Celanese Selects AspenTech Energy Management Solution for Corporate-wide Deployment

February 27, 2002
DALLAS, and CAMBRIDGE, Mass., Feb 27, 2002 /PRNewswire-FirstCall via COMTEX/ --

Leading chemicals manufacturer standardizes on Aspen Utilities(TM) solution to reduce energy costs at worldwide production sites

Celanese (NYSE: CZ), and Aspen Technology, Inc. (Nasdaq: AZPN) today announced that Celanese, a global leader in the chemical industry, has signed a new software license and services agreement for the company-wide deployment of AspenTech's energy management and optimization solution, Aspen Utilities(TM). The solution will enable Celanese to reduce energy costs. The first phase of the implementation will cover six major sites, each of which possesses the potential for significant benefits.

(Photo: http://www.newscom.com/cgi-bin/prnh/20000811/ASPENLOGO )

"Energy and environment are key elements of Celanese's operations strategy," said Jim Alder, VP Operations and Technical for Celanese Chemicals. "We believe that utilities optimization using Aspen Utilities will provide a consistent decision-making framework and better monitoring capability for our site directors, resulting in the optimum supply of utilities to our process plants and reduced utilities bills."

Energy costs typically are among the largest operational expenses for chemical manufacturers. The Aspen Utilities solution enables companies to make reductions of up to 3-5% in their energy bills by allowing them to optimize their utility system operation and improve the management of contracts with external utility suppliers. This benefit is achieved using a detailed model of the utility system coupled with powerful optimization capabilities, so that companies have an accurate real-time picture of their site-wide energy requirements and can view potential options for improvement.

"AspenTech's customers are facing significant challenges such as global fluctuations in energy prices, the concern over reliable supply of energy and de-regulation of gas and electricity in certain regions of the world," said Larry Evans, Chairman and CEO of AspenTech. "Our energy management and optimization technology gives manufacturers a powerful tool to both cut their costs and reduce the impact of their energy consumption on the environment."

The implementation of the Aspen Utilities solution will be executed jointly by Celanese and AspenTech's Enterprise Solutions organization, and extends Celanese's commitment to AspenTech's technology. Celanese previously standardized on Aspen Engineering Suite(TM) for process simulation, dynamic modeling and process synthesis, and is in the process of implementing AspenTech's advanced control technology in its process plants on a company- wide basis.

About Celanese

Celanese AG is a global chemicals company with leading positions in its key products and world class process technology. The Celanese portfolio consists of five main businesses: Acetyl Products, Intermediates, Acetate Products, Technical Polymers Ticona, and Performance Products. The Performance Products business consists of oriented polypropylene films (OPP), sweeteners and food ingredients.

Celanese generated sales of around 5.1 billion (German) in 2001 and has about 11,800 employees. The company has 30 production plants and five research centers in 11 countries mainly in North America, Europe and Asia. Celanese AG shares are listed on the Frankfurt stock exchange (symbol CZZ) and on the New York Stock Exchange (symbol CZ). More information about Celanese AG can be found on the Internet at the following website: http://www.celanese.com.

About AspenTech

Aspen Technology, Inc. is a leading supplier of integrated software and solutions to the process industries. The company's Aspen ProfitAdvantage(TM) solution enables companies to identify and maximize profit opportunities throughout their entire value chain -- from the supply of raw materials, through the production of goods, to the delivery of final products to customers. The Aspen ProfitAdvantage solution encompasses engineering, manufacturing, supply chain and e-business collaboration technologies, providing the tools that enable manufacturers to design, optimize and execute business processes in real time. Over 1,200 leading process companies already rely on AspenTech's 21 years of process industry experience to increase revenues, reduce costs and improve capital efficiency. AspenTech's customers include: Air Liquide, AstraZeneca, Bayer, BASF, BP, Chevron, Dow Chemical, DuPont, ExxonMobil, GlaxoSmithKline, Lyondell Equistar, Merck, Mitsubishi Chemical, and Unilever. For more information, visit http://www.aspentech.com.

Forward-Looking Statements

Certain paragraphs of this press release contain forward-looking statements for purposes of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. For this purpose, any statement using the term "will," "should," "could," "anticipates," "believes" or a comparable term is a forward-looking statement. Actual results may vary significantly from AspenTech's expectations based on a number of risks and uncertainties, including: AspenTech's lengthy sales cycle which makes it difficult to predict quarterly operating results; fluctuations in AspenTech's quarterly operating results; AspenTech's dependence on customers in the cyclical chemicals, petrochemicals and petroleum industries; AspenTech's need to hire additional qualified personnel and its dependence on key current employees; intense competition; AspenTech's dependence on systems integrators and other strategic partners; changes in the market for e-business solutions for AspenTech's customers; increased governmental regulation and taxation of e-commerce and the Internet; information security and privacy concerns relating to e-commerce; and other risk factors described from time to time in AspenTech's periodic reports and registration statements filed with the Securities and Exchange Commission. AspenTech cannot guarantee any future results, levels of activity, performance, or achievements. Moreover, neither AspenTech nor anyone else assumes responsibility for the accuracy and completeness of any forward-looking statements. AspenTech undertakes no obligation to update any of the forward-looking statements after the date of this press release.

Forward-looking statements (statements which are not historical facts) in this release are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those risks and uncertainties detailed in Celanese AG's filings with the Securities and Exchange Commission, copies of which are available from Celanese AG.

AspenTech, Aspen ProfitAdvantage, Aspen Utilities and the aspen leaf logo are trademarks of Aspen Technology, Inc., Cambridge, Mass.

     Celanese Americas Media Contact:   AspenTech Americas Media Contact:
     Paul Reichenbacher                 Carin Warner
     Tel: +1-507-457-4069               Tel: +1-978-526-1960
     paul.reichenbacher@ticona.com      carin@warnerpr.com

     Celanese Europe Media Contact:     AspenTech Europe Media Contact:
     Henning Kull                       Peter Watt
     Tel: +49-69-305-3740               Tel: +44-122-381-9752
     h.kuell@celanese.de                peter.watt@aspentech.com

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SOURCE Aspen Technology, Inc.

CONTACT:          Carin Warner of AspenTech Americas, +1-978-526-1960,
                  carin@warnerpr.com; or Peter Watt of AspenTech Europe, +44-122-381-9752,
                  peter.watt@aspentech.com; or Paul Reichenbacher of Celanese Americas,
                  +1-507-457-4069, paul.reichenbacher@ticona.com; or Henning Kull of Celanese
                  Europe, +49-69-305-3740, h.kuell@celanese.de
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URL:              http://www.celanese.com
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