Yokogawa Corporate Profile 1 Corporate Information Company Name

Yokogawa Corporate Profile 1

Corporate Information Company Name Yokogawa Electric Corporation Founded September 1, 1915 Incorporated December 1, 1920 Paid-in Capital 43, 401 million yen Sales 433. 4 billion yen (consolidated) Operating Income 29. 3 billion yen (consolidated) Ordinary Income 29. 6 billion yen (consolidated) R&D Investment/Sales 8. 4% Number of Employees 19, 286 Dividend 15 yen Capital Ratio 53. 4% Results of fiscal year 2006 Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 2

Major Events in Yokogawa’s Past 1915 Dr. Tamisuke Yokogawa established an electric meter research institute in Shibuya, Tokyo 1917 First to produce and sell electric meters in Japan 1933 Started research and manufacture of aircraft instruments and flow, temperature, and pressure controllers 1955 Signed a technical assistance agreement for industrial instruments with Foxboro, USA 1957 Established Yokogawa Electric Works, Inc. as North American sales office 1964 Made a full-scale entry into the industrial analyzer market 1974 Established Yokogawa Electric Singapore Pte. Ltd. as Singapore plant Established Yokogawa Electric (Europe) B. V. as European sales office 1975 Released CENTUM, the world's first distributed process control system 1983 Formed Yokogawa Hokushin Electric Corp. through merger with Hokushin Electric Works, Ltd. 1984 Released Model 3520 Analog LSI Test System and entered IC tester field 1986 Changed the Company name to Yokogawa Electric Corporation 1988 Entered the high-frequency measuring instrument business 1997 Announced the Enterprise Technology Solutions business concept 2000 Announced the new VISION-21 & ACTION-21 corporate strategy 2001 Released the world's first 40 Gbps optical communication module and entered the next-generation optical fiber communication field 2002 Acquired 100% of Ando Electric's stock 2006 Announced the Second Milestone of the VISION-21 & ACTION-21 Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 3

Yokogawa Employees Worldwide Yokogawa Electric Corporation 5, 102 Group companies outside Japan 9, 070 Worldwide 19, 286 Group companies in Japan 5, 114 As of the end of March 2007 Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 4

Worldwide Business Operations Operating in 31 countries through 80 companies Regional Headquarters in Europe Yokogawa Europe Regional Headquarters in China Yokogawa China World Headquarters Yokogawa Electric Corporation （China） (Japan) （The Netherlands） Ｃ Regional Headquarters in Middle East Regional Headquarters in ASEAN （Bahrain） （Singapore） Yokogawa Middle East Yokogawa Engineering Asia Regional Headquarters in North America Yokogawa Corporation of America （USA） Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 5

Service Organization A worldwide network of Yokogawa Response Centers, service offices, and service engineers provides a prompt response to all kinds of customer inquiries on an around-the-clock, 365 -day-per-year basis. Response Center Service Office Network On-site maintenance Remote maintenance Dispatch of engineers Data collection and analysis Customers Escalation Technical support from responsible department Supply of Spare parts and components Call center services by specialists Remote monitoring and patrol inspection Supply of information on hardware/software revision The Netherlands Bahrain Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 India Singapore China Corporation Profile Korea USA Brazil 6

Consolidated Sales and Operating Income Sales （Unit: Billion yen） Consolidated Sales and Operating Income ＦＹ 2000 ＦＹ 2001 ＦＹ 2002 ＦＹ 2003 ＦＹ 2004 Sales ＦＹ 2005 Operatig Income ＦＹ 2006 Operating Income The figures are rounded to the nearest 100 million yen. Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 7

Business Segments: Industrial Automation and Control - 1 Production Control Systems CENTUM CS 3000 R 3 Integrated Production Control System STARDOM Network-based Control System Pro. Safe-RS Safety Instrumented System Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile FA-M 3 R Range-free Multi-controller 8

Business Segments: Industrial Automation and Control - 2 Field Instruments and Recorders ADMAG AXF DPharp EJX Magnetic Flowmeter Dｉfferential Pressure Transmitter DXAdvanced Data Acquisition and Display Station GC 1000 MarkⅡ Process Gas Chromatograph Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile PH 450 G p. H Meter 9

Business Segments: Industrial Automation and Control - 3 Information System Solutions Facility and Energy Management Solutions Enemap Energy Navigation System Enerize Exaquantum Real-time Energy Cost Management System Energy Information Management System Shade. Quest/DIAG Mediacl Image Information System Yokogawa’s Comprehensive Solutions Web-based User Interface ASTREA FM 1000 ASTREA AM 1000 Facility Enviroment Management System Facility Access Management System Ethernet BACnet Area Server Lon. Works Heating Ventilation and Air Conditioning Controller Econo-Pilot Energy-saving System for Water Pump Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile Security Gate Controller Image Server IC Card Reader Surveillance Camera WMSS Video Surveillance System 10

Business Segments: Test and Measurement - 1 Semiconductor Testers and Handlers MT 6121 Memory Test System ST 6730 FPD Driver Test System TS 6000 H+ High-Speed SOC Test System HS 2000 Pick and Place IC Handler Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 11

Business Segments: Test and Measurement - 2 Electronic Measuring Instruments DL 9710 Mixed Signal Scope AQ 7270 Optical Time Domain Reflectometer Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 VC 3300 Wireless Communication Tester AQ 6370 Optical Spectrum Analyzer Corporation Profile WT 3000 Precision Power Analyzer SL 1400 Scope. Corder LITE 12

Business Segments: New and Other Businesses - 1 Optical Communications Equipment Optical Moduleｓ 40 Gbps Optical Packet Switch Sagamihara Office Advanced Stage Direct Drive Motors Large-scale Precision XY Stage Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation April 2007 September 2007 Corporation Profile 13

Business Segments: New and Other Businesses - 2 Life Science Related Products CSU-X 1 Cofocal Scanner Kanazawa Office Aviation Equipment Flat Panel Displayｓ for Aviation Use Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 14

One Global YOKOGAWA Customer Centric Solutions Leading Edge Technology Yokogawa will become a global service company that provides solutions. Public Relations & Investor Relations Dept. Yokogawa Electric Corporation Copyright © by Yokogawa Electric Corporation September 2007 Corporation Profile 15