Release Details

CAMBRIDGE, Mass.--(BUSINESS WIRE)--April 20, 2004-- Aspen Technology, Inc. (Nasdaq: AZPN) today announced that it is the recipient of the prestigious 2004 Supply-Chain Council Award for Supply Chain Management Technology Excellence. The award was received for the implementation of an integrated, real-time supply chain management solution for a customer in the consumer packaged goods industry. The AspenTech project was chosen from over 20 nominations for the award submitted by a range of leading supply chain consultants and technology vendors.

The winning project is an integrated production scheduling and Capable-to-Promise (CTP) solution for a complex manufacturing process involving multiple plants. Both the scheduling and CTP applications are components of AspenTech's broad range of supply chain solutions, which represents more than 20 years of development and domain experience in the process industries. AspenTech clients use the solutions to establish demand-driven supply networks, enabling them to respond more quickly to customers and maximize the efficiency of their operations.

"AspenTech is honored to receive this prestigious Supply-Chain Council award for this innovative project and the significant benefits that it generated," said Steve Pringle, Sr. Vice President, Manufacturing/Supply Chain for AspenTech. "This project demonstrates the value that AspenTech brings to its process industry clients, and reflects our strong commitment to being a leader in the supply chain market."

The Supply-Chain Council announced the winners of its Awards for Excellence in Supply Chain Operations and Management on March 30 during the Supply Chain World 2004 Conference & Exposition in Chicago, Illinois. The awards program was the fourth annual competition among practitioners, technology companies, consultants, system integrators and academics, and is designed to recognize world-class performance and contributions in the area of supply chain management. The Award for Supply Chain Management Technology Excellence is presented to the organization that has developed a methodology or product that enables superior performance in supply chain operations.

About AspenTech

Aspen Technology, Inc. provides industry-leading software and implementation services that enable process companies to increase efficiency and profitability. AspenTech's engineering product line is used to design and improve plants and processes, maximizing returns throughout an asset's operating life. Its manufacturing/supply chain product line allows companies to increase margins in their plants and supply chains, by managing customer demand, optimizing production, and streamlining the delivery of finished products. These two offerings are combined to create solutions for enterprise operations management (EOM), integrated enterprise-wide systems that provide process manufacturers with the capability to dramatically improve their operating performance. Over 1,500 leading companies already rely on AspenTech's software, including Aventis, Bayer, BASF, BP, ChevronTexaco, Dow Chemical, DuPont, ExxonMobil, Fluor, GlaxoSmithKline, Shell, and Total. For more information, visit www.aspentech.com.

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

CONTACT:
For Media:
Aspen Technology, Inc.
Peter Watt, +44 1223 819-752
peter.watt@aspentech.com
or
Aspen Technology, Inc.
Robin Swanger, 218-504 3256
robin.swanger@aspentech.com
or
For Investors:
Aspen Technology, Inc.
Joshua Young, 617-949-1274
joshua.young@aspentech.com