limited) Ogden Power Pacific, Inc. (f/k/a Pacific Energy).................100...................California.....95-3845189 Burney Mountain Power.......................................100...................California.....94-3149256 Mammoth Geothermal Company..................................100...................California.....95-4311279 Mammoth Power Company.......................................100...................California.....95-4484066 Mt. Lassen Power............................................100...................California.....94-3149255 Ogden Power Plant Operations................................100...................California.....95-4497795 (f/k/a Pacific Power Plant Operations) Pacific Energy Resources Incorporated.......................100...................California.....95-3499702 Pacific Geothermal Company..................................100...................California.....95-3950189 Pacific Hydropower Company..................................100...................California.....95-3734859 Pacific Oroville Power, Inc.................................100...................California.....95-3987027 Page 1 OEG Foreign subsidiaries are highlighted in bold. PERCENT COMPANY OWNERSHIP INCORP. E.I.N. - ------- --------- ------- ------ Ogden Energy Group, Inc. (cont.) Ogden Projects, Inc. (cont.) Pacific Penobscot Power Company.............................100...................Maine..........85-4055394 Pacific Recovery Corporation................................100...................California.....95-4080088 Pacific Wood Fuels Company..................................100...................California.....95-4046356 Pacific Wood Services Company...............................100...................California.....95-4497794 Penstock Power Company......................................100...................California.....95-4250440 8309 Tujunga Avenue Corp....................................100...................California.....95-4130759 Ogden Rosemary Operations, Inc...................................100...................Delaware.......22-3433655 Ogden SIGC Energy, Inc...........................................100...................Delaware.......54-1742810 AMOR 14 Corporation.........................................100...................Delaware.......88-0243401 Ogden SIGC Energy II, Inc........................................100...................California.....54-1742553 Ogden SIGC Geothermal Operations, Inc............................100...................California.....54-1645557 Three Mountain Power, LLC........................................100...................Delawaare......22-3604711 Ogden Environmental and Energy Services Co., Inc............................100...................Delaware.......52-1594168 Analytical Technologies, Inc.............................................100...................Delaware.......95-3705905 G A Technical Services, Inc..........................................100...................Tennessee......62-1238177 Multiple Dynamics Corporation............................................100...................Michigan.......38-2278155 Ogden Environmental and Energy Services Co., Inc. of Ohio................100...................Ohio...........31-1357919 Ogden Environmental and Engineering Services Co., Inc....................100...................North Carolina.56-0840101 Ogden Environmental Federal Services Co., Inc............................100...................Delaware.......54-1694984 (f/k/a Ogden Environmental Services Alaska Co., Inc.) Ogden Engineering and Construction, Inc..................................100...................Florida........59-2661991 (f/k/a Ogden Remediation Services Co., Inc.) Ogden umwelt und energie systeme GmbH....................................100...................Germany........ NA IEAL energie & umwelt consult, GmbH..................................100...................Germany........ NA Olmec Insurance, Ltd.....................................................100...................Bermuda ....... NA Ogden Martin Operations of Union, LLC.......................................100(i)................New Jersey.....22-3596572 Ogden Waste to Energy, Inc..................................................100...................Delaware ......13-3871973 Ogden Energy Resource Corp...............................................100...................Delaware.......63-0837475 Ogden Martin Systems, Inc................................................100...................Delaware.......13-3162629 Ogden Engineering Services, Inc......................................100...................New Jersey.....13-3284896 Ogden Marion Land Corp...............................................100...................Oregon.........13-3369730 Ogden Martin Systems of Alexandria/Arlington, Inc....................100...................Virginia.......58-1594213 OMS Equity of Alexandria/Arlington, Inc..............................100...................Virginia.......13-3389573 Ogden Martin Systems of Babylon, Inc.................................100...................New York.......13-3246689 Ogden Martin Systems of Bristol, Inc.................................100...................Connecticut....13-3246723 Ogden Martin Systems of Clark, Inc...................................100...................Ohio...........11-3140377 OMSC One, Inc........................................................100...................Delaware.......13-3690804 OMSC Two, Inc........................................................100...................Delaware.......13-3690801 OMSC Three, Inc......................................................100...................Delaware.......13-3690806 OMSC Four, Inc.......................................................100...................Delaware.......13-3690807 Ogden Martin Systems of Fairfax, Inc.................................100...................Virginia.......13-3410434 Ogden Martin Systems of Haverhill, Inc...............................100...................Massachusetts..13-3375647 Haverhill Power, Inc.............................................100...................Massachusetts..04-2908628 LMI, Inc.........................................................100...................Massachusetts..04-2943947 Ogden Omega Lease, Inc...........................................100...................Delaware.......13-3028120 Ogden Haverhill Properties, Inc......................................100...................Massachusetts..13-3382130 Ogden Martin Systems of Hillsborough, Inc............................100...................Florida........13-3228206 Ogden Martin Systems of Huntington, Inc..............................100...................New York.......13-3394817 Ogden Martin Systems of Huntington Resource Recovery One Corp........100...................Delaware.......06-1260495 Ogden Martin Systems of Huntington Resource Recovery Two Corp........100...................Delaware.......06-1260497 Ogden Martin Systems of Huntington Resource Recovery Three Corp......100...................Delaware.......06-1260498 Ogden Martin Systems of Huntington Resource Recovery Four Corp.......100...................Delaware.......06-1260489 Ogden Martin Systems of Huntington Resource Recovery Five Corp.......100...................Delaware.......06-1260492 Ogden Martin Systems of Huntington Resource Recovery Six Corp........100...................Delaware.......13-3629151 Ogden Martin Systems of Huntington Resource Recovery Seven Corp......100...................Delaware.......13-3631168 Ogden Martin Systems of Huntsville, Inc..............................100...................Alabama........13-3456026 Ogden Martin Systems of Indianapolis, Inc............................100...................Indiana........13-3977970 Page 2 OEG Foreign subsidiaries are highlighted in bold. PERCENT COMPANY OWNERSHIP INCORP. E.I.N. - ------- --------- ------- ------ Ogden Energy Group, Inc. (cont.) Ogden Projects, Inc. (cont.) Ogden Martin Systems of Kent, Inc.....................................100..................Michigan........13-3369158 NRG/Recovery Group, Inc. (f/k/a Ogden Martin Systems of Lake, Inc.)