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Exhibit 21

HARSCO CORPORATION
Subsidiaries of Registrant

Subsidiary	Country of Incorporation	Ownership Percentage
Harsco Metals Argentina S.A.	Argentina		100	%
Bell Scaffolding (Gladstone) Pty. Ltd.	Australia		100	%
Bell Scaffolding (Hunter Valley) Pty. Ltd.	Australia		100	%
Bell Scaffolding (NSW) Pty. Ltd.	Australia		100	%
Bell Scaffolding Pty. Ltd.	Australia		100	%
Harsco (Australia) Pty. Limited	Australia		100	%
Harsco Industrial Air-X-Changers Pty. Ltd.	Australia		80	%
Harsco Infrastructure Australia Pty. Ltd.	Australia		100	%
Harsco Metals Australia Holding Investment Co. Pty. Ltd.	Australia		100	%
Harsco Metals Australia Pty. Ltd.	Australia		100	%
Harsco Metals NSW Pty. Ltd	Australia		100	%
Harsco Metals Victoria Pty. Ltd.	Australia		100	%
Harsco Rail Pty. Ltd.	Australia		100	%
Harsco Infrastructure Austria GmbH	Austria		100	%
Harsco Minerals Austria GmbH	Austria		100	%
Harsco Metals AluServ Middle East W.L.L.	Bahrain		65	%
Harsco Belgium S.P.R.L.	Belgium		100	%
Harsco Infrastructure Industrial Services S.A.	Belgium		100	%
Harsco Metals Belgium S.A.	Belgium		100	%
Harsco Metals Emirates Partnership	Belgium		65	%
Harsco Rail Emirates Maatschap/Societe de Droit Commun	Belgium		100	%
Harsco (Bermuda) Limited	Bermuda		100	%
Harsco do Brasil Participacoes e Servicos Siderurgicos Ltda.	Brazil		100	%
Harsco Metals Limitada	Brazil		100	%
Harsco Minerais Limitada	Brazil		100	%
Harsco Armco Staco Gradesur Fabricacao de Grades Metalicas e Servicos	Brazil		51	%
Harsco Infraestructura Colombia Ltd.	British Virgin Islands		100	%
Harsco Infrastructure Trademarks and Intellectual Property(South America) Ltd.	British Virgin Islands		100	%
Harsco Canada Corporation Societe Harsco Canada	Canada		100	%
Harsco Canada General Partner Limited	Canada		100	%
Harsco Canada Limited Partnership	Canada		100	%
Harsco Nova Scotia Holding Corporation	Canada		100	%
Harsco Infrastructure (Guernsey) Ltd.	Channel Islands-Guernsey		100	%
Harsco Infrastructure (Channel Islands) Ltd.	Channel Islands-Jersey		100	%
SGB Overseas Limited	Channel Islands-Jersey		100	%
Harsco Infraestructura Chile Ltda.	Chile		100	%
Harsco Metals Chile S.A.	Chile		100	%
Harsco Industrial Grating China Holding Company Limited	China		70	%
Harsco Infrastructure Zhejiang Co., Ltd.	China		70	%

