MENT Mentor Graphics Corp.

Mentor Graphics Corporation (NASDAQ:MENT) today announced that it will hold a Webcast press conference on Monday, June 11, 2007 at 5:30 a.m. PDT (8:30 a.m. EDT). The conference includes a 40-minute presentation followed by Q&A. Dial-in and URL listed below are required to view and hear the information. What: Mentor Graphics live Webcast press conference When: Monday, June 11, 2007 at 5:30 a.m. PDT (8:30 a.m. EDT) Where: Webcast URL - http://phx.corporate-ir.net/phoenix.zhtml?p=irol-eventDetails&c=63729&eventID=1576340 Dial-in information - United States: 800-611-1147 International: 612-332-0923 (a) No pass code required The presentation will be available for replay starting at 7:30 a.m. PDT on June 11 at http://phx.corporate-ir.net/phoenix.zhtml?p= irol-eventDetails&c=63729&eventID=1576340. (Due to its length, this URL may need to be copied/pasted into your Internet browser's address field. Remove the extra space if one exists.) About Mentor Graphics Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world�s most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of about $800 million and employs approximately 4,200 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: http://www.mentor.com/. (Mentor Graphics is a registered trademark of Mentor Graphics Corporation. All other company or product names are the registered trademarks or trademarks of their respective owners.)