...100..................Florida.........13-3482491 Ogden Martin Systems of Lancaster, Inc................................100..................Pennsylvania....13-3408215 Ogden Martin Systems of Lawrence, Inc.................................100..................Massachusetts...13-3714674 Ogden Martin Systems of Lee, Inc......................................100..................Florida.........13-3557826 Ogden Martin Systems of Long Island, Inc..............................100..................Delaware........11-3081090 Ogden Martin Systems of Marion, Inc...................................100..................Oregon..........91-1246805 Ogden Martin Systems of Mercer, Inc...................................100..................New Jersey......13-3431734 Ogden Martin Systems of Montgomery, Inc...............................100..................Maryland........13-3547268 Ogden Martin Systems of Onondaga, Inc.................................100..................New York........13-3528458 Ogden Martin Systems of Onondaga Two Corp.............................100..................Delaware........13-3690841 Ogden Martin Systems of Onondaga Three Corp...........................100..................Delaware........13-3690843 Ogden Martin Systems of Onondaga Four Corp............................100..................Delaware........13-3690838 Ogden Martin Systems of Onondaga Five Corp............................100..................Delaware........13-3684127 OMS Onondaga Operations, Inc..........................................100..................Delaware........13-3714674 Ogden Martin Systems of Pasco, Inc....................................100..................Florida.........13-3447536 Ogden Martin Systems of San Bernardino, Inc...........................100..................California......13-3397879 Ogden Martin Systems of Stanislaus, Inc...............................100..................California......13-3315310 OMS Equity of Stanislaus, Inc.........................................100..................California......13-3436232 Ogden Martin Systems of Tampa, Inc....................................100..................Florida.........22-3603324 Ogden Martin Systems of Tulsa, Inc....................................100..................Oklahoma........13-3203172 Ogden Martin Systems of Union, Inc....................................100..................New Jersey......13-3323867 Ogden Waste to Energy, Ltd. (formerly Ogden Martin Systems, Ltd)......100..................Ontario......... NA Ogden Martin Systems of Nova Scotia, Ltd.........................100..................Nova Scotia..... NA Ogden Projects of Haverhill, Inc.........................................100..................Massachusetts...13-3522006 Ogden Wallingford Associates, Inc........................................100..................Connecticut.....13-3494166 Ogden Waste to Energy Asia Investments...................................100..................Mauritius....... NA Ogden Waste to Energy of Italy, Inc......................................100..................Delaware........22-3564096 Ambiente 2000 S.r.l...................................................40(h)................Italy........... NA Ogden Waste Treatment Services, Inc......................................100..................Delaware........13-3362679 Ogden Waste Solutions, Inc............................................100..................Delaware........22-3557169 Ogden Waste Treatment Services USA, Inc..................................100..................Delaware........13-3940678 OPW Associates, Inc......................................................100..................Connecticut.....13-3487064 OPWH, Inc................................................................100..................Delaware........13-3592054 RRS Holdings Inc.........................................................100..................Delaware........13-3697005 Michigan Waste Energy, Inc............................................100..................Delaware........06-1331600 Oahu Waste Energy Recovery, Inc.......................................100..................California......95-2638052 Ogden Projects of Hawaii, Inc.........................................100..................Hawaii..........99-0230284 Resource Recovery Systems of Connecticut, Inc.........................100..................Connecticut.....13-3696927 OPI Carmona Limited......................................................100..................Cayman Islands.. NA OPI Carmona One Limited..................................................100..................Cayman Islands.. NA Ogden Energy Engineering, Inc. (f/k/a Ogden Projects Americas, Inc.)