Subsidiary	Country of Incorporation	Ownership Percentage
Harsco Metals (Ningbo) Co. Ltd.	China		56	%
Harsco Metals Tangshan Co. Ltd.	China		100	%
Harsco Metals Zhejiang Co. Ltd.	China		80	%
JiangSu Harsco Industrial Grating Company Limited	China		70	%
Shanxi TISCO-Harsco Technology Co., Ltd.	China		60	%
General Corporate Services S.A.	Costa Rica		100	%
Harsco Infraestructura Costa Rica S.A.	Costa Rica		100	%
Harsco Infrastructure CZ s.r.o	Czech Republic		100	%
Harsco Metals Czech s.r.o.	Czech Republic		65	%
Harsco Metals CZ s.r.o	Czech Republic		100	%
Harsco Metals spol s.r.o.	Czech Republic		100	%
Harsco Infrastructure Danmark A/S	Denmark		100	%
Hunnebeck Middle East FZE	Dubai		100	%
Harsco Infrastructure for Scaffolding and Formwork S.A.E.	Egypt		98.85	%
Harsco Metals Egypt L.L.C.	Egypt		100	%
Heckett Bahna Co. For Industrial Operations S.A.E.	Egypt		65	%
Heckett MultiServ Bahna S.A.E.	Egypt		65	%
Slag Processing Company Egypt (SLAR) S.A.E.	Egypt		60	%
Ginebra S.A. de C.V.	El Salvador		100	%
Harsco Infraestructura El Salvador, S.A. de C.V.	El Salvador		100	%
MultiServ Oy	Finland		100	%
Harsco Infrastructure France S.A.S.	France		100	%
Harsco Metals BC Nord S.A.S.	France		100	%
Harsco Metals Evulca Sud S.A.S.	France		100	%
Harsco Metals France S.A.S.	France		100	%
Harsco Metals Industries S.A.S.	France		100	%
Harsco Metals Logistique et Services Specialises S.A.S.	France		100	%
Harsco Metals Mill Services S.A.S.	France		100	%
Harsco Metals Solomat Industrie S.A.S.	France		100	%
Harsco Metals Sud S.A.S.	France		100	%
Harsco Minerals France S.A.S.	France		100	%
Harsco France S.A.S.	France		100	%
Harsco Infrastructure Deutshcland GmbH	Germany		100	%
Harsco Infrastructure Industrial Services GmbH	Germany		100	%
Harsco Infrastructure Services GmbH	Germany		100	%
Harsco Minerals Deutschland GmbH	Germany		100	%
Harsco Rail Europe GmbH	Germany		100	%
Harsco (Gibraltar) Holding Limited	Gibraltar		100	%
Alexandros International Ltd	Greece		100	%
Harsco Infraestructura Guatemala, S.A.	Guatemala		100	%
Harsco Metals Guatemala S.A.	Guatemala		100	%
Harsco China Holding Company Limited	Hong Kong		100	%
Harsco Infrastructure Magyarorszag K.f.t.	Hungary		100	%
Harsco India Metals Private limited	India		90	%
Harsco India Private Ltd.	India		90	%

Subsidiary	Country of Incorporation	Ownership Percentage
Harsco India Services Private Ltd.	India		100	%
Harsco Infrastructure Italia S.p.A.	Italy		100	%
Harsco Metals Italia S.r.L.	Italy		100	%
Ilserv S.r.L.	Italy		65	%
Harsco Infrastructure Baltics S.I.A.	Latvia		100	%
Harsco Interamerica Ltd S.a.r.l.	Luxembourg		100	%
Harsco Luxembourg S.a.r.L	Luxembourg		100	%
Harsco Metals Luxembourg S.A.	Luxembourg		100	%
Harsco Metals Luxequip S.A.	Luxembourg		100	%
Excell Americas Holdings Ltd S.a.r.L.	Luxembourg		100	%
Harsco Infrastructure Malaysia Sdn. Bhd.	Malaysia		100	%
Harsco Industrial IKG de Mexico, S.A. de C.V.	Mexico		100	%
Harsco Infrastructura Mexico S.A. de C.V.	Mexico		100	%
Harsco Metals de Mexico S.A. de C.V.	Mexico		100	%
Irving, S.A. de C.V.	Mexico		100	%
Harsco Asia Investment B.V.	Netherlands		100	%
GasServ (Netherlands) II B.V.	Netherlands		100	%
Harsco Asia Pacific Investment B.V.	Netherlands		100	%
GasServ (Netherlands) VII B.V.	Netherlands		100	%
Harsco (Mexico) Holdings B.V.	Netherlands		100	%
Harsco Infrastructure B.V.	Netherlands		100	%
Harsco Infrastructure Construction Services B.V.	Netherlands		100	%
Harsco Infrastructure Industrial Services B.V.	Netherlands		100	%
Harsco Infrastructure Logistic Services B.V.	Netherlands		100	%
Harsco International Finance B.V.	Netherlands		100	%
Harsco Investments Europe B.V.	Netherlands		100	%
Harsco Metals Holland B.V.	Netherlands		100	%
Harsco Metals Ostellijk Staal International B.V.	Netherlands		100	%
Harsco Metals Transport B.V.	Netherlands		100	%
Harsco Minerals Europe B.V.	Netherlands		100	%
Harsco Nederland Slag B.V.	Netherlands		100	%
Heckett MultiServ China B.V.	Netherlands		100	%
Heckett MultiServ Far East B.V.	Netherlands		100	%
MultiServ International B.V.	Netherlands		100	%
Slag Reductie (Pacific) B.V.	Netherlands		100	%
Slag Reductie Nederland B.V.	Netherlands		100	%
Harsco (Peru) Holdings B.V.	Netherlands		100	%
Harsco Europa B.V.	Netherlands		100	%
Harsco Finance B.V.	Netherlands		100	%
Harsco Metals SteelServ Limited	New Zealand		50	%
Harsco Infrastructure Norge A.S.	Norway		100	%
Harsco Metals Norway A.S.	Norway		100	%
Financo S.A.	Panama		100	%
Harsco Infraestructura Panama S.A.	Panama		100	%
Patent Panama S.A.	Panama		100	%
Representaciones Arcal S.A.	Panama		100	%
Harsco Infrastructura Peru S.A.	Peru		100	%
Harsco Metals Peru S.A.	Peru		100	%

