AMSC Receives NASDAQ Notification Letter

American Superconductor Corporation

, a global power technologies company, today announced that it received a letter on June 17, 2011 from the Listing Qualifications Department of the NASDAQ Stock Market "NASDAQ") advising the company that, due to its inability to file its Annual Report on Form 10-K for its fiscal year ended March 31, 2011 on a timely basis, the company is not in compliance with NASDAQ Listing Rule 5250(c)(1) for continued listing. This notification was issued in accordance with standard NASDAQ procedures and has no immediate effect on the listing of the company's common stock. The NASDAQ letter indicated that the company has until August 16, 2011 to regain compliance or submit a plan explaining how it expects to regain compliance. If NASDAQ approves AMSC's plan, it can grant the company an extension of up to 180 calendar days from the due date of the Form 10-K (or until December 14, 2011) to regain compliance. As previously disclosed in the company's Form 12b-25 filed with the Securities and Exchange Commission on May 31, 2011, AMSC has not yet completed the preparation of its financial statements for the fiscal year ended March 31, 2011. Additional time is required to complete the preparation and audit of these financial statements as a result of the review of certain revenues associated with shipments to customers in China during the second, third and fourth fiscal quarters of the fiscal year ended March 31, 2011.