exh21.htm

World Headquarters

International Rectifier Corporation (Delaware, USA)

101 N. Sepulveda Blvd.

El Segundo, California 90245

Phone: (310) 726-8000

Fax: (310) 322-3332

Internet: www.irf.com

North American Operations

International Rectifier Corporation (Delaware, USA)

41915 Business Park Drive

Temecula, California 92590

Phone: (909) 676-7500

Fax: (909) 676-9154

Rectificadores Internacionales, S.A. de C.V. (Mexico)

Prolongacion Ave. Los Cabos No. 9234

Parque Industrial Pacifico II

C.P. 22709

Tijuana, Baja California, Mexico

Phone: (++) 52 66 26 08 04

Fax: (++) 52 66 26 01 02

International Rectifier HiRel Products LLC (Delaware, USA)

205 Crawford Street

Leominster, Massachusetts 01453

Phone: (978) 534-5776

Fax: (978) 537-4246

International Rectifier, HiRel Products, Inc.

(Delaware, USA)

2520 Junction Avenue,

San Jose, California 95134

Phone: (408) 434-5000

Fax: (408) 434-5230

IR Epi Services, Inc. (Delaware, USA)

550 West Juanita

Mesa, Arizona 85210

Phone: (480) 668-4000

Fax: (480) 464-7421

International Rectifier Corporation (Delaware, USA)

One Highwood Drive, Suite 302

Tewksbury, MA 01876

Phone: (978)-640-0011

Fax: (978) 640-0222

European Operations

IR Newport Limited (England and Wales)

Cardiff Road

Newport, Wales

NP10 8YJ, United Kingdom

Phone: (++) 49 1633 810 121

Fax: (++) 49 1633 810 820

International Rectifier Company (Great Britain) Ltd. (England and Wales)

The Observatory

Castlefield Road

Reigate, Surrey,

RH2 0SG, United Kingdom

Phone: (++) 44 (0) 1737227200

Fax: (++) 44 (0) 737227201

International Rectifier Company (Great Britain) Ltd. (England and Wales)

Branch Office—Finland

Mikkelankallio 3 FIN-02770 ESPOO

Phone: (++) 358 9 8599 155

Fax: (++) 358 9 8599 1560

International Rectifier Company (Great Britain) Ltd. (England and Wales)

Branch Office—France

Immeuble Zeta B 3 Avenue de Canada B LP8177

91974 Courtaboeuf Cedex, France

Phone: (++) 33 1 64 86 49 50

Fax: (++) 33 1 64 86 49 70

International Rectifier Company (Great Britain) Ltd. (England and Wales)

Branch Office- Russia

Regus Business Centre Avrora LLC

INN 7705618656/ KPP 770501001

Sadovnicheskaya st. 82, bld. 2,

115035, Moscow, Russia

IR Denmark ApS (Denmark)

Literbuen 10 C

2740 Skovlunde, Denmark

Phone: (++) 45 45 28 06 96

Fax: (++) 45 45 28 19 96

International Rectifier GmbH (Germany)

Frankfurter Strasse 227

D-63263 Neu-Isenburg Germany

Phone: (++) 49 6102 884 400

Fax: (++) 49 6102 884 433

IR International Holdings, Inc. (Delaware, USA)

Branch Office—Moscow, Russia

Room 325 Semenovsky per. 15

Moscow, 105023, Russia

Phone: (++) 7 095 360 5735

Fax: (++) 7 095 964 9560

IR Italy S.r.I. (Italy)

Via Trieste 25

Pavia, 27100 Italy

Southern Zone Phone: (++) 33 16 486 4650

Southern Zone Fax: (++)33 16 486 4970

Asian Operations

International Rectifier Japan Company, Ltd. (Japan)

Sunshine 60 Building, 51st Floor

3-1-1, Higashi-Ikebukuro

Toshima-Ku, Tokyo, 170-6051 Japan

Phone: (++) 81 3 3983 0641

Fax: (++) 81 3 3983 5956

International Rectifier Japan Company, Ltd. (Japan)