........100..................Delaware........13-3795624 Ogden Projects Holdings, Inc................................................100..................Delaware........13-3640508 Ogden Water Holdings, Inc...................................................100..................Delaware........13-3779130 Ogden Water Systems, Inc.................................................100..................Delaware........13-3756577 Ogden Yorkshire Acquisition, Inc......................................100..................Delaware........13-3806665 Cunningham Environmental Support, Inc............................100..................New York........16-1386872 Ogden Yorkshire Water of Bessemer, Inc................................100..................Delaware........22-3405521 Ogden Yorkshire Water of Canada, Ltd..................................100..................Ontario......... NA Ogden Yorkshire Water of Taunton, Inc.................................100..................Massachusetts...22-3481731 Ogden Water Systems of Canada, Ltd. (f/k/a Ogden Projects of Hamilton, Ltd.)100..................Ontario......... NA Yorkshire USA, Inc..........................................................100(c) .............Delaware........51-0354748 Page 3 OEG Foreign subsidiaries are highlighted in bold. (a) Ogden Energy Asia Pacific Limited's stock is owned 50% by Ogden Projects, Inc. and 50% by Ogden Power Development, Inc. (b) Quezon Power, Inc (new development company) is owned 27.5% by Ogden Power Development - Cayman, Inc., and 72.5% by Quezon Generating Company, Ltd. (c) Yorkshire USA, Inc. was acquired by Ogden Projects, Inc. when Yorkshire Water terminated its involvement as a direct participant in the Venture. (d) 40% of the stock of Island Power Corporation is owned by Ogden Power International Holdings, Inc. and 60% is owned by various stockholders. (e) 50% of the stock of LINASA Cogeneracion y Asociados, S.L. is owned by Ogden Power International Holdings, Inc, and 50% is owned by Industria Jabonera Lina, S.A. (f) 50% of the stock of Ogden Energy Group do Brasil Ltda is owned by Ogden Energy Group, Inc. and 50% by Ogden Projects, Inc. Ogden Energy Group, Inc. is the Management Company. (g) 37.5% of the stock of Hungarian-American Geothermal Limited Liability Company is owned by Ogden Power International Holdings, Inc., 37.5 % is owned by Davenport Power, L.L.C. and 25% is owned by MOL Magyar Olau-es G_zipari Rt. (h) 40% of the stock of Ambiente 2000 S.r.l. is owned by Ogden Waste to Energy of Italy, Inc. and 60% is owned by Ecosesto S.p.A. (i) 99% of the stock of Ogden Martin Operations of Union LLC is owned by Ogden Projects, Inc. and 1% is owned by Ogden Waste to Energy, Inc. ATTACHMENT B OGDEN ENERGY GROUP, INC. - U.S. AND FOREIGN SUBSIDIARIES LIST COMPANY - ------- Ogden Energy Group, Inc. Ogden Energy Group do Brasil Ltda. Ogden Projects, Inc. Ogden Energy, Inc. Ogden Madhya Pradesh Operating Private Limited Ogden Philippines Operating, Inc. Ogden Energy West, Inc. .. . . . . .Ogden Energy Sao Jeronimo, Inc. .. . . . . . . . . . . . . Mecaril S.A. .. . . . . .Ogden Power Corporation Geothermal, Inc. Imperial Power Services, Inc. New Martinsville Hydro-Operations Corporation Ogden Brandywine Operations, Inc. Ogden Geothermal Operations, Inc. Ogden Hydro Operations, Inc. Ogden Oil & Gas, Inc. Ogden Power Equity Corporation Catalyst New Martinsville Hydroelectric Corporation ERC Energy, Inc. Ogden Heber Field Energy, Inc. Ogden Hydro Energy, Inc. Ogden Power International Holdings, Inc. Edison Bataan Cogeneration Corporation Hidro Operaciones Don Pedro S.A. Island Power Corporation Hungarian-American Geothermal Limited Liability Company LINASA Cogeneracion y Asociados, S.L. Ogden Energy India Investments Ltd. . . . .Ogden Chinese Investments Ltd. . . . . . . . . Ogden Energy China (Alpha) Ltd. . . . . . . . . Ogden Energy China (Beta) Ltd. . . . . . . . . Ogden Energy China (Delta) Ltd . . . . . . . . Ogden Energy China (Gamma) Ltd Ogden Energy of Bongaigaon Private Limited Ogden Energy India (CBM) Limited Ogden Taiwan Investments Limited Ogden Energy Philippine Holdings, Inc. OPI Quezon, Inc. Ogden Power Development - Cayman, Inc. Quezon Power, Inc. (new dvlpmnt co.) Ogden Power Development, Inc. Ogden Power Development of Bolivia, Inc. Page 1 OEG Foreign subsidiaries are highlighted in bold. PERCENT COMPANY OWNERSHIP INCORP. E.I.N. - ------- --------- ------- ------ Ogden Energy Group, Inc. (cont.) Ogden Projects, Inc. (cont.) . . . OPDB, Ltd. Ogden Energy Asia Pacific Limited Ogden Power Pacific, Inc. (f/k/a Pacific Energy) Burney Mountain Power Mammoth Geothermal Company Mammoth Power Company Mt. Lassen Power Ogden