AspenTech Also Speaking About the Role of Technology Innovation During Energy Industry’s Premier Gathering of Executives, Policy Makers and Suppliers

Burlington, Mass. - Aspen Technology, Inc. (OTC: AZPN.PK), a leading provider of software and services to the process industries, today announced it will sponsor and participate in CERAWeek 2009 – the premier global energy industry conference – February 9-13 in Houston. Nearly 2,000 energy executives and policymakers from over 55 countries will convene to discuss the central energy challenges and strategies for prospering in a turbulent economy.

• Cambridge Energy Research Associates®, Inc. (CERA®), an IHS company, is a leading advisor to international energy companies, governments, financial institutions, and technology providers.
• AspenTech is one of an exclusive group sponsoring the CERAWeek Executive Global Oil Summit along with IBM and PriceWaterhouseCoopers.
• During the Executive Global Oil Summit, AspenTech’s executive vice president Antonio Pietri, will participate in a roundtable forum titled, "How can technological innovation maintain the economic competitiveness and mitigate the environmental footprint of unconventional production?"
• The world’s top 30 petroleum industry companies use AspenTech’s innovative software to address the most pressing challenges facing the energy industry today.
• Using aspenONE to adopt best practices for process optimization, AspenTech customers are better equipped to meet their operational excellence goals and navigate dramatic economic uncertainty.
• Other industry leaders and dignitaries speaking at CERAWeek 2009 will be U.S. House Rep. Edward Markey, Chairman, House Energy and Commerce Subcommittee on Energy and the Environment; Nobuo Tanaka, Executive Director, International Energy Agency; H.E. Gerhard Schröder, Former Chancellor of the Federal Republic of Germany, and senior executives from the world’s leading energy industry companies.

Supporting Quotes:

Mark Fusco, President & CEO, AspenTech
"The economy has weakened over the past year and we’ve seen volatility and drops in the price of all commodities. Those companies that have continued to optimize their business in both good and bad times will be in the best position to succeed when the economy turns. AspenTech’s customers have seen first hand that leveraging our solutions can help them be better positioned with a lower cost base and improved operating flexibility. We look forward to sharing insights about optimization during CERAWeek 2009. As a sponsor, we are proud to support bringing together the industry’s most influential minds in a forum that will be sure to generate innovative thinking."

Supporting Resources:

Links to more information:

• CERAWeek 2009
• aspenONE for Exploration & Production
• aspenONE for Refining & Marketing

About AspenTech

AspenTech is a leading supplier of software that optimizes process manufacturing – including oil and gas, petroleum, chemicals, pharmaceuticals and other industries that manufacture and produce products from a chemical process. With integrated aspenONE solutions, process manufacturers can implement best practices for optimizing their engineering, manufacturing and supply chain operations. As a result, AspenTech customers are better able to increase capacity, improve margins, reduce costs and become more energy efficient. To see how the world's leading process manufacturers rely on AspenTech to achieve their operational excellence goals, visit www.aspentech.com.