Aspen Technology, Inc. (NASDAQ: AZPN), a leading provider of software and services to the process industries, today announced that it has rescheduled the release of its financial results for the first-quarter fiscal 2013, ended September 30, 2012, due to severe weather conditions caused by Hurricane Sandy. The conference call and webcast, previously scheduled for October 30 th at 4:30 p.m. (Eastern Time), has been rescheduled for Thursday, November 1, 2012, at 8:00 a.m. (Eastern Time). The live dial-in number is (877) 245-0126, conference ID code 59815504. Interested parties may also listen to a live webcast of the call by logging on to the Investor Relations section of AspenTech’s website, http://www.aspentech.com/corporate/investor.cfm, and clicking on the “webcast” link. A replay of the call will be archived on AspenTech’s website and will also be available via telephone at (855) 859-2056 or (404) 537-3406, conference ID code 59815504, through December 1, 2012. About AspenTech AspenTech is a leading supplier of software that optimizes process manufacturing – for energy, chemicals, pharmaceuticals, engineering and construction, 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. © 2012 Aspen Technology, Inc. AspenTech, aspenONE, the Aspen leaf logo, OPTIMIZE, and the 7 Best Practices of Engineering Excellence are trademarks of Aspen Technology, Inc. All rights reserved. All other trademarks are property of their respective owners.