Subsidiary	Country of Incorporation	Ownership Percentage
Harsco Infrastructure Polska SP Z.O.O.	Poland		100	%
Harsco Metals Polska SP Z.O.O.	Poland		100	%
Harsco Infrastructure Portugal Ltda.	Portugal		100	%
Harsco Metals CTS Prestacao de Servicos Tecnicos e Aluguer de Equipamentos LDA Unipessoal	Portugal		100	%
Harsco Infrastructure Puerto Rico Corp.	Puerto Rico		100	%
Harsco Al Darwish United W.L.L.	Qatar		49	%
Harsco Infrastructure Romania S.R.I.	Romania		100	%
Harsco Metals Romania S.R.I.	Romania		100	%
O.O.O. Harsco Infrastructure RUS	Russia		100	%
Harsco Baroom Ltd.	Saudi Arabia		51	%
Harsco Metals Saudi Arabia Ltd.	Saudi Arabia		55	%
Harsco Metals D.O.O. Smederevo	Serbia		100	%
Harsco Infrastructure Singapore Pte. Ltd.	Singapore		100	%
Harsco Infrastructure Slovensko s.r.o.	Slovak Republic		100	%
Harsco Metals Slovensko s.r.o.	Slovak Republic		100	%
Harsco Minerali d.o.o.	Slovenia		100	%
Harsco Infrastructure South Africa (Pty.) Ltd.	South Africa		100	%
Harsco Metals RSA Africa (Pty.) Ltd.	South Africa		100	%
Harsco Metals South Africa (Pty.) Ltd.	South Africa		100	%
Harsco Metals SRH Mill Services (Pty.) Ltd.	South Africa		100	%
Harsco Metals SteelServ (Pty.) Ltd.	South Africa		100	%
Harsco Metals Gesmafesa S.A.	Spain		100	%
Harsco Metals Iberica S.A.	Spain		100	%
Harsco Metals Intermetal S.A.	Spain		100	%
Harsco Metals Lycrete S.A.	Spain		100	%
Harsco Metals Reclamet S.A.	Spain		100	%
Excell Africa Holdings, Ltd.	St. Kitts & Nevis		100	%
Harsco Infrastructure Sverige A.B.	Sweden		100	%
Harsco Metals Sweden A.B.	Sweden		100	%
Fourninezero Ltd.	U.K.		100	%
Harsco Metals Thailand Company Ltd.	Thailand		100	%
Harsco Infrastructure West Indies Limited	Trinidad		100	%
Harsco (U.K.) Limited	U.K.		100	%
Faber Prest Limited	U.K.		100	%
Harsco (UK) Group Ltd	U.K.		100	%
Harsco (UK) Holdings Ltd	U.K.		100	%
Harsco (York Place) Limited	U.K.		100	%
Harsco Fairerways Limited Partnership	U.K.		100	%
Harsco Fairestways Limited Partnership	U.K.		100	%
Harsco Fairways Partnership	U.K.		100	%
Harsco Higherlands Limited Partnership	U.K.		100	%
Harsco Highestlands Limited Partnership	U.K.		100	%
Harsco Highlands Partnership	U.K.		100	%
Harsco Infrastructure Group Ltd.	U.K.		100	%
Harsco Infrastructure Middle East Ltd.	U.K.		100	%
Harsco Infrastructure Services Ltd.	U.K.		100	%
Harsco Investment Ltd.	U.K.		100	%
Harsco Leatherhead Limited	U.K.		100	%