Branch Office—Osaka, Japan

Kazu IT Bldg., 4th Floor

2-10-27 Minami-Semba

Chuo-Ku, Osaka-Shi, Osaka 542-0081

Phone: (++) 81 6 6258 7560

Fax: (++) 81 6 6258 7561

International Rectifier Japan Company, Ltd. (Japan)

Branch Office—Nagoya, Japan

Meitetsu Kanayama Daiichi Bldg. 5F

25-1 Namiyose-cho Atsuta-ku

Nagoya-shi, Aichi 456-0003

Tel: (++)81 52 871 0570

Fax: (++)81 52 871 0576

Shanghai International Rectifier Trading, Ltd. (China)

231 Fu Te Road North

Waigaoqiao Free Trade Zone

Pudong, Shanghai, 200231, P.R. China

Phone: (++) 86 21 5866 6060

Fax: (++) 86 21 5866 1654

Shanghai International Rectifier Trading Ltd. - Xi’an Branch (China)

Building B #106,

38 GaoXin Road Hi-tech Industrial Development Zone,

Xi’an 71075, China

Tel: ++86 29 6890 2929

Fax: ++86 29 6890 2929

IR International Holdings, Inc. (Delaware, USA)Beijing Representative Office (Beijing, China)

Canway Building, Suite 710

66 Nan Li Shi Road, Xi Cheng District

Beijing, 100045, P.R. China

Phone: (++) 86 10 6803 8195

Fax: (++) 86 10 6803 8194

IR International Holdings, Inc. (Delaware, USA)

Shenzhen Representative Office (Shenzhen, China)

Unit 02-04, 15/F Modern International Building

No. 3038 Jintian Rd., Futian District

Shenzhen, 518048, China

Phone: (++) 86 755 8368 3686

Fax: (++) 86 755 8368 3690

IR International Holdings, Inc. (Delaware, USA)

Shanghai Representative Office (Shanghai, China)

Unit A-B, 10th Floor, Xinmei Union Square

999 Pudong South Road

Shanghai, 200120, China

Phone: (++) 86 21 6887 7600

Fax: (++) 86 21 5877 3880

IR International Holdings, Inc. (Delaware, USA)

Taiwan Branch (Taiwan)

22F, Suite A, 105, Section 2, Tun Hwa South Road,

Taipei, 10682, Taiwan

Phone: (++) 886 2 2709 8356

Fax: (++) 886 2 2709 8150

International Rectifier Southeast Asia Pte Ltd (Singapore) -

Philippines Representative Office (Philippines)

Unit 2008, 20F Strata 100 Bldg

F. Ortigas Jr Road

Ortigas Center, Pasig City 1605

Tel: 632 633 7882

Fax: 632 631 6661

International Rectifier Korea (Korea)

9F Dukmyung Bldg.

170-9 Samsung-Dong, Kangnam-Gu,

Seoul, 135-741 Korea

Phone: (++) 82 2 557 7613

Fax: (++) 82 2 557 7617

International Rectifier Southeast Asia Pte. Ltd. (Singapore)

23 Serangoon North Avenue 5

#03-00 BTH Centre Singapore 554530

Phone: (++) 65 6506 2000

Fax: (++) 65 6506 2099

International Rectifier Hong Kong, Ltd. (Hong Kong)

Unit 308, New East Ocean Centre

No. 9 Science Museum Road

Tsimshatsui East, Kowloon

Hong Kong

Phone: (++) 852 2803 7380

Fax: (++) 852 2540 5835

International Rectifier Corporation (Delaware, USA), India Liaison office (Bangalore, India)

No. 407, Prestige Centre Point, Cunningham Rd.

Bangalore 560052, India

Tel: ++91 80 4114 2644/2645

Fax: ++91 80 4114 2643

International Rectifier Malaysia Sdn Bhd (Malaysia)

Carsem, Ipoh, Perak, Malaysia

Tel: ++65 838 4633

Fax: ++65 733 7995