AspenTech’s President and CEO To Highlight How Regional Firms Can Achieve Operational Excellence in Chemical Production

Aspen Technology Selected by Cabot Corp. to Enhance its Global Supply Chain Systems

Aspen Simulation Workbook™ integrates AspenTech’s rigorous simulation technologies and Microsoft® Excel, creating new opportunities to leverage process models

30 Year Distinction Held by Few Software Companies Demonstrates Commitment to Optimization for Energy, Chemical, Pharmaceutical, Engineering & Construction and other Process Industries

Aspen Technology Completes Restatement and Files Amended Annual Report on Form 10-K Reports Record Results for Fiscal Second Quarter 2007

aspenONETM Production Management & Execution application enables managers to monitor and optimize refinery performance

Aspentech Announces SEC Settlement

Aspen Technology Names Mark Sullivan Chief Financial Officer

Jury Returns Verdict against M3 Technology in favor of Aspen Technology in Trade Secret Misappropriation, Copyright Infringement, and Tortious Interference Action

Aspen Technology Comments on Civil Complaint Filed by the Securities and Exchange Commission Against Three Former Officers and the Criminal Complaint Filed by the U.S. Attorney Against One of them, David L. McQuillin