Koch-Glitsch Signs Exclusive Sales and Marketing Agreement With SimSci-Esscor.

Business Editors/High-Tech Writers

LAKE FOREST, Calif.--(BUSINESS WIRE)--Oct. 21, 2003

Companies to Enhance and Market Simulation Tools for Rate-Based and

Batch Distillation Processes in Refining, Chemical and Petrochemical

Plants

SimSci-Esscor, an operating unit of Invensys plc, today announced it has signed a 10-year, exclusive agreement with Koch-Glitsch, a global leader in mass transfer and mist-elimination technology. Under terms of the contract, the organizations will work together to develop, enhance, market and support RateFrac(TM) and BatchFrac(TM), industry-leading simulation software tools designed for rate-based and batch-distillation processes in refining, chemical and petrochemical plants.

The RateFrac software is a rate-based, non-equilibrium model used to simulate all types of multi-stage, vapor-liquid fractionation operations. The addition of this simulation program will expand SimSci-Esscor's offerings in the process simulation market. The BatchFrac model, a rigorous batch-distillation program, is used by chemists and engineers involved in the design and optimization of batch processes.

"We are very pleased to be working exclusively with SimSci-Esscor, a market leader known for its focus on providing robust and reliable simulation software," said Bob DiFulgentiz, president of Koch-Glitsch. "We remain strongly committed to supporting these tools and believe that this agreement delivers the best approach to ensure the long-term stability for the user community, as well as the further development and enhancement of simulation solutions."

The agreement, effective Nov. 1, 2003, will give SimSci-Esscor the exclusive right to sell the market leading Koch-Glitsch simulation tools to new customers on a worldwide basis, as well as upgrade current users with additional licenses to both products. The strategic union provides SimSci-Esscor with an opportunity for market expansion through the sale of its simulation and optimization products to customers currently using the RateFrac and BatchFrac software.

As part of the agreement, both organizations will continue upgrading and enhancing the features, functions and ease-of-use of these tools to provide current and new customers with improved business processes and maximum return on investment.

"SimSci-Esscor has recognized for some time that the technical strengths of the RateFrac and BatchFrac models are important to many customers around the world," said Ken Brown, SimSci-Esscor vice president and general manager. "We are looking forward to working with Koch-Glitsch and the strong future that the company presents for its applications coupled with the enhanced simulation tools provided by SimSci-Esscor."

SimSci-Esscor will integrate both programs as add-on modules with its PRO/II solution, the company's flagship steady-state process simulator. The seamless integration will be completed using SimSci-Esscor's SIM4ME architecture that provides a common graphical user interface and complete interoperability between the simulation tools. The SIM4ME architecture, which includes other SimSci-Esscor simulation and optimization tools, provides customers with a comprehensive solution to successfully design, operate and optimize process plants.

"For many years, Toyo Engineering has used SimSci-Esscor's technology as a corporate standard," said Masakazu Sasaki, Ph.D., technical leader at Toyo Engineering Corp., one of Japan's leading engineering, procurement and construction firms focusing on energy industry projects. "We are delighted that we will now be able to use Koch-Glitsch's BatchFrac & RateFrac technology with SimSci-Esscor's PRO/II solution. This will significantly enhance our process engineering productivity and demonstrates the commitment of SimSci-Esscor to delivering best-of-class simulation capabilities to the process industries."

About Koch-Glitsch

Koch-Glitsch, LP, a global leader in the production of mass transfer and mist elimination technology and related field services, is a Koch Chemical Technology Group, LLC, company. For more information about Koch-Glitsch, please visit www.koch-glitsch.com.

About Toyo Engineering Corp.

Toyo Engineering Corp. is one of the leading engineering, procurement and construction firms in Japan. Founded in 1961, the company also provides design, test operations, advanced R&D and technical guidance worldwide in the oil and gas, chemicals, petrochemicals and electric power generation industries. Noted for its many project firsts and technical innovations, Toyo Engineering concentrates on energy industry projects. Headquartered in Chiba, Japan, the company operates a number of domestic and international subsidiaries and employs nearly 3,000 people. Toyo Engineering is listed on the Tokyo Stock Exchange and is an ISO 9001-certified company. More information about Toyo Engineering Corp. can be found at www.toyo-eng.co.jp.

About SimSci-Esscor

SimSci-Esscor, an operating unit of Invensys plc, is a leader in the development and deployment of industrial process simulation software and systems for a variety of industries, including oil and gas production, petroleum refining, petrochemical and chemical manufacturing, electrical power generation, mining, pulp and paper, and engineering and construction. SimSci-Esscor solutions enable clients to minimize capital requirements, optimize facility performance, and maximize returns on investments in producing assets. SimSci-Esscor supports more than 750 client companies in more than 70 countries. For more information, visit the SimSci-Esscor Web site at www.simsciesscor.com.

About Invensys

Invensys is a global leader in production technology. The group helps customers improve productivity, performance, and profitability using innovative services and technologies and a deep understanding of their industries and applications.

Invensys Production Management works closely with customers to increase performance of production assets, maximize return on investment in production and data management technologies and remove cost and cash from the supply chain. The division includes APV, Avantis, Eurotherm, Foxboro, IMServ, SimSci-Esscor, Triconex, and Wonderware. These businesses address process and batch industries -- including oil and gas, chemicals, power and utilities, food and beverage, and personal health care -- and the discrete and hybrid manufacturing sectors.

Invensys Rail Systems is a global leader in the design, manufacture, supply, installation, commissioning and maintenance of safety related rail signaling and control systems as well as a complete range of rail signaling and communications products. The business includes Westinghouse Rail Systems Limited (WRSL), Dimetronic Signals, Safetran Systems, Burco Services, Westinghouse Signals Australia, and Foxboro Transportation. WRSL was recently awarded two contracts valued at more than 850 million pounds (US$1.3 billion) for the renewal of signaling on the London Underground.

Invensys also currently serves other market sectors through its Development Division. The businesses in this division are: Appliance Controls, APV Baker, Climate Controls, Hansen Transmissions, Lambda, Metering Systems, Powerware and Teccor. Invensys is actively seeking to develop these businesses through equity partners or new owners.

Invensys operates in more than 60 countries, with its headquarters in London. For more information, visit www.invensys.com.

Invensys, SimSci-Esscor, Pro/II, Hextran, Inplant, Visual Flow, Pipephase, Foxboro, APV, Avantis, Eurotherm, Triconex, Wonderware, Powerware, IMServ, Safetran Systems, Burco Systems, Westinghouse Signals, APV Baker, Hansen Transmissions, and Lambda are trademarks of Invensys plc, its subsidiaries and affiliated companies. All other brands may be trademarks of their respective owners.