Subsidiary	Country of Incorporation	Ownership Percentage
Harsco Metals 385 plc	U.K.		100	%
Harsco Metals Group Limited	U.K.		100	%
Harsco Metals Holdings Limited	U.K.		100	%
Harsco Mole Valley Limited	U.K.		100	%
Harsco Rail Limited	U.K.		100	%
Harsco Surrey Limited	U.K.		100	%
MultiServ Investment Limited	U.K.		100	%
SGB Investments Ltd.	U.K.		100	%
Short Bros (Plant) Ltd.	U.K.		100	%
Harsco Infrastructure Holding Ltd.	U.K.		100	%
Harsco Defense Holding, LLC	U.S.A.		100	%
Harsco Engineering (California), Inc.	U.S.A.		100	%
Harsco Engineering LLC	U.S.A.		100	%
Harsco Holdings, Inc.	U.S.A.		100	%
Harsco Infrastructure Holdings, Inc.	U.S.A.		100	%
Harsco Metals ARI LLC	U.S.A.		100	%
Harsco Metals BRI LLC	U.S.A.		100	%
Harsco Metals ECR LLC	U.S.A.		100	%
Harsco Metals GLRS LLC	U.S.A.		100	%
Harsco Metals Holding LLC	U.S.A.		100	%
Harsco Metals Intermetal LLC	U.S.A.		100	%
Harsco Metals Investment LLC	U.S.A.		100	%
Harsco Metals Operations LLC	U.S.A.		100	%
Harsco Metals SRI LLC	U.S.A.		100	%
Harsco Metals VB LLC	U.S.A.		100	%
Harsco Minerals Briquetting LLC	U.S.A.		100	%
Harsco Minerals KY LLC	U.S.A.		100	%
Harsco Minerals PA LLC	U.S.A.		100	%
Harsco Minerals Technologies L.L.C.	U.S.A.		100	%
Harsco Minnesota Finance, Inc.	U.S.A.		100	%
Harsco Minnesota LLC	U.S.A.		100	%
Harsco Technologies LLC	U.S.A.		100	%
Harsco Infrastructure Ukraine L.L.C.	Ukraine		100	%
Harsco Metals Ukraine L.L.C.	Ukraine		100	%
Harsco Corporation FZE	United Arab Emirates		100	%
Harsco Infrastructure Emirates L.L.C.	United Arab Emirates		49	%
Harsco Infrastructure Quebeisi L.L.C.	United Arab Emirates		49	%

        Companies in which Harsco Corporation does not exert management control are not consolidated. These companies are listed below as unconsolidated entities.

Company Name	Country of Incorporation	Ownership Percentage
Phooltas Harsco Rail Solutions Private Limited	India		40	%
P.T. Purna Baja Heckett	Indonesia		40	%

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Exhibit 21

HARSCO CORPORATION Subsidiaries of Registrant