Power Plant Operations Pacific Energy Resources Incorporated Pacific Geothermal Company Pacific Hydropower Company Pacific Oroville Power, Inc. Pacific Penobscot Power Company Pacific Recovery Corporation Pacific Wood Fuels Company Pacific Wood Services Company Penstock Power Company 8309 Tujunga Avenue Corp. Ogden Rosemary Operations, Inc. Ogden SIGC Energy, Inc. AMOR 14 Corporation Ogden SIGC Energy II, Inc. Ogden SIGC Geothermal Operations, Inc. Three Mountain Power, LLC Ogden Environmental and Energy Services Co., Inc. Analytical Technologies, Inc. G A Technical Services, Inc. Multiple Dynamics Corporation Ogden Environmental and Energy Services Co., Inc. of Ohio Ogden Environmental and Engineering Services Co., Inc. Ogden Environmental Federal Services Co., Inc. Ogden Engineering and Construction, Inc. Ogden umwelt und energie systeme GmbH IEAL energie & umwelt consult, GmbH Olmec Insurance, Ltd. Ogden Martin Operations of Union, LLC Ogden Waste to Energy, Inc. Ogden Energy Resource Corp. Ogden Martin Systems, Inc. Ogden Engineering Services, Inc. Ogden Marion Land Corp. Ogden Martin Systems of Alexandria/Arlington, Inc. Page 2 OEG Foreign subsidiaries are highlighted in bold. PERCENT COMPANY OWNERSHIP INCORP. E.I.N. - ------- --------- ------- ------ Ogden Energy Group, Inc. (cont.) Ogden Projects, Inc. (cont.) OMS Equity of Alexandria/Arlington, Inc. Ogden Martin Systems of Babylon, Inc. Ogden Martin Systems of Bristol, Inc. Ogden Martin Systems of Clark, Inc. OMSC One, Inc. OMSC Two, Inc. OMSC Three, Inc. OMSC Four, Inc. Ogden Martin Systems of Fairfax, Inc. Ogden Martin Systems of Haverhill, Inc. Haverhill Power, Inc. LMI, Inc. Ogden Omega Lease, Inc. Ogden Haverhill Properties, Inc. Ogden Martin Systems of Hillsborough, Inc. Ogden Martin Systems of Huntington, Inc. Ogden Martin Systems of Huntington Resource Recovery One Corp. Ogden Martin Systems of Huntington Resource Recovery Two Corp. Ogden Martin Systems of Huntington Resource Recovery Three Corp. Ogden Martin Systems of Huntington Resource Recovery Four Corp. Ogden Martin Systems of Huntington Resource Recovery Five Corp. Ogden Martin Systems of Huntington Resource Recovery Six Corp. Ogden Martin Systems of Huntington Resource Recovery Seven Corp. Ogden Martin Systems of Huntsville, Inc. Ogden Martin Systems of Indianapolis, Inc. Ogden Martin Systems of Kent, Inc. NRG/Recovery Group, Inc. (f/k/a Ogden Martin Systems of Lake, Inc.) Ogden Martin Systems of Lancaster, Inc. Ogden Martin Systems of Lawrence, Inc. Ogden Martin Systems of Lee, Inc. Ogden Martin Systems of Long Island, Inc. Ogden Martin Systems of Marion, Inc. Ogden Martin Systems of Mercer, Inc. Ogden Martin Systems of Montgomery, Inc. Ogden Martin Systems of Onondaga, Inc. Ogden Martin Systems of Onondaga Two Corp. Ogden Martin Systems of Onondaga Three Corp. Ogden Martin Systems of Onondaga Four Corp. Ogden Martin Systems of Onondaga Five Corp. OMS Onondaga Operations, Inc. Ogden Martin Systems of Pasco, Inc. Ogden Martin Systems of San Bernardino, Inc. Page 3 OEG Foreign subsidiaries are highlighted in bold. PERCENT COMPANY OWNERSHIP INCORP. E.I.N. - ------- --------- ------- ------ Ogden Energy Group, Inc. (cont.) Ogden Projects, Inc. (cont.) Ogden Martin Systems of Stanislaus, Inc. OMS Equity of Stanislaus, Inc. Ogden Martin Systems of Tampa, Inc. Ogden Martin Systems of Tulsa, Inc. Ogden Martin Systems of Union, Inc. Ogden Waste to Energy, Ltd. (formerly Ogden Martin Systems, Ltd) Ogden Martin Systems of Nova Scotia, Ltd. Ogden Projects of Haverhill, Inc. Ogden Wallingford Associates, Inc. Ogden Waste to Energy Asia Investments Ogden Waste to Energy of Italy, Inc. Ambiente 2000 S.r.l. Ogden Waste Treatment Services, Inc. Ogden Waste Solutions, Inc. Ogden Waste Treatment Services USA, Inc. OPW Associates, Inc OPWH, Inc. ................. RRS Holdings Inc. Michigan Waste Energy, Inc. Oahu Waste Energy Recovery, Inc. Ogden Projects of Hawaii, Inc. Resource Recovery Systems of Connecticut, Inc. OPI Carmona Limited OPI Carmona One Limited Ogden Energy Engineering, Inc. Ogden Projects Holdings, Inc. Ogden Water Holdings, Inc. Ogden Water Systems, Inc. Ogden Yorkshire Acquisition, Inc. Cunningham Environmental Support, Inc. Ogden Yorkshire Water of Bessemer, Inc. Ogden Yorkshire Water of Canada, Ltd. Ogden Yorkshire Water of Taunton, Inc. Ogden Water Systems of Canada, Ltd. Yorkshire USA, Inc.